Enphase Energy (ENPH -0.78%)
Q3 2023 Earnings Call
Oct 26, 2023, 4:30 p.m. ET
Contents:
- Prepared Remarks
- Questions and Answers
- Call Participants
Prepared Remarks:
Operator
Good afternoon, and welcome to Enphase Energy's third quarter 2023 financial results conference call. [Operator instructions] Please also note that this event is being recorded today. I would now like to turn the conference over to Zach Freedman. Please go ahead, sir.
Zach Freedman -- Head of Investor Relations
Good afternoon, and thank you for joining us on today's conference call to discuss Enphase Energy's third quarter 2023 results. On today's call are Badri Kothandaraman, our president and chief executive officer; Mandy Yang, our chief financial officer; and Raghu Belur, our chief products officer. After the market closed today, Enphase issued a press release announcing the results for its third quarter ended September 30, 2023. During this conference call, Enphase management will make forward-looking statements, including, but not limited to, statements related to our expected future financial performance, market trends, the capabilities of our technology and products and the benefits to homeowners and installers, our operations, including manufacturing, customer service and supply and demand, anticipated growth in existing and new markets, the timing of new product introductions and regulatory and tax matters.
These forward-looking statements involve significant risks and uncertainties and our actual results and the timing of events could differ materially from these expectations. For a more complete discussion of the risks and uncertainties, please see our most recent Form 10-K and 10-Qs filed with the SEC. We caution you not to place any undue reliance on forward-looking statements and undertake no duty or obligation to update any forward-looking statements as a result of new information, future events or changes in expectations. Also, please note that financial measures used on this call are expressed on a non-GAAP basis unless otherwise noted and have been adjusted to exclude certain charges.
We have provided a reconciliation of these non-GAAP financial measures to GAAP financial measures in our earnings release furnished with the SEC on Form 8-K, which can also be found in the investor relations section of our website. Now I'd like to introduce Badri Kothandaraman, our president and chief executive officer. Badri?
Badri Kothandaraman -- President and Chief Executive Officer
Good afternoon, and thanks for joining us today to discuss our third quarter 2023 financial results. We reported quarterly revenue of $551.1 million, shipped approximately 3.9 million microinverters and 86 megawatt hours of batteries and generated free cash flow of $122 million. Approximately 86% of our Q3 microinverter shipments were IQ8. We exited the third quarter at 48% gross margin, 18% operating expense and 30% operating income, all as a percentage of revenue on a non-GAAP basis and including the IRA benefit.
Mandy will go into our financials later in the call. Let's now discuss how we are servicing customers. Our worldwide NPS was 77% in Q3, compared to 74% in Q2. Our NPS in North America was 78%, compared to 77% in Q2.
Our average call wait time was 1.3 minutes, compared to 1.1 minutes in Q2. We made significant progress on root cause fixes of some customer issues and expanded our field service teams globally. Let's talk about operations. In general, the overall supply environment for microinverters and batteries is quite stable right now.
Let's cover microinverters, specifically U.S. manufacturing. We began manufacturing at Salcomp facility in Arlington, Texas, during the third quarter. We shipped approximately 531,000 microinverters to customers in Q3 from our three contract manufacturers in the U.S.: Flex in South Carolina, Foxconn in Wisconsin and Salcomp in Texas.
We expect to ship approximately 1 million microinverters to customers from our U.S. manufacturing facilities in Q4. Let's talk about batteries. For IQ batteries, we have two cell pack suppliers, both of which are in China.
We have a manufacturing capacity of 300-megawatt hours per quarter, positioning us well to ramp up in 2024. We are looking at bringing manufacturing of IQ batteries into the U.S. by the middle of 2024. Let's now cover the regions.
Our U.S. and international revenue mix for Q3 was 64% and 36%, respectively. In the U.S., our revenue decreased 16% sequentially and 22% year on year. The overall sell-through of our microinverters was down 12% in Q3 compared to Q2.
On the other hand, the sell-through of our IQ batteries in the U.S. was up by 34% in Q3 compared to Q2. In Europe, our revenue decreased 34% sequentially and increased 26% year on year at healthy gross margin. The sell-through of our microinverters in Europe was also down 35% in Q3 compared to Q2.
The sell-through of our IQ batteries in Europe was down by 14% in Q3 compared to Q2. We are now shipping IQ microinverters and batteries into many countries in Europe. We recently entered U.K., Sweden, Denmark and Greece markets with both IQ8 microinverters and IQ batteries. Combined, these new markets represent more than 1.5 gigawatts of residential solar opportunity with countries like the U.K.
having a healthy battery attach rate of 30%. I'll provide some brief commentary on Australia. Our revenue in Australia more than doubled year on year. We are quite pleased with the launch of our Enphase Energy system, it is state-of-the-art powered by IQ8 microinverters plus a third-generation battery.
Let me comment on rest of the world. In Brazil, we launched our IQ8P microinverters, 480 watts DC, the highest power microinverters that we have. We also launched the solar graph software platform and have good feedback from installers there. In addition, we started shipping both the 384-watt IQ8HC and the 480 watts IQ8P microinverters into India to support high-powered solar panels.
Let's now talk about Q4 guidance. We are guiding revenue for Q4 in the range of $300 million to $350 million. This reflects approximately $150 million of channel inventory correction in the U.S. and Europe.
In other words, we are undershipping to the end market demand for our products by approximately $150 million. We anticipate undershipment will continue in Q1 and expect our channel inventory to normalize in Q2. Of course, we are conservative and assuming the demand picture is unchanged from the current level. So what has changed since 90 days ago when we told you that the inventory levels would normalize by the end of Q3.
We have seen a substantial demand reduction in Europe. We've also seen the U.S. market continue to fall, driven by California. When the demand falls, we think more decisive inventory correction becomes necessary.
We are being conservative in our assumptions of no demand recovery until Q2 in this framework. So that explains the guidance. Despite the large reduction in Q4 guidance, we are maintaining our non-GAAP gross margin above 40% in our guidance without the IRA benefit. We aren't making any broad-based pricing changes at this time on microinverters, and we have already made the necessary changes on batteries before.
Our pricing and operations team are doing an excellent job of managing pricing and reducing costs. Let's discuss some market trends. I'll give you a little more than usual color on markets. Let's split the U.S.
market by non-California states and California. For non-California states, the sell-through of our microinverters was 4% lesser in Q3 compared to Q2. We see this business starting to stabilize, given the weekly sell-through trends. In California, the sell-through of our microinverters was 25% lesser in Q3 compared to Q2 due to the NEM 3.0 transition.
It will take a few more quarters for our installers to fully transition to NEM 3.0 and normalize sales to NEM 2.0 levels. Utility rates are continuing to move higher in California with one California utility recently requesting a 22% rate hike. Assuming that even half of that rate hike is approved by the CPUC, the payback period for a NEM 3.0 solar plus a battery system will become close to a NEM 2.0 solar-only system. So that's good.
Let me say a few words about U.S. market share before I give more color on Europe. We see stable share today for our microinverters based on both internal, as well as third-party data. Competition is not new for us.
We have always relied on our differentiated technology with our distributed AC architecture, product quality and customer service to win share, and we expect this to continue. We have many tools at our disposal such as the installer services that we have bought -- we made several acquisitions over time in the last couple of years such as the software tool for design and proposal, the permitting tools, lead management, etc. We have a lot of tools at our disposal to help our installers and our partnerships go a lot deeper in the downturn. Let's talk about Europe demand a little bit.
We are facing two challenges in Europe, and the situation has dramatically changed from the last quarter -- from 90 days ago. We saw a much weaker demand recovery from summer. We also see a lot of distributors facing oversupply of solar equipment, particularly panels, leading to much more aggressive destocking. Despite this temporary weakness, we think that the pullback in Europe will be temporary as the fundamentals remain strong and we are relatively underpenetrated in the U.S.
We are entering a lot -- lots of new geographies with our IQ8 microinverters and batteries. So we remain very bullish about Europe. Let me spend a few minutes discussing our three largest markets in Europe, the Netherlands, France and Germany in detail. In Netherlands, our largest European market, our Q3 sell-through was down 40% compared to Q2.
This was our first sequentially down quarter in the last two years. Installers tell us that the customers fear of an export penalty and confusion around ending of the net metering has caused the market pull back. I was in Netherlands two weeks ago. I visited with our leading installers, I came away confident that this pullback will be short lived.
We think that the plan for net metering will be clarified after the country's elections in November. The payback period are continuing to be attractive in Netherlands. In addition, total system solutions, which includes batteries, solar and EV chargers are going to become the norm as dynamic tariffs become more prevalent in Netherlands. We are well-positioned to take advantage of these changes.
In France, our Q3 sell-through was down 34% compared to Q2, driven by seasonality. We see potential for this market to rebound very quickly. We are already seeing that as utility rates recently moved higher and are expected to increase even more in early 2024. In Germany, our Q3 sell-through was down 32% compared to Q2.
We saw strong sequential growth in installer count and activations, and we are continuing to gain traction there. Let's talk about our new products, IQ batteries. Our sell-through for batteries has been steadily increasing over the last couple of quarters. We are at an inflection point for our battery business.
With our IQ Battery 5P, we can deliver the best power specs and the best commissioning times of any Enphase battery till date at an industry-leading 15-year warranty and at the right price point. The battery adoption rates are on the rise globally. We are well-positioned to grow battery sales throughout 2024, and we are working on entering even more countries in Europe and Asia in the next few months with our IQ Battery 5P. In addition, we expect to introduce our fourth generation battery in the middle of 2024.
That will have a much reduced form factor and a reduced cost structure. As previously discussed, we have entered many new markets with the IQ 8 family of microinverters. We plan to enter many more new markets in Europe and Asia in the next several months. Let's talk about our latest microinverter for the residential segment in emerging markets.
I did mention this before. This is the IQ8P microinverter, our highest power microinverter till date, 480 watts of AC power, that can support solar panels up to 650-watt DC for Brazil, India, South Africa, Mexico, Spain and other emerging markets. We have started shipping the product into Brazil, South Africa and India in Q3 and are on track to start shipping in Mexico and Spain in Q4. The other variant of the IQ8 microinverter -- IQ8P microinverter with a new three-phase cabling system is well suited for small commercial solar installations, ranging from 20 to 200 kilowatts.
We are doing beta installations as we speak there, and we expect to release the product this quarter into the U.S. market. We are very bullish about the small commercial solar business where we believe we can add value to our business owners and installers with our quality and good customer experience. Let's cover EV charging.
We shipped over 3,500 chargers in Q3, compared to over 6,600 chargers in Q2. We launched our IQ smart EV chargers in the U.S. just a few days ago, both U.S. and Canada, actually.
The IQ EV charger is Wi-Fi-enabled. It includes smart control and smart monitoring capabilities. It seamlessly integrates into our solar and battery systems to help homeowners maximize savings, for example, by directly charging from solar energy only, that's called green charging. We are also working on developing IQ EV chargers for many countries in Europe, and we expect to introduce them in the middle of 2024.
Let's now discuss our installer platform briefly. Solargraf, our cloud-based design and proposal software platform, now provides NEM 3.0 functionality for solar and battery systems in California. We are now offering 3D and shading features and continue to make progress on our new features and functions. The software platform is now available to installers in U.S., Germany, Austria and Brazil.
We expect to make this software release as part of our standard offering to any country that we enter. Let me conclude. We are managing through a slowdown in our overall demand. In the U.S., it is due to high interest rates on NEM 3.0.
In Europe, it is due to broad macroeconomic conditions. Despite this, we are very bullish about our business long term. We see several positive drivers that will accelerate adoption, such as the 30% ITC tax credit in the U.S., rising utility rates globally, increased grid instability also globally, climate change and, of course, increasing EV adoption worldwide. We have no doubt that these will drive meaningful solar plus battery growth.
Our strategy is very clear. We manage for the long term. We are doubling down on our relationships with our customers during these times. We are driving down installation times and investing in our customer service teams.
We are also strongly investing in innovation. We are working on IQ9 and IQ10, our next two generations of microinverters, as well as the next two generations of batteries. We are also rapidly expanding worldwide with systems comprising of IQ8 microinverters, IQ batteries, IQ EV chargers and home energy management software. We are introducing products for the small commercial and emerging residential solar markets, and we are making continuous enhancements to our installer platform in addition to driving toward world-class cost on our products.
We remain very positive about our future growth and profitability, and we'll continue to make best-in-class home energy systems with a laser focus on innovation, quality and customer experience. With that, I will turn the call over to Mandy for her review of our financial results. Mandy?
Mandy Yang -- Chief Financial Officer
Thanks, Badri, and good afternoon, everyone. I will provide more details related to our third quarter of 2023 financial results, as well as our business outlook for the fourth quarter of 2023. We have provided reconciliations of these non-GAAP to GAAP financial measures in our earnings release posted today, which can also be found in the IR section of our website. Total revenue for Q3 was $551.1 million.
We ship approximately 1,585.6 megawatts DC of microinverters and 86.2 megawatt hours of IQ batteries in the quarter. Non-GAAP gross margin for Q3 was 48.4%, compared to 46.2% in Q2. The increase was driven by increased net IRA benefit. GAAP gross margin was 47.5% for Q3, given non-GAAP gross margin for Q3 included $14.5 million of net IRA benefit for our microinverters made in the U.S.
and shipped to customers in the quarter. Non-GAAP operating expenses were $99 million for Q3, compared to $98.2 million for Q2. We are diligently managing operating expenses and we'll continue to do so in the coming quarters. GAAP operating expenses were $144 million for Q3, compared to $153 million for Q2.
GAAP operating expenses for Q3 included $41.1 million of stock-based compensation expenses and $3.9 million of amortization for acquired intangible assets. On a non-GAAP basis, income from operations for Q3 was $167.6 million, compared to $230.5 million for Q2. On a GAAP basis, income from operations was $118 million for Q3, compared to $170.3 million for Q2. On a non-GAAP basis, net income for Q3 was $141.8 million, compared to $205.6 million for Q2.
This resulted in non-GAAP diluted earnings per share of $1.02 for Q3, compared to $1.47 for Q2. GAAP net income for Q3 was $114 million, compared to GAAP net income of $157.2 million for Q2. This resulted in GAAP diluted earnings per share of $0.80 for Q3, compared to $1.09 for Q2. We exited Q3 with a total cash, cash equivalents and marketable securities balance of $1.78 billion, compared to $1.8 billion at the end of Q2.
As part of our $1 billion share repurchase program authorized by our board of directors in July 2023, we repurchased approximately 847,000 shares of Enphase common stock in Q3 at an average share price of $129.92 for $110 million. In addition, we spent approximately $8.5 million by withholding shares to cover reporting taxes for employees [Inaudible] in Q3. That reduced the diluted shares by approximately 59,800 shares. We expect to continue this anti-dilution plan.
In Q3, we generated $145.9 million in cash flow from operations and $122 million in free cash flow. Despite the macroeconomic challenges, we continue to generate healthy free cash flow as a result of our strong financial discipline. Capital expenditure was $23.8 million for Q3, compared to $44 million for Q2. Capital expenditure requirements decreased as we largely completed building out our U.S.
manufacturing line. Now let's discuss our outlook for the fourth quarter of 2023. We expected our revenue for Q4 to be within a range of $300 million to $350 million which includes shipments of 80 to 100-megawatt hours of IQ batteries. We expect gross margin to be within the range of 46% to 49% with net IRA benefit and 38% to 41% before net IRA benefit.
We expect non-GAAP gross margin to be within a range of 48% to 51% with net IRA benefit and 40% to 43% before net IRA benefit. Non-GAAP gross margin excludes stock-based compensation expenses and acquisition-related amortization. We expect the net IRA benefit to be between $26 million and $28 million, an estimated shipment of 1 million units of U.S. manufactured microinverters.
We expect our GAAP operating expenses to be within the range of $142 million to $146 million, including approximately $57 million estimated for stock-based compensation expenses and acquisition-related expenses and amortization. We expect our non-GAAP operating expenses to be within a range of $85 million to $89 million. We are reducing our non-GAAP operating expenses by 12% in Q4 as compared to Q3, but we will not compromise our investing in customer service, innovation and sales. Moving to tax.
Since we have utilized most of our net operating loss and research tax credit carryforwards, we are now a significant U.S. cash taxpayer. We expect GAAP and non-GAAP annualized effective tax rate for 2023 to be at 22% plus or minus 1% with IRA benefit. We expect the production credit net of any incremental costs for domestic manufacturing to be in the range of $26 to $28 per microinverter sold to customers in Q4.
We expect to ship 1 million microinverters to customers this quarter. We now have all three of our U.S. manufacturing facilities operational. With that, I will open the line for questions.
Questions & Answers:
Operator
[Operator instructions] At this time, we will take our first question, which will come from Brian Lee with Goldman Sachs.
Brian Lee -- Goldman Sachs -- Analyst
I know the environment is pretty uncertain, so I appreciate the additional sort of out quarter visibility in some of the market-by-market color, Badri. So can I just ask, as you think about the framework, you said you'd undership in Q1 the way that you're undershipping in Q3 and Q4. Can you give us one, a sense of how much you expect to undership in Q1? And then, you made the comment that this is all contingent upon sort of demand trends staying about where they're at. Can you give us a sense of what your internal expectations for demand trends are? It sounds like you don't expect them to get worse, but sort of can you quantify that a bit? And then, I have a follow-up.
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I think, there are a few puts and takes. First, to answer your question is, is the undershipment going to be close to $150 million in Q1? We expect it to be a little bit less than $150 million, but not too much less. That's our expectation.
And second is I will talk about markets and then it will become clear to you. First of all, we see the -- on California state stabilizing. We see that. So therefore, we aren't that much worried there.
Of course, things could go a lot south during the winter, but we are already at pretty low levels. So we don't think so. California is definitely a wild card. But even if that goes down 10% more, I think we'll be fine because we expect Europe to recover a little more.
Europe right now, for all the reasons I said, we basically are undershipping quite a bit in order to normalize inventory. And that will be the fastest to normalize. So we expect Europe revenue to come back a little bit up in Q1. Therefore, what we expect, at least -- what we expect internally is that our revenues, selling revenues, we think will be close to what we are looking at in Q4.
Of course, I don't have a crystal ball. I'm not giving you Q1 guidance but this is our expectation right now. And Q2 onwards, we think the channel inventory is going to approach normalized levels. And therefore, that normalized level, assuming the demand picture is unchanged, that normal level is what we said roughly around $450 million to $500 million is the normal level.
That assumes no change in demand from the current situation. So we expect our revenue to approach that number in the second quarter. But of course, that doesn't tell you too much because I'm assuming that the demand is the same as the current depressed level. One thing which I forgot to say is in France, which is another very big market for us.
We already see the sell-through rates, for example, in the first three weeks of this quarter are already back up high which is good. Basically, the utility -- there was a utility rate hike in August. There is one more expected in February. So we think France will recover fast.
Netherlands, we have some education to do. Like what I told you, the -- there is some political uncertainty there. We think that will get cleared after Q4. So I think, Q1 will be definitely better.
And that's a great market. Where that market is now, in addition to solar, I think with the dynamic tariffs starting to become prevalent in Netherlands, there is opportunity for battery storage in 7 million homes. Today, just so that everybody understands, Netherlands, there is 7 million to 8 million homes. Solar is there in 2.2 million homes today.
And now, with this opportunity where net metering is going to evolve into something similar to California, not exactly the same, but very similar, what's going to happen is it opens up opportunity for solar plus storage in all 7 million homes. So I think, long term, it's going to be great for us, but I told you what's going to happen in the short term.
Brian Lee -- Goldman Sachs -- Analyst
Yes. That's great context. I appreciate it. Just a second one here, and I'll pass it on.
On the margins -- gross margins, non-GAAP, it seems like you're guiding to low 40s ex IRA benefit. How much is that -- it's down a couple of hundred bps from what you've been tracking at recently? How much of that is due to pricing? How much due to mix? Can you give us a sense of the margin puts and takes into year-end? And then, do you see anything that would put incremental pressure on the margins into next year?
Badri Kothandaraman -- President and Chief Executive Officer
It's pretty simple. And Brian, you will understand it quickly. The -- you can see our storage business is actually going a little bit up. Our microinverter business is the one that is going a lot down now because of our undershipment.
And therefore, if you see it's a product mix issue and microinverters have a little bit more gross margin than storage. And therefore, with this product mix, that's why we have the guidance of non-GAAP gross margin 40% to 43% for the company without IRA. With IRA, non-GAAP gross margin of 48% to 51%. So in terms of pricing, I mean, we are not planning to make any broad-based pricing changes.
Of course, the pricing, there is a lot of competition, but we have seen competition for the last few years since I've been here. We have a very disciplined business process. It's a pricing business process. It's called SPA [Inaudible] likes to talk about it.
It's a special pricing adjustment. We have been doing that forever. And it is not new. That's one.
And also, in these times, of course, underloading, we have to work with our contract manufacturers, take care of underloading, but in these times, especially when you have multiple suppliers for a particular component, multisourcing for a component, this is the opportunity where we can drop costs a lot. So our target -- I mean, any good company in these times, we should be able to drop our cost by 10% for the year. And we'll be targeting that. And so, we have to talk both the equations, pricing and cost.
And so, we are quite confident in our gross margins. This is what we do. It is not new. This is what we established when I joined the company, is we have a pricing team that prices based on value.
We have a world-class cost team that works on costs. And it' business as usual for us in these environments.
Operator
Our next question will come from James West with Evercore ISI.
James West -- Evercore ISI -- Analyst
Badri, as we're going through this period of destocking and some weakness in certain markets, understanding that you've always faced competition and you have a very value-based pricing strategy, are you seeing any behavior that's -- by your competitors that is somewhat irrational? Or is the market overall behaving rationally, understanding that this -- we'll get a few quarters?
Badri Kothandaraman -- President and Chief Executive Officer
Well, I'll be lying if I tell you I'm not seeing something irrational. Of course, installers are very stressed, right? They do want to take advantage of the lowest cost available at a given point in time. So therefore, sometimes without understanding, they may want to switch to somebody who's offering low cost. But usually, most of our installers are -- they have a lot of experience.
They are very well trained now, and they understand the importance of distributed architecture. They understand the importance of single point -- no single point of failure. They understand quality. They understand customer service.
And therefore, you might save a few dollars upfront. But if you have a quality problem, a service call by the installer is a truck roll, you spend a lot of money in one truck roll. And if you just do one more, I mean, that's it, you have no more room there despite the low cost. So it's a penny wise pound foolish strategy to do that.
And they've all realized it. And if you actually put things in context, let us say the pricing is $3 or $3.50 for one, you look at the inverter bill of materials, probably of the order of 10%. Should you play around there? Should you take a lot of risks there. And it's their call at the end of the day, and many of them are wise to say we're not going to make that call.
So I mean, we have a lot of robust discussions. This is the time where we are talking to customers more than ever. We have a lot of other tools at our disposal, for example, Solargraf. We do design and proposal.
We can generate leads for installers at very economical rates. We can help them on permitting services, for example, sometimes even free of charge. We have a lot of tools at our disposal to reduce their soft costs. And that's critical because we have to look at everything.
We cannot look at component level. We have to look at the full system level in these times. And once you start looking at that and have these discussions usually comes back to, we get more market share, not less. And more installers want to move to us, not less.
You can see some evidence of that in the third-party reports.
James West -- Evercore ISI -- Analyst
OK, OK. Got it. That's very helpful. Just one quick follow-up for me.
You mentioned producing IQ batteries in the U.S. by middle of 2024. Did you give a capacity number along with that?
Badri Kothandaraman -- President and Chief Executive Officer
No, we have not given. We will provide more details as we come close to that day.
Operator
Our next question will come from Eric Stine with Craig-Hallum.
Eric Stine -- Craig-Hallum Capital Group -- Analyst
So just talking about California, I can appreciate talking or thinking about that as a wildcard, given what's going on in the market. But if I think about the expectation that that market stays flat, but then the hangover from NEM, which you said has a few quarters here left to work out, I don't want to put words in your mouth, but I mean, is it fair to say that there is some cautious optimism about California as we get into the back half of next year?
Badri Kothandaraman -- President and Chief Executive Officer
Absolutely, yes. As we get into the back half, absolutely. Meaning one is, the utility rates are continuing to go up. The second is, let's assume the utility rates go up even by half the amount they are advertised, the payback like what I said is going to become -- I mean, for a solar plus storage system is going to become the same as -- almost the same as a solar-only NEM 2.0 system.
And the economics are there actually today. The battery cannot only provide resilience, it can help the grid during times of stress. In August and September when the grid needs it the most. So it's a combination of you get resilience for yourself, you make money by providing grid services, which is incorporated into the utility rates right now.
And we are well-positioned to doing that. Why? Because we got great microinverters, number one. We got batteries now that can discharge at very high power, double the power of our earlier batteries. Why is that important? Because during certain hours, you have the utility paying you a lot for exporting power to the grid and what we can do because of a high discharge rate, during those times, we can maximize the power.
So we can do that. So we have solar plus storage. And of course, we have complete energy management software. And we couple that with our Solargraf design and proposal tool.
We have everything. All the optimization at the fingertips of the homeowner. And many times, he needs to do nothing. He just needs to turn on an optimization engine, it will do the right thing for him.
So we're absolutely very bullish about California toward the second half of 2024.
Eric Stine -- Craig-Hallum Capital Group -- Analyst
Got it. And maybe just sticking with California for my follow-up. With NEM, is that whole -- that transition takes place being the biggest factor. I mean, what are some of the other factors that could -- that caused California to be a wild card? What are the things that are maybe top of mind for you that could cause that market to take another leg down?
Raghu Belur -- Chief Products Officer
Yes. This is Raghu. And as Badri mentioned, all of the potential tailwinds that are there, remember, in an environment where the demand per home is continuing to go up, people are continuing to electrify. People are buying more and more EVs, heat pumps, etc.
And couple that with utility rates where they are and going further up, this is the right solution. Solar plus battery is the right solution. The energy management software is absolutely the right solution in order to drive your ROI and as well as reduce your payback. And to that end, what we have done as well is a lot of education into the marketplace in terms of explaining to people what the benefits of solar plus battery system with energy management and etc., and going out there and educating the market, as well as providing them with a lot of tools.
So in this environment where demand is going up, you have the education, you have the tools. The financials are there, the payback is very good. That's the reason why we are extremely bullish about California coming back strongly.
Badri Kothandaraman -- President and Chief Executive Officer
So to answer the question in another way, the headwinds are -- headwinds that we see are installers aren't educated by us properly. If we don't do a good job of educating the installers, things can stall out a little bit. So it is important for us and other companies too in this space to make sure the installers, whatever we provide installers, the tools are very easy to use so that they can sit in the kitchen table and look at the homeowner in the eye and say, your payback is six years. And here is why your payback is six years and explain to them very confidently.
And it's not just Enphase, it is Enphase plus our competition plus all of the energy companies. All of us have to do a job in training the installers. And I think that is, of course -- that's a piece that is not very easy to do. And you cannot have enough of it.
So that's the biggest headwind that I see.
Operator
Our next question will come from Colin Rusch with Oppenheimer.
Colin Rusch -- Oppenheimer and Company -- Analyst
Can you talk a little bit about how much modulation you can do with the opex as you look at investing in these incremental programs and bringing these products to market, is there some incremental cutting that you can do? Or there's going to be a regular spend increase on the R&D side?
Badri Kothandaraman -- President and Chief Executive Officer
No. I mean, we are cutting opex by 12% from Q3 to Q4. How are we doing that? We are on a hiring freeze, except for critical positions, for example, in sales and customer service and to a little bit on the innovation side there. So basically, that has got a big effect on bringing down costs.
The other ones are there are a few professional expenses like, for example, this is the time where we look at a lot of fat -- cutting out a lot of fat in the company. For example, when the companies are doing well, we do hire a lot of contractors and we are looking at all of those and we have taken all the necessary actions to cut that level as well. And of course, as we continue to grow, I can -- I cannot deny that there is some fat that we found we can easily cut in other areas. We're able to cut about 12%.
We are always looking for further room to cut because we'd like to get back to our baseline of opex pretty quickly, which is 15% of sales. So we'll give the guidance accordingly. And of course, this is a dislocation in revenue, and that is temporary. But we are very cognizant of that.
And we are always going to be trying to operate close to our model which is 15% of sales.
Colin Rusch -- Oppenheimer and Company -- Analyst
Excellent. And then, on the component side, given the change in volumes that you guys are working through on the microinverter side, obviously, you're guiding to reasonably stable gross margins here, but I'm assuming that there's going to be some breakpoints on the components that you may run into with a negative impact. Can you just talk a little bit about how your suppliers are scaling down with you here over the next quarter or two or three and what that might do to your COGS line?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, it is a tough situation for our contract manufacturers, no question. And -- but we have great partners here. We have Flex, amazing partner who helped us when we were -- especially 2017, 2018, when we had some tough times, they were there right with us.
Salcomp also, a great partner. So we work well together. We do have -- this is the time where both of us can recognize saying, OK, is this a short-term problem? Is this a long-term problem? Can we do things structurally. We recognize that both of us need to be profitable, not just one versus the other.
And we do take some necessary actions. And all of those are confidential in terms of our relationships, I mean, we cannot disclose the actions we are taking, but our P&L always incorporates all of these. And so, the message is over the next few quarters, we will continue to work with them. We will give you the P&L transparently in the guidance for gross margin.
But we are very confident that we are finding the right solutions working together.
Operator
Our next question will come from Philip Shen with ROTH Capital.
Philip Shen -- ROTH MKM -- Analyst
Badri, you brought up SPAs. So I figured I jump in with a question on that. As you know, our checks have come up with lower micro pricing under a bunch of SPA agreements on the order of 10%. Does that resonate with you at all? Or is that off base? I know you often will get something in return for some kind of price when you negotiate the SPAs, maybe exclusivity or higher volume.
Can you just talk through that a little bit? And then, Mandy, can you talk through how SPA accounting might work on your financial statements. For example, do you net the SPA, like the refunds against your sales, you have net sales? Or do you accrue a liability on your balance sheet?
Badri Kothandaraman -- President and Chief Executive Officer
So SPA, first of all, for the others on the call, SPA stands for special pricing adjustment. It is a business process that has been forever at Enphase. And it is always happening. It's business as usual.
A large fraction of our business usually happens at what we call as a DLP, which is the distributor list price. And if business happens at DLP, there is no SPA. But for a small fraction of our customers, depending upon how their volumes may go up within the quarter, next quarter, depending on their forecast, we do SPA. SPAs are you have a volume price curve.
And when the volume goes up, the price comes down. And that's how it is. And that process is very active. It's always been active.
It's the one I instituted six years ago when I came and the accounting for that is unchanged, whatever. It is exactly what we have done in the last six years. So you talk about it in dollar reduction, all of those are anecdotes, they don't matter. One customer doesn't matter.
It's not a trend. It is a large fraction of our customers buy at the least price. So I'd like you to -- if there is a broad-based pricing adjustment, we will tell you. And we are telling you right now that there's no broad-based pricing adjustment from us.
Yes, we will continue to do SPA. That's the way of life for us. And sometimes, it is a way for us to lock market share for the next X amount of quarters. And we'll do that.
It's business as usual. Nothing new.
Mandy Yang -- Chief Financial Officer
So Phil, to answer your accounting question, yes, we accrue for SPA rebates as our liability, right? When we recognize revenue, the associated future potential rebates for the current quarter shipping, we accrue a reduction in revenue and it's a liability on our balance sheet. Same accounting process, no change.
Philip Shen -- ROTH MKM -- Analyst
Great. OK. And then, shifting gears, I appreciate that color. I know you don't have any official guidance for '24.
I was wondering if you could talk through how you expect margin to trend by quarter in '24. So you gave some perspective on Q1. There's undershipment there. Close to Q4, so due to product mix, so should we expect Q1 margins to be similar to Q4 because that product mix is maybe more heavily skewed to batteries again? And then, due to product mix returning back in this base case to micros, more micros potentially in Q2 after the undershipment in Q4 and Q1, would you expect margins to return back to the pre-undershipment levels in Q2 of '24 and back half next year?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, that's logical. It is logical. If Q1 -- what you said is right.
We expect similar levels. Of course, I'm not giving guidance, but I'm just giving trends. And then, Q2, we expected to because the mix is going to change. The microinverter mix is going to be a little bit higher than the prior quarter.
So we expect that logically. That's correct.
Operator
Our next question will come from Mark Strouse with J.P. Morgan.
Mark Strouse -- JPMorgan Chase and Company -- Analyst
I believe I asked this on the 2Q call as well. But just kind of given the precipitous decline in valuations across the space, I thought it's worth revisiting. So you're, obviously, sitting on a pile of cash. You continue to generate cash.
Just curious, your latest thoughts on M&A, if that's something that you're planning on leaning into until the macro improves here?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. We do take a look at a number of companies all the time, every week. I have an M&A meeting. There are a lot of companies that come.
We are very careful, especially in these times to not buy something in a hurry. We're also careful of making sure that that company is aligned, of course, in terms of strategic fit and cultural fit. The former is extremely important, the latter is practically even more important. So the areas that we usually look for are more in the energy management software, sometimes in home automation, for example, small commercial solar, any innovation in batteries.
We look for these. Usually, we like smaller companies, bolt-on acquisitions. That's what we have done until now. But I mean, we are looking at all kinds of companies.
Please stay tuned. If we were going to move on something, it won't be without you knowing.
Mark Strouse -- JPMorgan Chase and Company -- Analyst
And then, just a real quick follow-up. I apologize if I missed this, but was there an update on the small commercial product, the timing or any color there?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. Yes, there was. We are right now doing beta installations as we speak. The product is working great.
We expect to introduce this product in this quarter, current quarter, and we expect to make some reasonable revenue out of this product in Q4.
Operator
Our next question will come from Steve Fleishman with Wolfe Research.
Steve Fleishman -- Wolfe Research -- Analyst
The $150 million of undership that you're talking about. Could you break that out between the U.S. and Europe?
Badri Kothandaraman -- President and Chief Executive Officer
I would say approximately equal between the two.
Steve Fleishman -- Wolfe Research -- Analyst
OK. And then, in Europe, the impact of -- you mentioned two things, the weaker demand and then also the issues with the distributors destocking like, could you just give some flavor of what -- when you look at the weakness you started to see what's -- what -- are they about equal drivers? Is one kind of dominating the other?
Badri Kothandaraman -- President and Chief Executive Officer
Actually, to tell you the truth, every country is a little bit different. Clubbing them together under macroeconomics will not do justice. But there are some -- a few factors. Let me tell you.
Overall thing that can be generalized. It's basically if you rewind to last year, all distributors, installers, consumers were a little -- were a lot more aggressive due to the Ukraine crisis. The Ukraine crisis, the shortage of natural gas caused many countries to be very aggressive to pull in their plans for renewables. And we saw a huge spike in virtually every country in Europe.
Solar plus storage, everybody started stocking up a lot, and we also profited from that. Our revenue also peaked. But then, that enthusiasm is a little bit tempered right now. And because of that, what's happening is the distributor suddenly realizing that they got more on their hands.
And also earlier, maybe a year and a half back, the product availability wasn't that high because of that increase in demand. But now, all of the suppliers have geared up, especially panels. Product availability of panels is very high. So a lot of over inventory, particularly on the panels has happened.
That is putting a pressure on the distributors because they've purchased inventory at high prices before and now the prices have collapsed on panels. So there is some financial weakness there. But again, they're -- so therefore, they are conservative now and they want to hold as less inventory as possible. So that's kind of a macroeconomic.
Now let's come to Netherlands, our biggest market. Netherlands has got very interesting dynamic that when I went there two weeks ago because I went there when I heard that our demand was dropping, I got concerned. I went there and when I looked at it, Netherlands situation is actually not so bad. If you see, their payback is about six years.
But they had a scare recently, a couple of maybe two or three months ago where an energy company called Vandebron basically said that to the consumer saying, we are going to charge you a penalty to export solar back into the grid. And Vandebron is a very small fraction. There are about 35 energy companies, I think, in Netherlands, it's a deregulated market, Vandebron is one of them. They serve about 3% of customers.
They basically said that, "Oh, we're going to charge you an export penalty." All they were trying to do is to put some pressure on the government saying, you need to help us with net metering because the simple fact of the matter is Netherlands has got wind, it's got solar, there is 2.2 million homes with solar out of 7 million homes. These -- if they start to export solar energy in a random manner, the energy companies are finding they cannot handle that easily. So they are putting pressure on the government to say, OK, net metering needs to evolve into something where the customers have self-consumption, which is solar plus storage. And so, it's actually extremely good for us there.
But the way they are doing it is, of course, a little bit disruptive. So there is -- the government is going to respond once it is in place. Now there is an election happening, net metering clarity is going to come probably after that. But the way it's going to evolve is this market, and the net metering will still last until 2025.
So we have covered for the next two years with good payback. And then, the payback will be maintained after that with the combination of solar plus storage plus dynamic tariffs, which is getting popular there. So that's the big picture in Netherlands. Many of the European countries are evolving in a similar way.
Many of them have gotten dynamic tariffs. Germany is a little bit ahead. They don't have dynamic tariffs, but they introduced feed-in tariffs early, which very similar to net metering, export is not paid as much as import. In fact, it's only a fraction.
That is why Germany, you find 80% attach rate on batteries. So long answer to your question, but that's the color on Europe.
Steve Fleishman -- Wolfe Research -- Analyst
I guess, just to wrap the topic up overall, just let's say, we continue to move away from the kind of Ukraine energy crisis conditions but we do have these markets each put in these changes. Just does your kind of expectation of Europe kind of improving? Can it be driven just by these market-by-market changes? Or do you need to see some kind of move up in energy prices again?
Badri Kothandaraman -- President and Chief Executive Officer
Well, I didn't talk about energy prices. Energy prices are also increasing. In places like France, the energy prices are also going up. So I mean, energy prices are going to help us.
The utility rates are increasing. And so, that is definitely going to be a tailwind. But make no mistake, despite all of this, in a place like Netherlands, 2 gigawatts of solar in a place like France, the payback is extremely good still, five or six years, where can you get that? Even just for solar, it's going to evolve into solar plus storage with a payback of maybe seven to eight years, but still very good for a 25-year product. So there is a small dislocation right now due to inventory issues due to these, but that's why we expect the ramp-up normalized -- I wouldn't say normalization, revenue recovery, a quick revenue recovery at least to some level in Europe.
Operator
Our next question will come from Jeff Osborne with Cowen.
Jeff Osborne -- Cowen and Company -- Analyst
Badri, I was just curious on your expectation for a 2Q recovery. What is your working assumption on normalized inventory in the channel? I think, in the past you talked about eight to 10 weeks and assuming that is still the case, I guess, is there an argument that now that manufacturing is localized and continent by both yourself, as well as competitors that -- why wouldn't that number be five or six weeks and maybe pressure would continue into Q2.
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, what you're saying is possible, but we don't think so. So I'll give you a quick primer on the weeks on hand. So you follow it.
And I think, generally, I'd like to say that everybody follows it. For example, if you have, let's say, you start off with 100 units at the beginning of a quarter in the channel, and let us say you drain inventory at 10 weeks -- I mean, 10 units a week. And you also ship into the channel at 10 units a week, OK? So you ship into the channel at 10 units a week. You drain from the channel at 10 units a week.
Therefore, at the end of the quarter, you find yourself at the same 100 because 100 plus 130, which is 13 weeks, minus 130, you have 100 units at the end of the quarter. You ask yourself what is the weeks on hand. You say that is 100 divided by 10. That's 10 weeks.
So remember that number, 10 weeks. Now I say, oh, my demand is suddenly dropped by, let us say, 40%. That means I have four units a week that is accumulating. So that means -- and assume I ship the same number of units into the channel because I'm slow in recognizing that the situation has changed.
So let us say I still ship the same 130 as before. But now, my drain is only 78 instead of 130. So I therefore end up with four units excess per week, which is 52 units more than the last case. So now, I have at the end of the quarter, 152, but my end customer demand is only six units a week.
So I tell you that my weeks on hand now is 152 over six, which is 25 weeks. So I suddenly go, my weeks on hand increases by 150% due to a 40% drop in demand. If I am -- I continue to be oblivious of -- continue to be oblivious and ship the same material into the channel. So it can blow up disproportionately right? And of course, the further the demand drops, the further your weeks on hand will go up and the converse is true.
So if the demand improves a little bit, the weeks on hand is going to come down fast. So we think that the distributors -- I mean, will look at logical things here because even a 10- to 12-week inventory will be the similar dollar number that they have held in the past. And in fact, the lesser dollar number that they've held in the past. So we think logic will prevail and -- of course, end market demand could change all of that pretty quickly.
So weeks on hand is not something that you -- that is obvious. It can really change drastically by small changes in demand, which I gave you the example there.
Jeff Osborne -- Cowen and Company -- Analyst
I appreciate that. My follow-up -- and correct me if I'm wrong, but I think you're allowed to, under the IRA export U.S. manufactured goods, to international jurisdictions. Is that something you're already doing or do you intend to do in 2024?
Badri Kothandaraman -- President and Chief Executive Officer
Not doing today, but of course, will consider.
Operator
Our next question will come from Julien Dumoulin-Smith with Bank of America.
Julien Dumoulin-Smith -- Bank of America Merrill Lynch -- Analyst
I just wanted to pivot to a slightly different direction here, right? So you have a few of these exclusive deals across a number of different customers, but some larger ones, if you will. I'm curious, how do you think about how "locked in" those are going into the next year? And how are you think about working together realistically as partners, optimizing your value proposition while dealing and addressing with their respective needs, which are clearly and likely dynamic, especially given the backdrop in California. If you can speak to that, those dynamics? I know I'm not trying to get into the contract specifics here, but really working with them, if you will, and how you think about how locked in that portion of volumes are.
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, I presume you're talking about one large customer here that's the only one we have, which is official. The -- we love our partners, right? We work very closely with them. We value their relationship a lot.
And we are there -- I mean, we are at their service all the time, whether it's quality, whether it's customer experience, we value their relationship a lot. So yes, of course, we will be looking to renew all of those.
Julien Dumoulin-Smith -- Bank of America Merrill Lynch -- Analyst
Right. Yes. Fair enough. It's difficult to [Inaudible] too much.
And then, just coming back to all these different contract manufacturing relationships, I know they might not be identical here, but how do you think about underutilization costs here? I mean, what are the commitments like how flexible are the terms as you look at both flexing down and up the volumes through the course of the year here under these new arrangements?
Badri Kothandaraman -- President and Chief Executive Officer
Right. I did talk about it answering a prior question, and I will say the same thing here. We have great contract manufacturing partners. Flex has been great for us.
They particularly helped us when we were in trouble in 2017. We are grateful there. Our relationship has been very healthy. Even during these times.
And we are working together. Sometimes, we look at a problem and say, is this a short-term problem or a long-term problem? If it is going to cause them pain, we are willing to restructure. And all of those accounting are in our P&L. We report it as part of our non-GAAP and GAAP gross margin.
So you should read the P&L and know that everything is there. And we view this particular situation is temporary. But we are very cognizant of the fact that underloading is a pain for our contract manufacturing. So -- and we think the right approach is to make sure both of us are profitable and share the pain.
And we will be doing that.
Operator
And our next question will come from Andrew Percoco with Morgan Stanley.
Andrew Percoco -- Morgan Stanley -- Analyst
So I just wanted to come back to a prior question. So it's clear that the demand backdrop is going to be a tough demand backdrop potentially for the next few quarters. Can you maybe just discuss the health of the average installer that is a recurring user of your equipment and their ability to manage through this period and transition to the TPO model? I think, there's been some challenges around working capital and tax equity. So just curious what you're seeing and what you're hearing from some of those maybe repeat buyers on the smaller scale side of the installer community?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, we only hear color from other industry news, but we do see some transition to the leasing model. We do see that clearly. For us, how does it affect us is we have some great partners.
We have Sunnova, great partner. John Berger is a close friend of mine. SunPower, Sunrun and other leasing partners. We do business with all of them.
They're all great partners. So for us, it is -- if loan moves to lease our business, I would say there could be some product mix issues, but business is nominally not affected. We have heard anecdotes from a few industry sources that installers in California that are many long-tail installers who aren't in business any longer, but we don't have any direct data there. So I can only tell you what I know.
The -- of course, I mean, it is a stressful time for them, and we are trying to help them with whatever we can, whether it leads or whether we can provide them some of the services like our Solargraf, etc., whether we can help them with NEM 3.0, their business. We are doing that. And that's the color that we have in general. We do business -- majority of the business we do is through distribution.
And the distribution, one of the ways we would see it is in our payment, right? If we were to do direct business with all the installers, which we don't. We do business with distribution partners. So therefore, we have one level a little bit away from direct relationship with the long tail installers.
Andrew Percoco -- Morgan Stanley -- Analyst
Yes, that makes sense. And the other questions -- my other questions have been answered.
Badri Kothandaraman -- President and Chief Executive Officer
Could you repeat the question -- OK.
Operator
Our next question will come from Tristan Richardson with Scotiabank.
Tristan Richardson -- Scotiabank -- Analyst
I appreciate all the commentary on '24 and really just thinking about the commentary you made around stabilization next year. Should we think that could there be a swing factor with some of the new markets you've entered, whether that's U.K., Greece, Denmark, even India, could that be a meaningful factor that could affect sort of the timing of that stabilization or present a growth wedge above kind of that 2Q time frame you're talking about?
Badri Kothandaraman -- President and Chief Executive Officer
Absolutely. We have a lot of vectors of growth and that's a great place for us to start. But we are -- in the color I gave you, we didn't assume all of that. But we have absolutely so many countries that we are -- we were not present even a couple of quarters ago like we have introduced in batteries and microinverters, actually, batteries, for example, in Austria, in Spain, U.K., as you correctly pointed out, Sweden, Denmark, Greece.
We have plans to introduce to about 15 countries in the fourth quarter. Microinverters alone, they are all new countries. So that's one vector. New geographies, very important for us.
But on the flip side, there, it does take some time to establish infrastructure there. You do need to build up your installer base. You do need to train them very well because our bread and butter is our installers. Therefore, we need to train them excellently.
And we need to win them one by one. And that is a process in itself. It can be as early as three to six months, but it can be over a longer time frame as well. We got several new markets in Asia that are also interesting for us, like, for example, Taiwan, Korea.
Indonesia, we are there today, but we are rapidly moving into IQ8. There are a few other smaller countries in Eastern Europe that we are going after. Small commercial. That's a very big one.
The small commercial in the U.S. is about 1 gigawatt. We are going to add that product this quarter. The small commercial opportunity in Europe is much bigger.
It's about 10-plus gigawatts and we are figuring out that one systematically because we can service that market less than 100 kilowatts with the products we have. So there, of course, pricing is something that we are looking there on how to be competitive in that segment, but we do have a lot of levers there on small commercial. So that is one more. The other one is EV charging.
EV charger. We just introduced our connected EV charger. That is a big deal. Now with everybody wanting to electrify, meaning their home, which is buying electric vehicles, electrified vehicles, for example.
The -- our product will work with solar plus batteries and it will help the homeowner optimize his bill. He can do green charging now. He doesn't need to spend money charging the vehicle from the grid. All he needs to do is to add about one type of investment, of course, he's got to do that, six to eight panels or six to 10 panels.
He needs to add it, if he buys an EV. And that is a huge opportunity. We are now following up and introducing these EV chargers in Europe, which is what I talked about. So early next year, we will have IQ EV chargers in Europe.
Then the other -- the other one is home energy management software, right? We're now beginning with Germany. We now have the ability to also connect to third-party EV chargers and heat pumps. So now, we can optimize the entire system, our solar, our storage, hopefully, our EV chargers soon, but in the meantime, third-party EV chargers, third-party EV -- I mean, third-party heat pumps and giving the homeowner one app, all in one app, optimizing his energy from his fingertips. So that's energy management software plus we have some hardware there, which we will eventually integrate into our gateway.
So we'll roll that out to all the countries, including the U.S. So we got a lot of vectors there, which is introduced solar plus batteries into many, many new countries worldwide. Introduced products for the small commercial markets worldwide, introduced IQ smart EV chargers, both in the U.S., which we have done and worldwide. Energy management software plus whatever hardware is required to manage heat pumps and third-party EVs worldwide.
So we have a lot of vectors. Of course, I did not include that in the color, which I gave, which is conservative from our perspective.
Operator
Our next question will come from Moses Sutton with BNP Paribas.
Moses Sutton -- Exane BNP Paribas -- Analyst
I just wanted to tag on to Andrew's comment about the [Inaudible] installer. Are you seeing stress outside of the California market? Are you seeing any sellers selling distributors asking for price concessions, maybe distributors asking for concessions on terms and receivables, just curious if you could give a little more color on the health of the Tier 4.
Badri Kothandaraman -- President and Chief Executive Officer
Yes, the -- I'm just clarifying the question. You want to know the health of the business outside California. Is that correct?
Moses Sutton -- Exane BNP Paribas -- Analyst
Specifically for the [Inaudible] for the small stores.
Badri Kothandaraman -- President and Chief Executive Officer
Specifically for the long tail, I mean -- yes, the color that I can give you is the non-California business as a whole is stabilizing right now. That's what we see. We see Q3 was 4% down from Q2. And the first three weeks of Q4, which is the last three weeks of this quarter, also not too bad.
In fact, it's a little bit up. So we think the non-California business is pretty decent. But of course, it is still down from the high levels that we had by nearly 35%, meaning from Q4 of last year, Q4 '22, it's still down by nearly 30% to 35%. And your question is how is the health of the long tail -- it's a similar answer for us.
We work with our business, if you see 80-plus percent probably, maybe 75% is the long tail there. So we see all of them down, whether there are installers going out of business. We don't get that information, but I think we don't have that data. We do see the same trend, which is loans moving to leases.
All our partners are pretty great. Sunnova, SunPower, Sunrun, for us, it is moving from one hand to another hand like what I said. That's the color I can give you.
Moses Sutton -- Exane BNP Paribas -- Analyst
That's very helpful. And then, just any sense on Texas and Florida, in particular. I know outside California is averaging a little better, but maybe specifically those markets?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, they were disproportionately down because of -- because the utility rates aren't as high compared to the increase in the interest rates. So they were worst affected, but we see many of them in Texas and California -- I mean, Texas and Florida particularly moving to the lease model. We do see that like what you said.
And we do see that business starting to recover.
Operator
And our next question will come from Joseph Osha with Guggenheim Partners.
Joseph Osha -- Guggenheim Partners -- Analyst
Two questions. First, following on from the previous one, look, we all see Sunrun, Sunnova, SunPower accessing ADS or whatever markets for third-party ownership. I'm curious, do you know if your long tail has found any other solutions for third-party ownership? Or when you talk about that avenue, is it basically those three companies that you're seeing? And I do have one other question.
Badri Kothandaraman -- President and Chief Executive Officer
Majority is those companies, and there are a few smaller leasing companies that are coming up, too. But 90% is those three companies.
Joseph Osha -- Guggenheim Partners -- Analyst
OK. Great. And then, this is really more of a philosophical question. I know all of us on Wall Street just love to hear you talk about defending your gross margin.
But given how the market is evolving, have you done some analysis and are you sure that your business couldn't perhaps generate higher bottom-line earnings if you simply grew it more quickly and allow, say, a 35% gross margin? I'm just curious as to your philosophy as to why the gross margin has to stay where it is?
Badri Kothandaraman -- President and Chief Executive Officer
It is the eternal question. Can I grow faster if I drop prices, right? I mean, for us, it is pricing based on value. The moment we've stopped generating value, it is over. So that's why I never look at those in conjunction pricing.
I don't base it on cost. The moment you base it on cost, it's a problem. Then you forget about the value drivers. And therefore, the -- what that means is if we need to add value in both microinverters and battery and software.
And that's hard to do, but that's what we do thoroughly. Innovation is -- someone said it right in Silicon Valley, innovate or die. We are that company. That's our philosophy.
So we believe high quality is high volume and high price or the right prices or value.
Operator
And our next question will come from Vikram Bagri with Citigroup.
Vikram Bagri -- Citi -- Analyst
Very helpful color on demand and supply dynamic in countries in Europe. Badri, you mentioned you expect to recover a bit in your calculation of $300 million of inventory reductions over the next two quarters? Is that rebound? Is that a function of Enphase entering a number of new countries in EU this year, as you mentioned, and gaining market share in existing markets, such as Germany, or the outlook for inventory reductions assumes that the base demand rebounds in first quarter. And on top of that, you gained market share in new, as well as sort of like existing markets. And then, if you can talk about the U.S.
market also, it seems like you're looking to defend market share. You haven't seen any declines in market share so far. But if there were some, you will look to defend that.
Badri Kothandaraman -- President and Chief Executive Officer
Yes. I mean, we already told you that we aren't assuming the demand picture changing from the current levels in our assumptions. And basically, I'm not here to give guidance for Q1, but I'm just giving you a general color for Q1. So all our assumptions are based on demand picture not changing in the next -- demand picture not changing from what it is today.
So that's what we said in our assumptions. Then your question is on U.S. U.S. for us is -- we work with a lot of customers.
We -- this is the time where our partnerships like what I said, are a lot deeper. Every one of our executives is always on the road visiting customers. Every opportunity to gain market share, we are all over it. And like what I said, we have a number of tools.
Yes, of course, it's defending against competition. All competition is very important for us. We take everybody seriously. We work on our problems.
We fix our problems. Our customer service, you see many people simply stick to us for our quality and customer experience. Our Net Promoter Score is 78 in the U.S. We are opened 24/7, our call center.
We have field service technicians who will show up in your home tomorrow if you have a problem today, right? So we have a -- if you put the total picture together, it's innovation, quality and customer experience. Now we have one more fact that we have. We can give people a made-in-America products. Now we do have that many of our installers love it because they -- for example, we just had -- in Flex, we -- in South Carolina, President Biden came and inaugurated that plant, and we have a lot of installers there, including not just installer partners, distribution partners.
So it is very important for them. Made in America product right there in South Carolina, right there in Arlington, right there in Wisconsin. It is there. So we think that will help, too.
And we are going to -- in a similar vein, we're going to bring in our batteries as well in the U.S., and we will take advantage of the domestic content there. And so, that will provide extra help to some of our leasing partners. So yes, we are always working on market share. We always take competition seriously, not just right now.
This is how we do business.
Vikram Bagri -- Citi -- Analyst
And as a follow-up, I wanted to quickly follow up on the capital allocation question earlier in the call. I was wondering if your priorities have changed given where the stock price is today. I see you repurchased about $110 million in shares versus $122 million of free cash flow this quarter. Should we expect similar trend going forward, share buybacks closely following free cash flow generation in quarters?
Badri Kothandaraman -- President and Chief Executive Officer
Yes. Well, I mean, we have a lot of cash like what you pointed out, $1.8 billion. We have shown that we are willing to buy back stock in a disciplined fashion. We have bought back stock in the last couple of quarters.
I think, we have bought back $310 million in total, $110 million in Q3 and $200 million in the prior quarter. I think, this is an opportunistic time for us where we can take advantage of the stock price. So we will be opportunistic about it.
Operator
And our next question will come from Praneeth Satish with Wells Fargo.
Praneeth Satish -- Wells Fargo Securities -- Analyst
I guess, I wanted to ask about Tesla's new Powerwall 3 offering and maybe what are kind of the puts and takes there comparing that against your IQ8 and 5P battery. And I guess, do you anticipate any market share changes when this product is launched next year?
Raghu Belur -- Chief Products Officer
This is Raghu. And Badri mentioned earlier on, look, competition is not new to us. And any company out there that's doing string inverters, we have been competing against those since the inception of the company, and we have a very, very strong value proposition against that technology, a technology that we've been fighting against since 2008. So if you think about it, if you break it down, we just produce more energy.
We do maximum power point tracking on a per-module basis, right, because we have -- we do power conversion right at the module itself. We are much more reliable. We don't have a single point of failure, that's a true value of the distributed architecture. So even if one of our micros or the module or to -- were to fail or get impinged on energy, the rest of the system continues to operate.
String inverters on the other hand, are a very significant single point of failure of that string inverter would fail, our entire system is dead. Again, if you look at also design, installation and maintenance, we don't have string designs anymore. Like those string designs are a thing of the past, those things went away in 2012. And with us, you don't have to do any stringing, no string design, no limitation, so you can put as much new modules as you like, installation is all plug-and-play.
And maintenance, we provide you with per module information, right? And with the traditional string inverters, you're completely blind to how your modules are performing. So I think that's going backwards. And finally, and arguably one of the most important elements of it is safety, right? You want to do -- you don't want any high-voltage DC anywhere in the system. And so, with Enphase, we are all low voltage DC, we are traditional AC.
And the combination of high-voltage DC and high-energy chemistry is probably not very optimal. And on the reliability front, we mentioned, one is system-level reliability, which is not having a single point of failure. But look, our unit itself is extremely reliable. We offer a 25-year warranty compared to other types of technologies that offer 10-, 12-year warranties.
And on the battery, if you break the battery down as well, modularity is extremely important. You don't need to have very large batteries and you have the -- where we are building block is 5kwh. So you can rightsize the system to exactly what the homeowner needs. But we mentioned the higher power of our third-generation battery our IQ battery 5P, the high C-rate of the battery is really is an economic benefit to the homeowner because you can export significant amounts of power during those times of the day or those times of the hour where you get compensated by the utility for exporting energy.
And finally, on safety, we use lithium iron phosphate, LFP chemistry, right? LFP chemistry is arguably much safer than any other chemistry that's out there. Put all that together, look at it in the totality of the system, right, all the software that we provide, the design tools that we provide, those are the competitive moats against any other technology that is out there. Now couple that with our customer service, right? We are open 24/7. Our customer service department is open 24/7.
We -- the installer can call us at any time. The homeowner can call us. They have beautiful app where they see their solar, their batteries. Now even there with the connected EV charger, they're seeing how the EV is doing.
If you have a VPP program right from the app itself, we can sign up for the VPP program. We really bring a comprehensive solution that is completely differentiated, distributed architecture on inverters, the battery arguably one of the safest batteries, connected EV chargers and a complete system solution for the homeowner and of course, a great customer experience. So take any -- we have a very competitive solution. And like I said, competition is not new for us at all.
Praneeth Satish -- Wells Fargo Securities -- Analyst
That's very helpful. I guess, just quickly switching gears to California. I just wanted to -- you mentioned that you're educating installers about NEM 3.0, the payback is six years, maybe down to five years with some of these rate increases. You've got the Solargraf software where you're kind of automating a lot of the calculations for installers.
But despite all this, and it all sounds good on paper. But despite all this, that the permits are just -- they're moving down week on week, right, in the wrong direction. So I'm just trying to understand if there's anything else you can do to simplify the process and help convert some of the leads to signed contracts? Or is it just -- is it rates? Or is it just waiting for time, waiting for just macro to improve a bit?
Raghu Belur -- Chief Products Officer
It starts waiting, right? It's our -- we have to go out there. And we and the rest of our industry needs to get out there and continue educating our installer partners, helping our install partners educate the homeowner, that's what it's going to take. And I think, all the tools are there, everything is ready. But most importantly, the economics are there, right? It's simply getting in front of the homeowner, getting and convincing them, showing them the numbers, showing them using a tool like Solargraf and showing them what a solar install of the house would look like, the size of the battery that they would require and then showing them the payback period that it's anywhere from five to seven years and getting better as utility rates continue to improve.
So I think, we are all doing the right things. We are getting out there and at least Enphase, we are getting out there and I'm sure our competition is also getting out there and educating both installers and customers and so we expect -- yes, we expect it's simply a matter of time. I think, you'll see -- you'll see the California market turnaround as well.
Operator
This concludes our question-and-answer session. I would now like to turn the conference back over to Badri Kothandaraman for any closing remarks.
Badri Kothandaraman -- President and Chief Executive Officer
Yes. Thank you for joining us today and for your continued support of Enphase. We look forward to speaking with you again next quarter.
Operator
[Operator signoff]
Duration: 0 minutes
Call participants:
Zach Freedman -- Head of Investor Relations
Badri Kothandaraman -- President and Chief Executive Officer
Mandy Yang -- Chief Financial Officer
Brian Lee -- Goldman Sachs -- Analyst
James West -- Evercore ISI -- Analyst
Eric Stine -- Craig-Hallum Capital Group -- Analyst
Raghu Belur -- Chief Products Officer
Colin Rusch -- Oppenheimer and Company -- Analyst
Philip Shen -- ROTH MKM -- Analyst
Mark Strouse -- JPMorgan Chase and Company -- Analyst
Steve Fleishman -- Wolfe Research -- Analyst
Jeff Osborne -- Cowen and Company -- Analyst
Julien Dumoulin-Smith -- Bank of America Merrill Lynch -- Analyst
Andrew Percoco -- Morgan Stanley -- Analyst
Tristan Richardson -- Scotiabank -- Analyst
Moses Sutton -- Exane BNP Paribas -- Analyst
Joseph Osha -- Guggenheim Partners -- Analyst
Vikram Bagri -- Citi -- Analyst
Praneeth Satish -- Wells Fargo Securities -- Analyst