Decade after decade of false starts have finally brought us close to everyday electric cars. General Motors (NYSE: GM) and Nissan both rolled out plug-in electrics late in 2010, and Ford (NYSE: F) is now taking reservations on a plug-in version of its Focus hatchback. Monthly EV sales accelerated quickly last year but soon reached a plateau, and there are troubling signs that interest -- at least for the short term -- might be on the wane. Just 603 Volts and 676 Leafs left the lots last month, significantly lower than December's sales.

Why isn't the electric car catching on? Is it technology or infrastructure? There are reasons to ding batteries and charging stations, and I've already covered both. But there seems little wrong with the technology for moderate use, and early adopters have been vehemently supportive of the driving experience. Maybe a skeptical public is just zapped by the hype over electric that's been too much, too ambitious, and too soon.

Feeding the beast
EV hype has had major ups and downs since the Volt and Leaf were first announced. It's interesting to see various projections organized chronologically:

  • July 1, 2010: Volt Marketing Director Tony DiSalle confirms plans to produce 10,000 Volts for the U.S. in 2011, and 30,000 in 2012. The 2012 estimate was soon raised to 45,000.
  • Sept. 24, 2010: Nissan announces 20,000 U.S. reservations for the Leaf.
  • Nov. 16, 2010: Renault-Nissan CEO Carlos Ghosn projects sales of 500,000 Leafs per year within three years.
  • Jan. 21, 2011: Bloomberg reports that GM CEO Dan Akerson plans to increase the Volt's production capacity to 120,000 in 2012.
  • Jan. 25, 2011: President Obama calls on America to put a million electric vehicles on the road by 2015.
  • June 1, 2011: Nissan VP Al Castiganetti expects to sell 10,000 to 12,000 Leafs in the U.S. by year's end. This projection is accurate; 9,674 sold last year.
  • Nov. 4, 2011: Despite selling only 5,000 Volts to this point, Akerson appears on CNBC to reiterate 2010's projection of 45,000 Volts.
  • Feb. 1, 2012: January's sales totals come in.
  • Feb. 3, 2012: Chevrolet VP Alan Batey abandons earlier production estimates of 45,000 Volts, stating that GM would instead "balance supply and demand."

It's a bit dispiriting to see GM wave the white flag so early. Though battery fires created a public-relations black eye, the Volt was declared safe earlier this year. GM has been pushing "the car America had to build" in a media blitz ahead of retrofits that allow solo California drivers to use the Volt in carpool lanes.

But let's be realistic. To sell 45,000 Volts for the full year, GM would need to move more than 4,000 per month. Its largest monthly sales total was just over 1,500, and that came only last month.

Charting the future
Rather than just talk about the sales of Volts and Leafs, I've put together a few charts that better explain what's going on. Here's how each model's performed since the start of 2011:

Source: Monthly manufacturer sales reports.

Commentators will point to a fast leveling-off of sales after an early spike. But with so little data to go on, we're left with little more than a first year beset by production problems, political imbroglios, and unfortunate fires. To see how things progressed over the year, I charted cumulative sales for both models since the start of 2011:

Sources: Monthly manufacturer sales reports and author's calculations.

The situation seems to look better from this perspective, with steadily increasing sales and a flattening growth curve. Speaking of growth curves, I extrapolated various future sales estimates, based on a few different variables in the current numbers:

Sources: Monthly manufacturer sales reports and author's calculations.

Under the first two assumptions, the average sales of two time periods (either from the beginning of 2011 or the six-month period beginning with August 2011) were added to current totals on a monthly basis until the end of 2015. The third assumption simply expected each month to generate 5% more EV sales than the month preceding it. No scenario comes close to meeting President Obama's goal.

Of course, the Volt and Leaf won't be the only EVs in 2015. Ford will have the all-electric Focus and a Fusion Energi plug-in hybrid, which (like the Volt) will be able to run on gasoline after depleting its battery. Toyota (NYSE: TM) is also rolling out a plug-in Prius this year, and Tesla's (Nasdaq: TSLA) highly anticipated Model S is coming in the summer. Does this imminent influx of competition remind you of another recent auto trend? Remember, the Prius wasn't the only hybrid on the road for long.

Source: U.S. Department of Energy.

A few conclusions
Here's what I've learned through crunching these numbers:

  • The Volt and the Leaf combined have nearly double the first-year sales of the Honda (NYSE: HMC) Insight and Toyota Prius, the only two hybrids available in 2000.
  • More EV models will be sold in 2011 -- two years into major EV adoption -- than were sold until 2005, a full six years into the hybrid adoption curve.
  • If EV adoption is anything like the hybrid situation, we're more likely to see about 366,000 EVs on the roads at the end of 2015.
  • There were only 197,000 total hybrids at the same point in the adoption curve.
  • As many hybrids sold in 2005 as were sold in all prior years combined.
  • It's still really early in the EV adoption curve, and monthly data isn't enough.

Are EVs the solution to all our problems? No, but they're a step in the right direction. Predictions that aim for the moon and miss don't help, but politicians and executives are both known to exaggerate. Don't expect an EV revolution by 2015 -- but if hybrids are any guide, the five years that come after will be the real game-changers. EVs and hybrids are hardly cut from the same cloth, so the parallels won't be exact. But the early numbers aren't as dire as you might think, especially if you ignore unrealistic predictions and take a longer view.

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