Here's a quick summary of how you might benefit from those credits:
Home electricity generation
Residential solar installations have boomed, and tax credits are a good reason for it. The Solar Energy Industries Association estimates that 97% of all U.S. solar installations are for residential customers. Solar accounted for more than half of new electricity generation capacity in 2023; by 2050, the trade organization believes it will be the largest source of generation in the U.S. Already, 7% of U.S. homes have some degree of solar generation capacity; the figure is expected to double by 2030.
Primary homeowners can receive a tax credit to cover 30% of the costs of installing solar power, including systems that add batteries to the mix; residential battery installations jumped in the first quarter of 2024, up 48% from the first quarter of 2023.
Typical costs for a residential solar system range between $27,000 and $32,000 -- enough for a substantial tax credit. It's also worth noting that the tax credit can be applied to other forms of renewables, such as geothermal, wind, and fuel cell technologies (although they're much less common than residential solar power).
You'll need to fill out IRS Form 5695 to claim the credit when you file taxes.
Energy efficiency
As one of the potential unsung heroes of the transition to a low-carbon economy, energy efficiency has been addressed in the tax code, as well. The U.S. Department of Energy estimates that households waste between 10% and 20% of annual energy costs because of inefficient consumption.
Poor insulation is a major culprit when it comes to wasting energy, and the federal government offers a 30% efficiency tax credit, up to a maximum of $1,200, for primary home improvements that include weather stripping, spray foam, caulk designed to air seal, or house wrap. The credit also can be used annually, with no lifetime limit.