The answer is confusing. I read this.. but having trouble finding what qualifies.
"The residential energy property credit, which expired at the end of December 2014, was extended for two years through December 2016 by the Protecting Americans from Tax Hikes Act of 2015. The Consolidated Appropriations Act, 2018 extended the credit through December 2017. The nonbusiness energy property credit expired on December 31, 2017 but was retroactively extended for tax years 2018, 2019 and 2020 on December 20, 2019 as part of the Further Consolidated Appropriations Act. On December 27, 2020, the credit was again extended through December 31, 2021, by the Consolidated Appropriations Act, 2021. The credit had previously been extended by legislation several times. See Notice 2013-70 for more information on this credit as well as the credit for alternative energy equipment. "
"Q. Who qualifies to claim a residential energy property credit? Are there limitations? (updated April 27, 2021)
A. You may be able to take these credits if you made energy saving improvements to your principal residence during the taxable year. In 2018, 2019 2020, and 2021 the residential energy property credit is limited to an overall lifetime credit limit of $500 ($200 lifetime limit for windows). There are also other individual credit limitations:
- $50 for any advanced main air circulating fan
- $150 for any qualified natural gas, propane, or oil furnace or hot water boiler
- $300 for any item of energy-efficient building property
The residential energy property credit is nonrefundable. A nonrefundable tax credit allows taxpayers to lower their tax liability to zero, but not below zero."
