 saves money, reduces power costs, and it cuts emissions. Right now, just like much of the tax code, the rules are totally arcane. Mr. Biden's so-called Inflation Reduction Act provided for an energy-efficient home improvement tax credit that was tiny, about $1,200. Now, I know that's going to bring up the next question. If you want to install exterior windows, energy-efficient, the credit is limited to a paltry $600. So that helps cover the cost of maybe one window.