On tax day, it is worth noting some of the programs available to make some of these expenditures a little more affordable. Beginning in 2023 battery storage joined solar, wind, and geothermal power generation, solar water heaters, and fuel cells as eligible technology for the Clean Energy Tax Credit. Between now and 2032 this is a 30% of cost tax credit with no annual maximum or lifetime limit! This can go along way to adding capacity to your partial or whole home battery storage system. For more information the IRS and Department of Energy have some excellent resource pages.