Homeowners already could take a tax credit on up to 30 percent of the cost of a solar hot-water system installation, but the total amount was capped at $2,000. The economic stimulus bill, expected to be signed by President Barack Obama today, removes the cap.
This puts residential solar thermal systems on par with residential solar PV. Last year, a massive financial industry bailout bill renewed the federal tax credits for both solar PV and thermal for eight more years. However, a separate provision lifted a $2,000 cap on the federal tax credit for solar electric systems for homes.
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