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Home backup batteries, solar plus storage, sizing, installer quotes and state-by-state incentives.
Federal note: the 30% residential clean energy credit (25D) does not apply to systems installed after December 31, 2025 (IRS). State and utility programs vary.
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More guides
Home backup battery cost in 2026 (after the tax credit ended)
Can a power station back up your house? (Powerwall vs portable)
How big a home battery do you need? (calculator)
Solar plus battery backup: is it worth it in 2026?
Solar
Off-grid cabin solar and battery system sizing
Solar
South Dakota home battery and solar incentives
Solar