What it costs, what's permitted, and what to ask before you hire.
Last verified: 2026-05-30 · Data building
Likely first step
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Panel / electrical
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Complexity
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Permit likelihood
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Rebate sensitivity
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Best first call
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Utility impact
Electric & gas: Con Edison
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Cost snapshot
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Incentive snapshot
Section 25D Residential Clean Energy Credit (battery storage)
Expired Dec 31, 2025. For 2023–2025: 30% of total installed cost, no cap (battery capacity at least 3 kWh). EXPIRED: This federal credit ended Dec 31, 2025 under the One Big Beautiful Bill Act (Public Law 119-21, signed July 4, 2025). Expenditures made after Dec 31, 2025 do not qualify — for §25D, the IRS treats the expenditure date as the date the installation is placed in service (completed), not the date of payment. A homeowner who paid a deposit in 2025 but whose system was placed in service in 2026 does not qualify. For installations placed in service during 2023–2025, the credit applied to battery storage systems with a rated capacity of at least 3 kilowatt-hours installed in a U.S. home used by the taxpayer as a residence (existing homes and new construction; principal residence not required; rentals not occupied by the taxpayer did not qualify). Standalone batteries (not paired with solar) were explicitly eligible from Jan 1, 2023 onward. The credit was nonrefundable with carryforward. Homeowners with eligible 2025 placed-in-service installations may still claim the credit on their 2025 federal tax return. Verify with a qualified tax professional.