Do not automatically subtract the old 30% homeowner credit from a new 2026 project
The former Section 25D Residential Clean Energy Credit ended for new residential expenditures after December 31, 2025. Home Solar Atlas calculators therefore keep new 2026 project cost before that expired federal credit unless you separately enter an incentive you have actually verified.
The transition date matters too: current IRS guidance says paying during 2025 does not preserve Section 25D when original installation is completed in 2026.
Utility & Incentives by ZIP
Find nearby residential utility plans, distributed-generation rules and active solar incentives before we model the tariff in the savings engine.
Browse solar data for all 50 states
State pages combine current EIA residential electricity rates with solar planning data and ZIP-specific tools. State and utility programs remain separate from the expired federal Section 25D homeowner credit.
What counts as a solar incentive?
- State or local rebates and grant programs.
- Utility-specific solar or battery programs.
- Property-tax or sales-tax treatment where applicable.
- Distributed-generation compensation such as net metering or net billing.
- Renewable-energy certificate programs and other performance-based incentives.
Program availability changes frequently. Home Solar Atlas keeps the API lookup and source verification separate from the core financial estimate so outdated programs do not silently change a homeowner's payback result.
Verify a program before putting it into payback math
Discovery is not the same as eligibility. Confirm the issuing agency or utility, current funding status, application deadline, installation timing, equipment requirements and whether the benefit belongs to the homeowner or a third-party system owner.