Skip to content
Solar Learning Lab

Trust

Editorial policy

Every factual claim on this site must trace to a primary source: a government agency, a utility program page, a peer-reviewed dataset, or a state license board. Pages carry a last-verified date. When something changes, the page changes, and material corrections are logged in place.

Sourcing rules

  • Incentive facts come from the administering agency, not from other solar sites
  • Electricity rates come from the U.S. Energy Information Administration and utility tariff filings
  • System pricing comes from Lawrence Berkeley National Laboratory's Tracking the Sun dataset and comparable primary research
  • License and complaint data comes from the state boards that hold the records, with lookup links published
  • If we cannot verify a number, we do not publish it. Gaps are labeled as gaps

Freshness

Solar policy is moving fast right now. The federal residential credit ended for systems completed after December 31, 2025, and state programs are adjusting around it. Incentive pages get re-verified on a schedule, rate data updates when EIA publishes, and every data page shows when its numbers were last checked.

Use of automation

We use software to pull data from public sources, to check pages for staleness, and to assemble drafts. People decide what gets published. Nothing goes live on the strength of a model's output alone, and no page exists just to rank. If a page does not help a homeowner make a decision, it does not ship.

Corrections

Found an error? Email corrections@solarlearninglab.com with the page and a source. Material corrections are made in place with a dated note. We would rather fix a number than defend it.