Guides

Plain-English answers to the questions behind PanelCensus's data, each sourced to the agency records and linked to the pages that answer them.

• How much do solar panels cost in your state? What installation records showWhat home solar actually costs per watt and per system in each state, from millions of recorded installations, and why your quote may differ.
• How to check a solar installer's track record before you signHow to vet a solar installer before signing: how many systems it has installed, where, since when, at what price, plus license and contract checks.
• How to find out who owns a solar farm near youHow to identify the owner and operator of a solar farm from federal EIA-860 and USGS records, what MWac and MWdc mean, and where the records fall short.