Local knowledge / Solar permitting
Solar permitting,
without the guessing.
Local permit requirements. Utility approvals.
The official sources behind your next step.
City-level research. No address or contact details required.
Choose your next step
Where are you
in the process?
Pick the point that matches your project. We will point you to the facts that matter now.
Start with location
Find the local authority and utility.
Search published city, county and utility guidance before building a checklist.
Find your local guideBuild the package
Check documents, eligibility and fees.
Use a locality guide to separate confirmed requirements from items that still need an official check.
Browse permit guidesAfter installation
Review the recorded inspection sequence.
See what the official sources say, then confirm the current booking and correction process with the authority.
Find inspection guidanceUtility track
Permit approval is not permission to operate.
Use the utility path to find interconnection and PTO guidance for your project.
Understand permit vs. PTO01 / Know your path
City permit.
Utility approval.
Not the same thing.
The installation.
Your city or county handles the permit and local inspection requirements. Start with the authority named in your guide.
The connection.
Your electric utility handles interconnection and permission to operate. A building permit does not replace utility approval.
02 / Start locally
Every place.
Its own requirements.
Find the guidance we have published for your location. Where research is incomplete, we say so.
03 / Evidence, not assumptions
Know what is verified.
See what is not.
Read the permit facts alongside their sources, access dates and confidence notes. Check the local authority's current requirements before making a project decision.
Find your local guideOptional / Illustrative toolCalifornia system-sizing estimator
California system-sizing estimator
A separate, smaller tool from our permit guides above: a quick, clearly-labeled illustrative estimate for California ZIP codes only. Not a substitute for a real utility rate lookup or installer quote.
Enter a California ZIP Code
Takes only 30 seconds • No contact info required • California ZIP codes only