Explore the directory

Solar Permit Guides
by State.

GridPermit has research on file for all 50 states. 44 states have at least one guide that's cleared our bar to publish. The rest have real research in progress that hasn't yet met that bar. We say so plainly rather than filling gaps with guesses. See our Methodology for exactly what "published" requires.

50States With Research on File

44States With Published Guides

351Total Published Guides

298Published in California Alone

Filter this directory

States with published guides

Research in progress

These states have real locality records on file, but none has yet reached the completeness and source-verification bar GridPermit requires before publishing a guide. Check back, or use search to see exactly what's on file today.

Decision guides for permit and PTO problems

Use these when the question is not just “what does my city require?” but “which approval path am I actually on, what changed, and who owns the next step?” Each guide is tied to current first-party utility or SolarAPP+ sources.

Permit Path CheckerChoose a researched jurisdiction and flag battery, MPU, ground mount, existing PV, owner-builder or equipment-change facts before deciding where to file.Installed solar, but no PG&E PTOFind the missing interconnection milestone, document, owner and submission date before paying someone to fix PTO.Adding a battery to existing SCE solarSeparate the AHJ permit path from SCE interconnection and check whether the proposed configuration changes the application.Can this project use SolarAPP+?Check storage, MPU, existing PV, homeowner installation and ground-mount eligibility before choosing the submission path.City permit vs utility interconnection/PTOUnderstand why a passed local inspection does not necessarily mean the utility process is complete.Long Beach solar + ESS permit rejectedDetermine whether the project should be on the Express route or full plan review, and identify the exact professional-document requirement before hiring a plan provider.PG&E zero-export solar + batteryClassify the Rule 21 non-export path before assuming which application, fee or review process applies.California plug-in solar / SB 868 statusCheck whether the proposed 1,200 W plug-in solar exemption is actually law before relying on it for a current project.El Cerrito permit-plan service quoteSeparate SolarAPP+ eligibility, City plan/engineering scope and PG&E interconnection work before paying for a permit package.EPE solar field inspection failedSeparate the AHJ final from EPE field inspection and compare approved metering drawings with the as-built layout before authorizing a correction.

Solar Permit Guidesby State.

States with published guides

Research in progress

Decision guides for permit and PTO problems

Solar Permit Guides
by State.