If you are getting quotes for a solar permitting service in El Cerrito, California, do not compare only the total price.

First separate the project into two approval tracks:

1. City of El Cerrito building/electrical permitting
2. PG&E interconnection and Permission to Operate (PTO)

A quote can look comprehensive while covering only one of those tracks.

First question: can the project use El Cerrito’s SolarAPP+ route?

El Cerrito currently offers automated SolarAPP+ review for qualifying residential rooftop PV and combined PV/energy-storage projects. The City’s published criteria include single-family residential, roof-mounted, new systems rather than upgrades/additions, PV and ESS at or below 38.4 kW, and specified service limits.

The City also states that its SolarAPP+ path is limited to licensed contractors. An owner-builder or DIY applicant should not assume this automated route is available.

See the City’s current Solar System Streamlined Permitting page.

If SolarAPP+ does not apply

The conventional permit path becomes the relevant City track. El Cerrito’s Building Permits page says building permits are required for electrical work and specifically directs Solar Projects, electrical upgrades associated with solar permits, and new Powerwalls to its solar-permit coordination channel.

See El Cerrito Building Permits and Applications.

Do not infer from “conventional review” that every project automatically needs the same engineering stamp. The exact structural or electrical professional requirement depends on the project and the City’s correction/submittal requirements.

Before paying a plan provider, ask the City or reviewer:

• Which permit path applies to this exact project?
• Which drawings/calculations are required?
• Is a structural calculation or stamp required for this roof/site?
• Which professional discipline must sign or stamp each required item?
• Are revisions included under the existing application or treated as a new submittal?

PG&E is a separate package

PG&E’s current solar guidance says the PTO process includes an Interconnection Application, single-line diagram (SLD), and final building permit. PG&E separately performs its interconnection/engineering review before issuing PTO.

PG&E also publishes standard SLDs for several common Rule 21 configurations, so a custom SLD should not be assumed necessary until the exact system configuration is checked against the current application path.

See PG&E Getting Started with Solar and PG&E Interconnections & Renewables.

What a permitting-service quote should itemize

Ask the provider to price these separately instead of selling an undefined “permit package”:

• City/AHJ plan set preparation;
• roof/site plan;
• electrical SLD;
• structural calculations and stamp only if required;
• equipment/spec-sheet assembly;
• City application/submittal support;
• correction/revision rounds;
• PG&E interconnection application support;
• PG&E correction/revision support;
• final-document/PTO handoff.

Also ask what is not included: City fees, SolarAPP+ fees, engineering stamps, PG&E fees, inspection coordination and resubmittals can be separate.

A $1,200 quote cannot be judged from price alone. It could be excessive for a simple standardized project or reasonable for a package that includes real engineering, stamps and multiple revision cycles. GridPermit cannot confirm fair market pricing without the project scope and deliverables.

Facts to collect before accepting a quote

Provide the provider with: rooftop vs ground mount; PV kW; battery kWh; inverter/PCS models; existing PV/storage; owner-builder vs licensed contractor; MPU/service change; point of interconnection; current City correction notice; and PG&E application status.

That lets you compare providers on the actual missing work, not on a generic package name.

GridPermit is an independent educational permitting/interconnection guide, not the City of El Cerrito or PG&E. First-party pages above were reviewed September 9, 2026. Confirm the live City and utility requirements for the specific project before submitting or paying for professional services.