PG&E Service Area · San Mateo County
Solar Panels in San Mateo, CA
San Mateo is a central Peninsula city along Highway 101. The area experiences moderate marine layer influence with reliable solar production. Homeowners in San Mateo on PG&E pay an estimated $220/mo in electricity — solar can cut that dramatically. Get a free, no-obligation quote from a licensed local installer today.
* Electricity bill figures are regional estimates only, not guarantees.
Solar in San Mateo — Local Estimates
These are illustrative regional estimates — not guarantees. Your actual savings depend on usage, roof orientation, shading, system size, and future utility rate changes.
- Avg monthly bill*
- $220
- Typical system size*
- 7.5 kW
- Est. year-1 savings*
- $1800
- Est. payback period*
- 7 yrs
Why Go Solar in San Mateo?
- ●High sun exposure: San Mateo averages an estimated 5 peak sun hours per day — strong solar production potential year-round.
- ●High PG&E rates: PG&E customers pay an estimated $0.44/kWh, making solar economics strong. PG&E residential blended rate (E-TOU-C tier, 2025-2026 range). High rates make solar economics strong despite marine layer influence common on the Peninsula.
- ●Federal tax credit: The 30% federal solar Investment Tax Credit (ITC) is currently available for systems installed on primary residences. Consult a tax professional for your specific situation.
- ●Home value: Studies suggest homes with owned solar systems sell for more than comparable homes without — though results vary by market.
Local Details for San Mateo
Utility Rate
PG&E: Estimated $0.44/kWh residential rate. PG&E residential blended rate (E-TOU-C tier, 2025-2026 range). High rates make solar economics strong despite marine layer influence common on the Peninsula.
Permit Office
San Mateo County Planning and Building Department / Individual City Building Departments (San Mateo County / individual cities). Typical turnaround: 2-4 weeks; some cities adopting SolarAPP+. Redwood City, San Mateo, Daly City, and other cities have their own building departments. Unincorporated areas fall under San Mateo County Planning and Building. Several jurisdictions are adopting SolarAPP+ for expedited approval.
Climate Zone
Zone 3: Mild marine climate throughout the Peninsula. Coastal areas experience frequent marine layer, while inland areas (Redwood City, Menlo Park) see more sun. Moderate temperatures year-round with low cooling demand but reliable solar production.
Frequently Asked Questions — San Mateo
Do I need a permit for solar in San Mateo?
Yes. San Mateo has its own city building department with typical turnaround of 2-4 weeks. Your contractor handles the permit application.
Is off-grid solar worth it in San Mateo with PG&E rates?
Yes. San Mateo residents pay PG&E rates around $0.44/kWh. Off-grid solar with battery storage provides savings and backup power despite marine layer influence.
How much sun does San Mateo get for solar?
San Mateo averages around 5.0 peak sun hours per day in Zone 3. Marine layer is common, but the bayside location supports reliable solar production year-round.
How It Works
- 1Submit your info: Fill out the quick form — takes under 2 minutes.
- 2Get matched: We share your request with one licensed solar contractor serving San Mateo.
- 3Free consultation: Your contractor contacts you to assess your home and provide a no-obligation quote.
- 4Go solar: If the numbers work, move forward on your timeline — no pressure.