Solar Companies in Hayward, CA: Who Installed the Most Systems in 2025

Installers who connected the most home solar systems in Hayward in 2025

Counts from utility records, not a ranking or endorsement. Check each license's status and complaint history on the CSLB's Check a License page (checked Sept. 24, 2026).

Source: California Distributed Generation Statistics (CPUC), Interconnected Project Sites data set, data through May 31, 2026 (checked Sept. 24, 2026).

Home solar in Hayward by the numbers

PG&E approved 609 home solar systems in Hayward in 2025, from 92 installers; the top three were named on 53% of them. The busiest year since 2021 was 2023, with 1,009 (2025: -40%). Another 210 were approved from January through May 2026.

2025 mix: 48% leased or on a power purchase agreement, 52% owned by the household; 62% with a battery; median size 5.33 kW DC. Alameda County: 33% leased or PPA, 53% with a battery, median 5.79 kW.

Hiring a solar company in Hayward

Solar companies in Hayward can file home solar permits through SolarAPP+; the City's March 2025 permit log lists 25 SolarAPP+ photovoltaic permits that month. Two local checks come first: that the address is in Hayward rather than unincorporated Alameda County, and whether it sits in the Airport Safety Zone, which needs an FAA glare review. Ava supplies Hayward's generation and PG&E delivers it. Compare at least three written bids.

Hayward's airport glare rule

Hayward's solar checklist has a section on aviation. The City notes that some installations near the airport could affect the vision of pilots, air traffic controllers and passengers, or interfere with VHF radio. So before applying, you check the City's web map for two things: that the address is within Hayward and not unincorporated Alameda County, and whether it lies in the Airport Safety Zone.

Inside the zone, the applicant prepares a glare study, using the FAA's Solar Glare Hazard Analysis Tool, to go with FAA Form 7460-1, and submits the package to the FAA. The City processes the permit only after it receives the FAA's finding of No Hazard. Outside the zone, the application proceeds normally.

Mounting, inspection and Ava's solar rules

The City's checklist says flush-mounted panels do not need structural calculations, but panels tilted steeper than the roof do, to verify wind resistance, and those calculations must be stamped and signed by an engineer and are reviewed at hourly rates. At the final inspection, the permit holder provides a safe ladder rated for at least 250 pounds that extends 3 feet above the roof and is secured, and the home must be open so the inspector can check smoke and carbon monoxide alarms; a signed self-certification can be offered instead.

For the bill, expect Ava's Solar Billing Plan terms: residential solar customers must move to E-ELEC, and Ava tops up the export credit by 2.5 cents per kWh in the 3-to-8 p.m. window (1 cent on every exported kWh for CARE and FERA households). A Hayward bid that counts that bonus on midday exports is overstating it.

What a Hayward quote needs to explain

A comparison to ask for

If you live near Hayward's airport, ask each bidder to check the City's map for the Airport Safety Zone before quoting a start date. Inside the zone, the City will not process the permit until the FAA has reviewed a glare study with Form 7460-1 and issued a finding of No Hazard.

Verify the company behind the Hayward quote

Match the business name and license number on each Hayward proposal to the CSLB record, then use our contractor verification steps, the quote comparison guide and the PPA, loan, lease and cash comparison. What you pay the utility today is on the Hayward rates and bills page.

Hayward solar quote questions