Solar Panel Cost in Gilroy, CA (2026): $4.58/W Reported

Gilroy homeowners who bought their own solar systems reported a median of $4.58 per watt between January 2025 and May 2026, across 177 systems. The middle half paid $3.07 to $4.58 per watt.

A 5.41 kW system, the median size connected in Gilroy in 2025, comes to about $24,800 at that median, or $16,600 to $24,800 across the middle half.

Those are reported costs, not a quote, and no federal credit comes off a Gilroy system finished in 2026: 26 U.S.C. §25D does not cover one whose installation is completed after December 31, 2025 (state and federal rules).

Median reported cost: $4.58/W; Gilroy addresses, 177 systems
Middle half: $3.07 to $4.58/W; 25th to 75th percentile
Typical 5.41 kW system: $24,800; 5.41 kW × $4.58/W, before any incentive
Same system, middle half: $16,600 to $24,800; size: Gilroy addresses, 2025 median

Source: California Distributed Generation Statistics (CPUC), Interconnected Project Sites data set, data through May 31, 2026, checked September 24, 2026. Homeowner-owned, solar-only systems of 1 to 25 kW; leases, PPAs and battery systems are left out (method). The CPUC notes these costs are not verified by the government.

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What a solar permit costs in Gilroy

Gilroy's published permit fee for a home rooftop system is $450 (solar PV permit, residential, 15 kW or less). Energy storage: $103.27 permit plus $146.77 inspection.

That is exactly the $450 limit that Government Code §66015 sets for a home system up to 15 kW.

What Gilroy publishes: Gilroy's SolarAPP+ page lists the City's solar photovoltaic permit fee at $450.00 for a residential system of 15 kW or less and $500.00 plus $15.00 per kW above 15 kW for a larger one. An energy storage system adds a $103.27 permit fee and a $146.77 Building Division inspection, and a system over 50 kWh also needs a $260.00 Fire Prevention inspection. SolarAPP+ charges its own processing fee, and a revision submittal is $137.03 plus hourly staff time.
How to file: Yes. Eligible residential, roof-mounted retrofit systems go through SolarAPP+ for instant permitting. The City says a rooftop system of 38.4 kW or less needs a City building permit but no separate planning or fire review. Inspections are requested online or by email and are scheduled about 72 hours out.
Automated permit platform: SolarAPP+

Sources: City of Gilroy, SolarApp+ for Residential Solar Installers, checked September 23, 2026; California Energy Commission, Residential Solar Permitting Program data (SB 379 platform status as self-reported by each jurisdiction; data last updated August 3, 2026), checked September 23, 2026; Gov. Code §66015, checked September 24, 2026. Gilroy in the California Solar Cost Index sets this fee beside every other city's.

Solar in Gilroy: installs, leases and batteries

Home solar systems connected at Gilroy addresses: 364 in 2021, 610 in 2022, 769 in 2023, 398 in 2024 and 435 in 2025. So connections peaked in 2023 and 2025 ran 43% below that peak. Another 119 were connected from January to May 2026.

Of the 435 systems connected in Gilroy in 2025, 44% were leased or on a PPA, so a solar company owns them, and 56% belonged to the homeowner. 51% had a battery, about as often as the 55% statewide. The median Gilroy system was 5.41 kW, and 67 companies connected at least one.

Gilroy beside Santa Clara County and Statewide, 2025
	Gilroy	Santa Clara County	Statewide
Systems connected in 2025	435	6,416	145,404
Leased or on a PPA	44%	30%	45%
With a battery	51%	54%	55%
Median system size	5.41 kW	6.48 kW	6.15 kW
Median reported cost	$4.58/W (177)	$4.58/W (3,143)	$4.14/W (58,628)
Companies connecting systems	67	310	2,475

Source: CPUC DG Stats, data through May 31, 2026. Counts are home systems given permission to operate each year; a city means the service city on the application.

Your utility: PG&E

Gilroy is billed by Pacific Gas and Electric Company (PG&E). PG&E's average residential rate is 33.7¢/kWh (June 2026 (unchanged since March 2026); rate tracker).

Silicon Valley Clean Energy supplies generation for many Gilroy addresses while PG&E delivers and bills; your bill shows which. Source: Silicon Valley Clean Energy, About (communities served).

Before you compare proposals

The Gilroy project checks that change the decision

Gilroy publishes its full set of solar permit fees, including separate storage fees, so the permit line in a Gilroy quote can be checked to the dollar. Silicon Valley Clean Energy supplies generation and settles credits monthly.

Ask the same three questions

Does the permit line match $450.00 for a system of 15 kW or less, and does it add the $103.27 storage permit and $146.77 inspection if a battery is included?
If the battery is over 50 kWh, is the $260.00 Fire Prevention inspection in the quote?
Does the bill estimate follow SVCE's monthly settlement for generation and PG&E's annual true-up for delivery?

Local checks

Every fee published

Gilroy's SolarAPP+ page lists $450.00 for a residential system of 15 kW or less, $500.00 plus $15.00 per kW above that, a $103.27 storage permit, a $146.77 storage inspection and a $137.03 revision fee.

No planning or fire review

A rooftop system of 38.4 kW or less needs a City building permit but no separate planning or fire review; fire-code items are checked in plan check and inspection. Batteries over 50 kWh need a Fire Prevention inspection.

Inspections 72 hours out

The City books building inspections about 72 hours ahead, by the online request form or by email, and can charge a reinspection fee for a same-day cancellation or a missed inspection.

Related decisions

Local sources and limits

City of Gilroy — SolarApp+ for Residential Solar Installers — verified 2026-09-23. City fees: residential PV $450.00 at 15 kW or less, $500.00 plus $15.00 per kW above; ESS permit $103.27 plus $146.77 Building Division inspection; ESS over 50 kWh adds a $260.00 Fire Prevention inspection; revision submittal $137.03 plus hourly rate. Rooftop systems of 38.4 kW or less need no separate planning or fire review. Inspections scheduled 72 hours out; reinspection fee possible for same-day cancellation or a missed inspection.
Silicon Valley Clean Energy — About (communities served) — verified 2026-09-23. Serves Campbell, Cupertino, Gilroy, Los Altos, Los Altos Hills, Los Gatos, Milpitas, Monte Sereno, Morgan Hill, Mountain View, Saratoga, Sunnyvale and unincorporated Santa Clara County.
Silicon Valley Clean Energy — Solar Billing Plan — verified 2026-09-23. SVCE generation settled monthly with credits rolled forward, PG&E delivery at PG&E's annual true-up; spring cashout by check at $100 or more, up to $5,000, smaller amounts as bill credit; GreenPrime surplus valued at an extra $0.017 per kWh in the monthly rollover.
California Energy Commission — Residential Solar Permitting Program data (SB 379) — verified 2026-09-23. Self-reported platform status per jurisdiction, data last updated August 3, 2026; the CEC says it does not certify compliance. Rows used for the Tier 3 cities: Santa Clara, Clovis, Berkeley, Concord, Richmond, San Clemente, Encinitas, San Marcos, Lakewood, Elk Grove, Mission Viejo, Victorville, Tulare, Yucaipa, Rocklin and Grass Valley (SolarAPP+); Glendale and Santa Barbara (custom platform); Saratoga and Vacaville (Symbium); Napa (without a platform); Gilroy, San Ramon, Redding and Yuba City (SolarAPP+); Windsor and Ventura (Symbium); Redwood City and Cupertino (SolarAPP+); Hollister (without a platform, deadline Sept 2024).

Before you sign

In Gilroy the middle half of reported costs spans $3.07 to $4.58 per watt, and roof, panel work, equipment and contract terms explain most of that gap. California Solar Tax and Permit Rules for 2026 covers them, and the tax, lease and disclosure rules a Gilroy contract follows.

Frequently asked questions

How much does solar cost in Gilroy?

About $24,800 for a 5.41 kW system, at the $4.58 per watt median that Gilroy owners reported (177 systems, January 2025 to May 2026; middle half $3.07 to $4.58). Source: CPUC DG Stats. No federal credit applies to a Gilroy system finished in 2026.

What does a solar permit cost in Gilroy?

$450 for a home rooftop system on Gilroy's published schedule (checked September 23, 2026); the state limit is $450 up to 15 kW under Gov. Code §66015.

Which utility serves Gilroy?

Pacific Gas and Electric Company (PG&E). Its average residential rate is 33.7¢/kWh, as of June 2026 (unchanged since March 2026).

Sources

California Distributed Generation Statistics (CPUC), Interconnected Project Sites data set, data through May 31, 2026 — checked September 24, 2026
CPUC, California Solar Consumer Protection Guide — checked September 24, 2026
26 U.S.C. §25D(h) and (e)(8)(A), residential clean energy credit — checked September 24, 2026
Gilroy solar permitting — City of Gilroy, SolarApp+ for Residential Solar Installers — checked September 23, 2026
California Energy Commission, Residential Solar Permitting Program data (SB 379 platform status as self-reported by each jurisdiction; data last updated August 3, 2026) — checked September 23, 2026
California Government Code §66015(a), residential solar permit fees — checked September 24, 2026
Silicon Valley Clean Energy, About (communities served) — checked September 23, 2026
PG&E average residential rate — CPUC Public Advocates Office, Q2 2026 Electric Rates Report, p.8, 20 — checked September 24, 2026

The tax, contract and permit rules every California city shares, with their statutes: California Solar Tax and Permit Rules for 2026.