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    Santa Clara County · Reported cost

    Solar Panel Cost in Santa Clara, CA (2026): $4.58/W County Median

    By Updated 8 sources citedSanta Clara, Santa Clara County

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    Homeowners in Santa Clara County who bought their own solar systems reported a median of $4.58 per watt between January 2025 and May 2026, across 3,143 systems. The middle half paid $3.42 to $6.11 per watt.

    Silicon Valley Power (SVP), Santa Clara's main utility, is not in the CPUC's interconnection data, which covers only PG&E, SCE and SDG&E. The figure above is the nearest one: Santa Clara County homes those three utilities serve.

    A 6.48 kW system, the median size connected in Santa Clara County in 2025, comes to about $29,700 at that median, or $22,200 to $39,600 across the middle half.

    Those are reported costs, not a quote, and no federal credit comes off a Santa Clara 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
    Santa Clara County, IOU-served homes, 3,143 systems
    Middle half
    $3.42 to $6.11/W
    25th to 75th percentile
    Typical 6.48 kW system
    $29,700
    6.48 kW × $4.58/W, before any incentive
    Same system, middle half
    $22,200 to $39,600
    size: Santa Clara County, IOU-served homes, 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 Santa Clara

    Santa Clara's published permit fee for a home rooftop system is $450 (photovoltaic building permit, residential, 15 kW or less). The schedule also lists a $463 Fire Prevention fee for a residential PV system; 3.37% technology fee.

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

    • What Santa Clara publishes: Santa Clara's Municipal Fee Schedule for fiscal year 2026/27, adopted April 21, 2026, lists a residential photovoltaic building permit at $450 for 15 kW or less plus $15 for each kW above, citing Government Code section 66015, and a separate Fire Prevention construction-permit fee of $463 for a residential solar photovoltaic power system. The schedule marks both as subject to its 3.37 percent technology fee. SolarAPP+ charges its own processing fee.
    • How to file: Yes. Licensed contractors can permit an eligible project through SolarAPP+, with energy storage limited to one battery of no more than 20 kWh, and must include Silicon Valley Power's interconnection agreement pre-approval letter. Projects that do not qualify are filed through the City's Permitting Online Portal (POP). The City inspects the installation either way.
    • Automated permit platform: SolarAPP+

    Sources: City of Santa Clara, SolarAPP+ (Building Division), checked September 23, 2026; City of Santa Clara, FY 2026/27 Municipal Fee Schedule, adopted April 21, 2026 (Building: Photovoltaic - Residential; Fire / Construction Permits: Solar Photovoltaic Power Systems - Residential), 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. Santa Clara in the California Solar Cost Index sets this fee beside every other city's.

    Solar data for Santa Clara: SVP is not covered

    SVP customers are not in the CPUC data, so nothing in it describes most Santa Clara homes.

    Across Santa Clara County homes served by PG&E, SCE or SDG&E, 30% of 2025 systems were leased or on a PPA, 54% had a battery and the median size was 6.48 kW.

    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: SVP

    Santa Clara is billed by Silicon Valley Power (SVP). The CPUC's average-rate reports do not cover SVP; read its own tariff and your bill.

    Before you compare proposals

    The Santa Clara project checks that change the decision

    Santa Clara is not PG&E territory. Silicon Valley Power, the city-run utility, bills most homes and still offers net metering, so a quote built on PG&E rates or on the Solar Billing Plan does not fit a Santa Clara bill.

    Ask the same three questions

    1. Is the savings estimate built on SVP's Schedule D-1 rates and its Rate Schedule NM, not on PG&E's rates and Solar Billing Plan?
    2. Has the installer obtained SVP's interconnection agreement pre-approval letter, which the City requires with a SolarAPP+ application?
    3. Does the quote include both City lines, the $450 building permit and the $463 Fire Prevention fee, plus the technology fee?

    Local checks

    SVP, not PG&E

    The California Energy Commission's service-territory map places about 99 percent of Santa Clara in Silicon Valley Power's territory. SVP's rates page lists its average residential rate at $0.182 per kWh as of January 1, 2026, measured its own way, so do not compare it directly with a PG&E average.

    Net metering is still open

    SVP offers net metering under Rate Schedule NM and says it has not reached the 5 percent threshold in Public Utilities Code section 2827. A successor tariff, if the City Council adopts one, may be priced differently from NEM 2.0 or NEM 3.0.

    Two City fee lines

    The fiscal year 2026/27 fee schedule lists a $450 residential photovoltaic building permit up to 15 kW, plus $15 per kW above, and a $463 Fire Prevention fee for a residential solar photovoltaic system, with a 3.37 percent technology fee on each.

    SolarAPP+ with one battery

    SolarAPP+ accepts storage of no more than one battery and 20 kWh. Larger or otherwise ineligible projects are filed through the Permitting Online Portal.

    Related decisions

    Local sources and limits
    • City of Santa Clara — SolarAPP+ — verified 2026-09-23. Licensed contractors only; energy storage limited to one battery of 20 kWh or less; the Silicon Valley Power interconnection agreement pre-approval letter is a required document; ineligible projects go through the Permitting Online Portal (POP); the City inspects the installation.
    • City of Santa Clara — FY 2026/27 Municipal Fee Schedule (adopted April 21, 2026) — verified 2026-09-23. Building: Photovoltaic - Residential, $450 for 15 kW or less plus $15 per kW above (Res. 21-8981, citing Gov. Code 66015). Fire / Construction Permits: Solar Photovoltaic Power Systems - Residential, $463 (Res. 26-9552). Technology fee of 3.37% marked as applying to both.
    • Silicon Valley Power — Rates and Fees — verified 2026-09-23. Schedule D-1 for residential service; SVP lists its average residential rate at $0.182 per kWh effective January 1, 2026. Rate Schedule NM (NM1.0) offers net metering under Public Utilities Code 2827; SVP says it has not reached the 5% threshold and that any successor tariff the City Council adopts may be priced differently from NEM 2.0 or 3.0.
    • California Energy Commission — Electric Load Serving Entities (IOU & POU) service-territory layer — verified 2026-09-23. Overlaid on the Census TIGERweb city boundary to see which utility territories fall inside the city. A map layer, not an address lookup: the bill names the utility for a given home.
    • 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 Santa Clara County the middle half of reported costs spans $3.42 to $6.11 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 Santa Clara contract follows.

    Frequently asked questions

    How much does solar cost in Santa Clara?

    About $29,700 for a 6.48 kW system, at the $4.58 per watt median that Santa Clara County owners reported (3,143 systems, January 2025 to May 2026; middle half $3.42 to $6.11). Source: CPUC DG Stats. No federal credit applies to a Santa Clara system finished in 2026.

    What does a solar permit cost in Santa Clara?

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

    Is net metering still available in Santa Clara?

    Yes, for now. Silicon Valley Power, not PG&E, serves the city, and its Rate Schedule NM offers net metering under Public Utilities Code section 2827. SVP says it has not reached the 5 percent threshold in that section, after which a utility of its size need not offer net metering to new customers, and that a successor tariff, if the City Council adopts one, may be priced differently from NEM 2.0 or NEM 3.0 elsewhere. Solar quotes written for PG&E's Solar Billing Plan do not apply to an SVP account.

    Which utility serves Santa Clara?

    Silicon Valley Power (SVP). It is not covered by the CPUC's average-rate reports; read its own tariff.

    Sources

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

    Santa Clara in the California Solar Cost IndexIts permit fee, permit platform and utility beside every other city's.Compare solar companies in Santa ClaraWho installs in Santa Clara and what each written proposal should include.

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    California Rate Relief is a referral service. We are not a licensed contractor. California Rate Relief is compensated by a solar provider when a homeowner we refer signs an agreement. How we make money

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