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    Solano County · Reported cost

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

    By Updated 10 sources citedVallejo, Solano County

    MethodologyHow we make moneyEditorial policy

    Vallejo homeowners who bought their own solar systems reported a median of $4.58 per watt between January 2025 and May 2026, across 114 systems. The middle half paid $3.07 to $6.88 per watt.

    A 5.29 kW system, the median size connected in Vallejo in 2025, comes to about $24,200 at that median, or $16,200 to $36,400 across the middle half.

    Those are reported costs, not a quote, and no federal credit comes off a Vallejo 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
    Vallejo addresses, 114 systems
    Middle half
    $3.07 to $6.88/W
    25th to 75th percentile
    Typical 5.29 kW system
    $24,200
    5.29 kW × $4.58/W, before any incentive
    Same system, middle half
    $16,200 to $36,400
    size: Vallejo 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 Vallejo

    Vallejo's published permit fee for a home rooftop system is $450 ($138 residential solar plan review + $312 residential solar permit, 15 kW or less). Each kW above 15 kW adds $54.28; the City adds a $38 permit issuance fee.

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

    • What Vallejo publishes: Vallejo's Master Fee Schedule for fiscal year 2025-2026, effective July 1, 2025, lists residential solar plan review at $138 and a residential solar permit of 15 kW or less at $312, with $54.28 for each kW above 15 kW. The schedule says these solar fees comply with Government Code section 66015 and are capped at $450 for a residential system before the City's $38 permit issuance fee is added.
    • How to file: Yes. The City takes permit applications online through eTRAKiT and embeds Symbium's permit tool on its Central Permit Center page, and the California Energy Commission's SB 379 data lists Vallejo's platform as Symbium. The City's pages do not describe the solar route in detail.
    • Automated permit platform: Symbium

    Sources: City of Vallejo, Central Permit Center, checked September 23, 2026; City of Vallejo, Master Fee Schedule FY 2025-2026, fees effective July 1, 2025 (Residential Solar Permits, items 36-38), 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. Vallejo in the California Solar Cost Index sets this fee beside every other city's.

    Solar in Vallejo: installs, leases and batteries

    Home solar systems connected at Vallejo addresses: 466 in 2021, 734 in 2022, 669 in 2023, 498 in 2024 and 552 in 2025. So connections peaked in 2022 and 2025 ran 25% below that peak. Another 217 were connected from January to May 2026.

    Of the 552 systems connected in Vallejo in 2025, 68% were leased or on a PPA, so a solar company owns them, and 32% belonged to the homeowner. 63% had a battery, more often than the 55% statewide. The median Vallejo system was 5.29 kW, and 72 companies connected at least one.

    Vallejo beside Solano County and Statewide, 2025
    VallejoSolano CountyStatewide
    Systems connected in 20255523,181145,404
    Leased or on a PPA68%49%45%
    With a battery63%50%55%
    Median system size5.29 kW5.64 kW6.15 kW
    Median reported cost$4.58/W (114)$3.07/W (1,372)$4.14/W (58,628)
    Companies connecting systems721532,475

    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 or City of Pittsburg

    The California Energy Commission's service-territory map places part of Vallejo inside the City of Pittsburg's electric service territory rather than PG&E's. Read the utility name on your bill before using a PG&E rate. PG&E's average residential rate is 33.7¢/kWh (June 2026 (unchanged since March 2026); rate tracker).

    Sources: California Energy Commission, Electric Load Serving Entities (IOU & POU) service-territory map. Checked September 23, 2026.

    MCE (Marin Clean Energy) supplies generation for many Vallejo addresses while PG&E delivers and bills; your bill shows which. Source: MCE, About Us (member communities).

    Before you compare proposals

    The Vallejo project checks that change the decision

    Vallejo publishes its solar permit fees, and part of the city lies outside PG&E territory. Settle which utility serves the address before comparing any bill model.

    Ask the same three questions

    1. Which utility bills the address? The CEC's map puts part of Vallejo in the City of Pittsburg's electric territory rather than PG&E's.
    2. Is the system over 15 kW? Vallejo adds $54.28 for each kW above that.
    3. Does the savings estimate include MCE's export and bonus credits along with PG&E's delivery charges?

    Local checks

    Published fees

    Vallejo's 2025-2026 schedule lists $138 for residential solar plan review and $312 for a permit up to 15 kW, and says its solar fees stay within the state's $450 limit before the City's $38 permit issuance fee.

    Symbium, by the state’s record

    The City takes permit applications through eTRAKiT and embeds Symbium's tool on its permit center page; the CEC's SB 379 data lists Vallejo's platform as Symbium. Ask the installer which route it will file.

    MCE's bonus credits

    MCE adds 10 percent to each billing period’s export credits, pays qualifying CARE and FERA households $0.05 per kWh more, offers $10 to $20 a month for enrolled batteries, and cashes out surplus over $200 after each April-to-March year, up to $5,000.

    Local sources and limits
    • City of Vallejo — Master Fee Schedule FY 2025-2026 (fees effective July 1, 2025) — verified 2026-09-23. Residential solar plan review $138; residential solar 15 kW or less $312; per kW above 15 kW $54.28; solar fees stated to comply with Gov. Code 66015 and capped at $450 residential before the $38 permit issuance fee.
    • City of Vallejo — Central Permit Center — verified 2026-09-23. Permit applications through eTRAKiT; a Symbium permit search is embedded on the page; no solar-specific route described.
    • 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: Chico (deadline Sept 2023) and Arcata (deadline Sept 2024), both without a platform; Pasadena, Anaheim, San Jose and Tracy (custom platform); Santa Clarita, Vallejo, Corona and Ontario (Symbium); Escondido, Monterey, Modesto, Mountain View and Huntington Beach (SolarAPP+).
    • MCE — Solar Billing Plan — verified 2026-09-23. Exports credited at the Energy Export Credit value plus an MCE Solar Bonus Credit of 10% of those credits; CARE/FERA solar credit of $0.05 per kWh; Solar Storage Credit of $10 to $20 a month for enrolled batteries; annual April-to-March cash-out at Net Surplus Compensation for balances over $200, up to $5,000.
    • 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.

    Before you sign

    In Vallejo the middle half of reported costs spans $3.07 to $6.88 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 Vallejo contract follows.

    Frequently asked questions

    How much does solar cost in Vallejo?

    About $24,200 for a 5.29 kW system, at the $4.58 per watt median that Vallejo owners reported (114 systems, January 2025 to May 2026; middle half $3.07 to $6.88). Source: CPUC DG Stats. No federal credit applies to a Vallejo system finished in 2026.

    What does a solar permit cost in Vallejo?

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

    Which utility serves Vallejo?

    The California Energy Commission's service-territory map places part of Vallejo inside the City of Pittsburg's electric service territory rather than PG&E's. Read the utility name on your bill before using a PG&E rate. Where PG&E serves the address, its average residential rate is 33.7¢/kWh, as of June 2026 (unchanged since March 2026).

    Sources

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

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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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