Solar Panel Cost in Rancho Cucamonga, CA (2026): $3.00/W Reported
By Chad SimpsonUpdated 7 sources citedRancho Cucamonga, San Bernardino County
Rancho Cucamonga homeowners who bought their own solar systems reported a median of $3.00 per watt between January 2025 and May 2026, across 47 systems. The middle half paid $2.10 to $3.57 per watt.
An 8.51 kW system, the median size connected in Rancho Cucamonga in 2025, comes to about $25,500 at that median, or $17,900 to $30,400 across the middle half.
Those are reported costs, not a quote, and no federal credit comes off a Rancho Cucamonga 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
- $3.00/W
- Rancho Cucamonga addresses, 47 systems
- Middle half
- $2.10 to $3.57/W
- 25th to 75th percentile
- Typical 8.51 kW system
- $25,500
- 8.51 kW × $3.00/W, before any incentive
- Same system, middle half
- $17,900 to $30,400
- size: Rancho Cucamonga 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 Rancho Cucamonga
Rancho Cucamonga's published permit fee for a home rooftop system is $173 (solar/photovoltaic, residential, up to 15 kW). Each kW over 15 kW adds $12.
That is $277 under the $450 limit that Government Code §66015 sets for a home system up to 15 kW.
- What Rancho Cucamonga publishes: Official Community Development Fees schedule (Rev 2-5-2024, effective July 1 2023) lists: "Solar/photovoltaic up to 15 Kw - Residential $173" and "ea Kw over 15 Kw-Residential $12"; commercial rates listed separately ($1,000 for 0-250kW, plus $5/kW over 250kW).
- How to file: Yes, via the city's Online Permit Center; SolarAPP+ named and available for single-family/duplex residential projects (all other projects must use the standard online permit center)
- Automated permit platform: SolarAPP+
Sources: City of Rancho Cucamonga Community Development Fees schedule (Rev 2-5-2024), checked September 18, 2026; Gov. Code §66015, checked September 24, 2026. Rancho Cucamonga in the California Solar Cost Index sets this fee beside every other city's.
Solar in Rancho Cucamonga: installs, leases and batteries
Home solar systems connected at Rancho Cucamonga addresses: 462 in 2021, 758 in 2022, 852 in 2023, 365 in 2024 and 376 in 2025. So connections peaked in 2023 and 2025 ran 56% below that peak. Another 173 were connected from January to May 2026.
Of the 376 systems connected in Rancho Cucamonga in 2025, 53% were leased or on a PPA, so a solar company owns them, and 47% belonged to the homeowner. 92% had a battery, more often than the 55% statewide. The median Rancho Cucamonga system was 8.51 kW, and 78 companies connected at least one.
| Rancho Cucamonga | San Bernardino County | Statewide | |
|---|---|---|---|
| Systems connected in 2025 | 376 | 11,160 | 145,404 |
| Leased or on a PPA | 53% | 58% | 45% |
| With a battery | 92% | 75% | 55% |
| Median system size | 8.51 kW | 6.3 kW | 6.15 kW |
| Median reported cost | $3.00/W (47) | $4.03/W (2,495) | $4.14/W (58,628) |
| Companies connecting systems | 78 | 389 | 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: SCE or RCMU
The City of Rancho Cucamonga says Southern California Edison is the main electric provider in the city, and that its own Rancho Cucamonga Municipal Utility (RCMU) serves over 3,900 metered businesses and residents in a selected area in the southeastern part of the city. Read the utility name on your bill before using an SCE rate. SCE's average residential rate is 34.4¢/kWh (June 1, 2026; rate tracker).
Sources: City of Rancho Cucamonga, Welcome to RCMU. Checked September 22, 2026.
Before you sign
In Rancho Cucamonga the middle half of reported costs spans $2.10 to $3.57 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 Rancho Cucamonga contract follows.
Frequently asked questions
How much does solar cost in Rancho Cucamonga?
About $25,500 for an 8.51 kW system, at the $3.00 per watt median that Rancho Cucamonga owners reported (47 systems, January 2025 to May 2026; middle half $2.10 to $3.57). Source: CPUC DG Stats. No federal credit applies to a Rancho Cucamonga system finished in 2026.
What does a solar permit cost in Rancho Cucamonga?
$173 for a home rooftop system on Rancho Cucamonga's published schedule (checked September 18, 2026); the state limit is $450 up to 15 kW under Gov. Code §66015.
Which utility serves Rancho Cucamonga?
The City of Rancho Cucamonga says Southern California Edison is the main electric provider in the city, and that its own Rancho Cucamonga Municipal Utility (RCMU) serves over 3,900 metered businesses and residents in a selected area in the southeastern part of the city. Read the utility name on your bill before using an SCE rate. Where SCE serves the address, its average residential rate is 34.4¢/kWh, as of June 1, 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
- Rancho Cucamonga solar permitting — City of Rancho Cucamonga Community Development Fees schedule (Rev 2-5-2024) — checked September 18, 2026
- California Government Code §66015(a), residential solar permit fees — checked September 24, 2026
- SCE average residential rate — CPUC Public Advocates Office, Q2 2026 Electric Rates Report, p.8, 22 — checked November 9, 2026
- City of Rancho Cucamonga, Welcome to RCMU — checked September 22, 2026
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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