Solar Panel Cost in Thousand Oaks, CA (2026): $3.50/W County Median
By Chad SimpsonUpdated 7 sources citedThousand Oaks, Ventura County
Homeowners in Ventura County who bought their own solar systems reported a median of $3.50 per watt between January 2025 and May 2026, across 468 systems. The middle half paid $2.80 to $4.44 per watt.
Only 29 Thousand Oaks owners reported a cost in the CPUC data, fewer than the 30 a figure needs here, so the one above is for Ventura County.
An 8.17 kW system, the median size connected in Thousand Oaks in 2025, comes to about $28,600 at that median, or $22,900 to $36,300 across the middle half.
Those are reported costs, not a quote, and no federal credit comes off a Thousand Oaks 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
- $3.50/W
- Ventura County, IOU-served homes, 468 systems
- Middle half
- $2.80 to $4.44/W
- 25th to 75th percentile
- Typical 8.17 kW system
- $28,600
- 8.17 kW × $3.50/W, before any incentive
- Same system, middle half
- $22,900 to $36,300
- size: Thousand Oaks 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.
California Rate Relief is a referral service. We are not a licensed contractor.
What a solar permit costs in Thousand Oaks
Thousand Oaks does not publish a dollar figure for a residential solar permit. Whatever it charges, Government Code §66015 limits a city to $450 for a home system up to 15 kW, plus $15 per kW above that, unless it adopts a written finding that its cost is higher.
- What Thousand Oaks publishes: Thousand Oaks' solar page does not state the City's permit fee. It says any fees for the SolarAPP+ web service are independent of and unrelated to the City's own.
- How to file: Yes. Licensed B, C-10 and C-46 contractors can use SolarAPP+ for roof-mounted residential systems up to 38.4 kW AC, then apply through the City's TO/24 online services. Ballasted, ground-mounted and carport systems need a standard solar permit, also filed through TO/24.
- Automated permit platform: SolarAPP+
Sources: City of Thousand Oaks, Solar PV Systems, checked September 23, 2026; Gov. Code §66015, checked September 24, 2026. Thousand Oaks in the California Solar Cost Index sets this fee beside every other city's.
Solar in Thousand Oaks: installs, leases and batteries
Home solar systems connected at Thousand Oaks addresses: 435 in 2021, 693 in 2022, 695 in 2023, 313 in 2024 and 392 in 2025. So connections peaked in 2023 and 2025 ran 44% below that peak. Another 208 were connected from January to May 2026.
Of the 392 systems connected in Thousand Oaks in 2025, 39% were leased or on a PPA, so a solar company owns them, and 61% belonged to the homeowner. 92% had a battery, more often than the 55% statewide. The median Thousand Oaks system was 8.17 kW, and 100 companies connected at least one.
| Thousand Oaks | Ventura County | Statewide | |
|---|---|---|---|
| Systems connected in 2025 | 392 | 3,546 | 145,404 |
| Leased or on a PPA | 39% | 44% | 45% |
| With a battery | 92% | 89% | 55% |
| Median system size | 8.17 kW | 6.8 kW | 6.15 kW |
| Median reported cost | under 30 reports | $3.50/W (468) | $4.14/W (58,628) |
| Companies connecting systems | 100 | 265 | 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
Thousand Oaks is billed by Southern California Edison (SCE). SCE's average residential rate is 34.4¢/kWh (June 1, 2026; rate tracker).
Clean Power Alliance supplies generation for many Thousand Oaks addresses while SCE delivers and bills; your bill shows which. Source: SCE, Community Choice Aggregation (the CCAs in SCE territory and the cities each serves).
Before you compare proposals
The Thousand Oaks project checks that change the decision
Thousand Oaks keeps its fast SolarAPP+ route for roof-mounted home systems; carports and ground mounts take a standard permit. Clean Power Alliance, the generation provider, sets how exports are paid.
Ask the same three questions
- Is the design a roof-mounted system of 38.4 kW AC or less, or a carport, ground-mounted or ballasted system that needs a standard permit?
- Does the contractor hold a B, C-10 or C-46 license, the only classes the City accepts for SolarAPP+?
- Does the savings estimate use Clean Power Alliance's export credits, its bonus credit for systems installed before 2028 and its April true-up?
Local checks
Carports and ground mounts take a standard permit
Thousand Oaks sends ballasted, ground-mounted and carport systems to a standard solar permit instead of SolarAPP+. If a quote includes one, ask how the permit step is scheduled and priced.
SolarAPP+ fees are separate
The City says fees for the SolarAPP+ web service are independent of and unrelated to its own permit fees.
How Clean Power Alliance pays for exports
Clean Power Alliance credits Solar Billing Plan exports hourly from CPUC avoided-cost prices, adds an Energy Export Bonus Credit for systems installed before 2028, trues up every April, and pays surplus at a rate 10 percent above SCE's. SCE applies the delivery charges and credits.
Related decisions
Local sources and limits
- City of Thousand Oaks — Solar PV Systems — verified 2026-09-23. SolarAPP+ for roof-mounted residential systems up to 38.4 kW AC by B, C-10 and C-46 contractors; ballasted, ground-mounted and carport systems need a standard permit; both filed through TO/24; SolarAPP+ fees are independent of City fees. No City fee amount stated.
- SCE — Community Choice Aggregation — verified 2026-09-23. Lists the CCAs in SCE territory and the cities each serves, and says SCE continues meter reading, billing, maintenance and outage response for CCA customers. A city missing from the list has no CCA named there.
- Clean Power Alliance — Solar / Net Energy Metering — verified 2026-09-23. Solar Billing Plan (approved after August 31, 2023): hourly Energy Export Credits from CPUC Avoided Cost Calculator prices; Energy Export Bonus Credit for systems installed before 2028; Net Surplus Compensation 10% above SCE’s; annual true-up in April; SCE applies delivery charges and credits.
Before you sign
In Ventura County the middle half of reported costs spans $2.80 to $4.44 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 Thousand Oaks contract follows.
Frequently asked questions
How much does solar cost in Thousand Oaks?
About $28,600 for an 8.17 kW system, at the $3.50 per watt median that Ventura County owners reported (468 systems, January 2025 to May 2026; middle half $2.80 to $4.44). Source: CPUC DG Stats. No federal credit applies to a Thousand Oaks system finished in 2026.
What does a solar permit cost in Thousand Oaks?
Thousand Oaks states no single current figure (no figure published, checked September 23, 2026); Gov. Code §66015 caps it at $450 up to 15 kW unless the city adopts a written finding.
Which utility serves Thousand Oaks?
Southern California Edison (SCE). 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
- Thousand Oaks solar permitting — City of Thousand Oaks, Solar PV Systems — checked September 23, 2026
- California Government Code §66015(a), residential solar permit fees — checked September 24, 2026
- SCE, Community Choice Aggregation (the CCAs in SCE territory and the cities each serves) — checked September 23, 2026
- SCE average residential rate — CPUC Public Advocates Office, Q2 2026 Electric Rates Report, p.8, 22 — checked November 9, 2026
The tax, contract and permit rules every California city shares, with their statutes: California Solar Tax and Permit Rules for 2026.
Have your bill reviewed
Start with the utility on your bill and what you pay in a typical month. Contact details come after that. The calculators and checklists on this page stay usable without submitting anything.
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
Before you send anything
- What this is
- California Rate Relief is a private referral service. It is not a contractor, does not install or finance anything, and is not a utility, a government agency or an assistance program.
- What happens after the form
- Your project details are recorded for referral to a solar provider. The provider decides whether it can help and what it can offer; availability, design and price are determined after its own review.
- How you are contacted
- Read the consent wording before submitting. Your inquiry includes contact details for follow-up about the project; a provider decides whether it can serve it.
- Using the site without submitting
- The calculators, bill comparisons and checklists on this site work without contact details, and nothing on this page requires a submission.