Twinpeak Solar
Recently activeSolar installer based in California · installer record #13296 resolved from 129 public installation records.
Data through: California through Aug 2026 (monthly state program data).
At a glance
Twinpeak Solar is a solar installer with 129 recorded installations totalling 1.6 MW, dated 2022 to 2026. All of its records are in California, where it ranks 1224th of 6,163 profiled installers by volume and 1,995th of 10,840 nationally. Its median installed price for solar-only systems in 2023–2025 is $2.76/W before incentives, across 42 priced systems.
Track record
Install volume by year
Recorded installs per year; prices by year are in the table below.
Pricing
Price by year (solar only)
| Year | Priced systems | Twinpeak Solar | California median | vs state |
|---|---|---|---|---|
| 2025 | 6 | $2.75/W | $3.29/W | −16% |
| 2024 | 7 | $2.81/W | $3.80/W | −26% |
| 2023 | 29 | $2.76/W | $4.06/W | −32% |
Median installed price per DC watt before incentives, systems without a battery, by the year in the public record. Years with fewer than five priced systems are left out.
Why a company's own figure can differ from this one
- Timing. These prices come from state incentive filings, published about once a year, so the latest full year here is 2025. Prices moved down in many states after 2023; a company's current quotes can be lower (or higher) than its last full year on record.
- Dates. A filing is dated when the program processed it, not when the job was sold, so jobs can land in a different month or year than in the company's own books.
- What the price includes. The filed price is the whole project as reported to the program, which can include loan dealer fees, electrical panel upgrades or roof work. A company's internal figure often leaves those out.
- Batteries. Systems flagged with a battery are excluded here; a battery the filing didn't flag can still raise a year's median.
Equipment
Module, inverter and battery brands
| Equipment | Year | Main brands (share of systems that reported one) | Year before |
|---|---|---|---|
| Modules | 2026*31 reported | Qcells 39% · Mission Solar 19% · REC 16% · Silfab 10% | Qcells 82%2025, 39 reported |
| Inverters | 2026*31 reported | Enphase 45% · Tesla 32% · SolarEdge 10% · ABB / FIMER 3% | Enphase 61%2025, 38 reported |
| Batteries | 2026*20 reported | Tesla 55% · Enphase 45%Main brand changed from Enphase (2025) | Enphase 64%2025, 25 reported |
Manufacturer on each recorded installation, as filed with the state program (Tracking the Sun for earlier years). Brand names are grouped by manufacturer family (e.g. Hanwha Q CELLS and Qcells North America count as Qcells). Not every state reports equipment, and battery brands come mainly from California and New Jersey. *2026 to date, from California records only.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Aug 27, 2026 | Bakersfield, CA | 11.4 kW | — | Third-party · battery |
| Aug 26, 2026 | Hayward, CA | 8.1 kW | — | Third-party · battery |
| Aug 4, 2026 | Yuba City, CA | 10.2 kW | — | Host-owned · battery |
| Jul 28, 2026 | San Jose, CA | 4.6 kW | — | Third-party · battery |
| Jul 23, 2026 | Bakersfield, CA | 5.7 kW | — | Host-owned |
| Jul 16, 2026 | San Ramon, CA | 11.2 kW | — | Third-party · battery |
| Jul 16, 2026 | Fairfield, CA | 11.6 kW | — | Third-party · battery |
| Jul 16, 2026 | San Jose, CA | 6.9 kW | — | Third-party · battery |
| Jul 3, 2026 | Richmond, CA | 4 kW | — | Host-owned |
| Jul 1, 2026 | Oakland, CA | 12.3 kW | — | Third-party · battery |
See all 129 installations →searchable & filterable; export to CSV with a free account
Service geography
- California
- 129
Busiest cities
Record
- Installer ID
- PC-13296
- First recorded install
- Sep 27, 2022
- Last recorded install
- Aug 27, 2026
- Priced records
- 88
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How does Twinpeak Solar compare with other installers in California?
By recorded installations Twinpeak Solar ranks 1224th among the 6,163 installers based in California with five or more records. Its 2023–2025 solar-only median of $2.76/W is about 30% below the California median of $3.95/W on the same basis. Its median system, 9.2 kW, is about 55% above the state median of 5.9 kW. 6% of its recorded installations are third-party owned (lease or power-purchase agreement), against 29% across California. 56% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Suns Free Solar (130), SYNCON HOMES OF CALIFORNIA INC (130) and Pacific Solar Homes (129).
How has Twinpeak Solar's installation volume changed?
Twinpeak Solar's earliest dated installation on record is from 2022. It has recorded installations in 4 calendar years. The busiest year was 2025, with 40 installations. Its median price per watt moved from $3.31/W in 2022 to $3.88/W in 2025. The most recent recorded installation is dated Aug 27, 2026.
Where does Twinpeak Solar install solar?
All recorded installations are in California. The cities with the most of its installations are Fairfield, CA (20), San Jose, CA (11), Yuba City, CA (7), Danville, CA (6) and Suisun City, CA (6).
Frequently asked questions
How many solar installations has Twinpeak Solar completed?
PanelCensus records 129 installations by Twinpeak Solar, from Sep 27, 2022 to Aug 27, 2026, totalling 1.6 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Twinpeak Solar charge for solar?
For solar-only systems installed in 2023–2025, the median reported price is $2.76/W before incentives, across 42 priced systems. The California median on the same basis is $3.95/W. Across all 88 priced systems since 2022, including battery systems, the median is $3.20/W. Prices are the total project cost reported to state incentive programs, divided by the system's DC watts, so they can include electrical upgrades or other work billed with the solar.
Where does Twinpeak Solar install solar?
All 129 recorded installations are in California, the most of them in Fairfield.
Is Twinpeak Solar still installing solar?
The most recent installation attributed to Twinpeak Solar in the public records is dated Aug 27, 2026; 2025 has 40 recorded installations. Records here run California through Aug 2026 (monthly state program data), so the newest installations may not appear yet.
Does Twinpeak Solar install leased or PPA solar systems?
8 recorded installations by Twinpeak Solar (6%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does Twinpeak Solar install battery storage?
72 recorded installations by Twinpeak Solar (56%) include a battery.
Related installers and places
Dataset updated . Sources: LBNL Tracking the Sun (through 2025), monthly state program records (California DGStats, NYSERDA, NJ Clean Energy, Illinois Shines) and permit records; installer resolved by exact-normalized name matching and, for state program records, by the systems both sources share.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published September 21, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Twinpeak Solar, solar installer (California)”, https://panelcensus.com/installers/california/twinpeak-solar-13296 (data as of September 21, 2026).