W3 Solar
Recently activeSolar installer based in California · installer record #13649 resolved from 24 public installation records.
At a glance
W3 Solar is a solar installer with 24 recorded installations totalling 124 kW, dated 2013 to 2025. All of its records are in California, where it ranks 2852nd of 6,010 profiled installers by volume and 4,799th of 10,537 nationally. The median installed price across 19 priced systems from all years is $4.24/W before incentives.
Track record
Install volume by year
Recorded installs per year.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Sep 17, 2025 | Santa Cruz, CA | 4.2 kW | $51,000 | Host-owned · battery |
| Aug 21, 2025 | Santa Cruz, CA | 2.9 kW | $13,250 | Host-owned |
| May 20, 2025 | Aptos, CA | 7.4 kW | $38,500 | Host-owned · battery |
| Jan 22, 2025 | Aptos, CA | 8.7 kW | $36,500 | Host-owned · battery |
| Jul 17, 2024 | Santa Cruz, CA | 4.6 kW | $36,500 | Host-owned · battery |
| Apr 30, 2024 | Freedom, CA | 2.8 kW | $12,500 | Host-owned |
| Dec 18, 2023 | Soquel, CA | 2.5 kW | $13,500 | Host-owned |
| Nov 9, 2023 | Santa Cruz, CA | 4.6 kW | $28,500 | Host-owned · battery |
| Jun 8, 2023 | Santa Cruz, CA | 4.7 kW | $24,000 | Host-owned |
| Mar 22, 2023 | Santa Cruz, CA | 5.5 kW | $50,000 | Host-owned · battery |
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Service geography
Busiest cities
Record
- Installer ID
- PC-13649
- First recorded install
- Jan 25, 2013
- Last recorded install
- Sep 17, 2025
- Priced records
- 19
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How does W3 Solar compare with other installers in California?
By recorded installations W3 Solar ranks 2852nd among the 6,010 installers based in California with five or more records. Its all-years median price of $4.24/W is roughly in line with the California median of $4.26/W. Its median system, 4.8 kW, is about 19% below the state median of 5.9 kW. 0% of its recorded installations are third-party owned (lease or power-purchase agreement), against 29% across California. 25% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Transworld Solar (24), Trinidad Electric (24) and Tyler Rodrigues Electric (24).
How has W3 Solar's installation volume changed?
W3 Solar's earliest dated installation on record is from 2013. It has recorded installations in 11 calendar years. The busiest year was 2023, with 5 installations. 2025, its latest year with records, has 4. Its median price per watt moved from $3.30/W in 2016 to $4.88/W in 2025. The most recent recorded installation is dated Sep 17, 2025.
Where does W3 Solar install solar?
All recorded installations are in California. The cities with the most of its installations are Santa Cruz, CA (15), Aptos, CA (5), Salinas, CA (1), Felton, CA (1) and Soquel, CA (1).
Frequently asked questions
How many solar installations has W3 Solar completed?
PanelCensus records 24 installations by W3 Solar, from Jan 25, 2013 to Sep 17, 2025, totalling 124 kW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does W3 Solar charge for solar?
The median installed price across 19 priced systems from all years is $4.24/W before incentives (median system 4.8 kW, about $24,000). The California median is $4.26/W. Prices are the total project cost reported to state programs, so they can include work billed with the solar.
Where does W3 Solar install solar?
All 24 recorded installations are in California, the most of them in Santa Cruz.
Is W3 Solar still installing solar?
The most recent installation attributed to W3 Solar in the public records is dated Sep 17, 2025; 2025 has 4 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.
Does W3 Solar install leased or PPA solar systems?
0 recorded installations by W3 Solar (0%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does W3 Solar install battery storage?
6 recorded installations by W3 Solar (25%) include a battery.
Related installers and places
- All solar installers in California· 6,010 profiles
- Solar installations in California· 2,408,542 records
- Transworld Solar· 24 installations
- Trinidad Electric· 24 installations
- Tyler Rodrigues Electric· 24 installations
- Yancey Roofing· 24 installations
- BUD'S PLUMBING SERVICE INC· 24 installations
- CALIFORNIA AIR COMFORT· 24 installations
Dataset updated . Sources: LBNL Tracking the Sun + permit and program records; installer resolved by exact-normalized name matching.
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, “W3 Solar, solar installer (California)”, https://panelcensus.com/installers/california/w3-solar-13649 (data as of September 21, 2026).