Calsun Electric Systems
Recently activeSolar installer based in California · installer record #2328 resolved from 363 public installation records.
At a glance
Calsun Electric Systems is a solar installer with 363 recorded installations totalling 3.9 MW, dated 2017 to 2025. All of its records are in California, where it ranks 602nd of 6,010 profiled installers by volume and 969th of 10,537 nationally. Its median installed price for solar-only systems in 2025 is $3.29/W before incentives, across 30 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 | Calsun Electric Systems | California median | vs state |
|---|---|---|---|---|
| 2025 | 30 | $3.29/W | $3.29/W | +0% |
| 2024 | 23 | $3.11/W | $3.80/W | −18% |
| 2023 | 78 | $3.40/W | $4.06/W | −16% |
| 2022 | 59 | $3.36/W | $4.11/W | −18% |
| 2021 | 56 | $2.84/W | $3.98/W | −29% |
| 2020 | 50 | $2.82/W | $3.97/W | −29% |
| 2019 | 28 | $2.69/W | $3.95/W | −32% |
| 2017 | 5 | $2.38/W | $4.05/W | −41% |
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.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Dec 17, 2025 | Heritage Ranch, CA | 2.8 kW | $12,238 | Host-owned |
| Dec 2, 2025 | Paso Robles, CA | 16.2 kW | $51,000 | Host-owned |
| Nov 25, 2025 | Morro Bay, CA | 3.2 kW | $14,057 | Host-owned |
| Oct 28, 2025 | Morro Bay, CA | 3.6 kW | $15,130 | Host-owned |
| Oct 22, 2025 | Nipomo, CA | 9.8 kW | $32,000 | Host-owned · battery |
| Oct 10, 2025 | Nipomo, CA | 2.8 kW | $12,157 | Host-owned |
| Sep 17, 2025 | Templeton, CA | 24.3 kW | $69,580 | Host-owned |
| Sep 15, 2025 | Templeton, CA | 14.6 kW | $40,532 | Host-owned |
| Sep 3, 2025 | Templeton, CA | 10.5 kW | $29,418 | Host-owned |
| Aug 26, 2025 | San Luis Obispo, CA | 2.4 kW | $11,056 | Host-owned |
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Service geography
- California
- 363
Busiest cities
Record
- Installer ID
- PC-2328
- First recorded install
- Jun 14, 2017
- Last recorded install
- Dec 17, 2025
- Priced records
- 357
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How does Calsun Electric Systems compare with other installers in California?
By recorded installations Calsun Electric Systems ranks 602nd among the 6,010 installers based in California with five or more records. Its 2025 solar-only median of $3.29/W is roughly in line with the California median of $3.29/W on the same basis. Its median system, 7.7 kW, is about 30% above 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. 7% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Sierra Pacific Home Comfort (365), Sunon Energy (365) and Pav Solar (364).
How has Calsun Electric Systems's installation volume changed?
Calsun Electric Systems's earliest dated installation on record is from 2017. It has recorded installations in 9 calendar years. The busiest year was 2023, with 83 installations. 2025, its latest year with records, has 38. Its median price per watt moved from $2.33/W in 2017 to $3.37/W in 2025. The most recent recorded installation is dated Dec 17, 2025.
Where does Calsun Electric Systems install solar?
All recorded installations are in California. The cities with the most of its installations are Paso Robles, CA (160), Templeton, CA (49), Atascadero, CA (29), Morro Bay, CA (22) and San Luis Obispo, CA (17).
Frequently asked questions
How many solar installations has Calsun Electric Systems completed?
PanelCensus records 363 installations by Calsun Electric Systems, from Jun 14, 2017 to Dec 17, 2025, totalling 3.9 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Calsun Electric Systems charge for solar?
For solar-only systems installed in 2025, the median reported price is $3.29/W before incentives, across 30 priced systems. The California median on the same basis is $3.29/W. Across all 357 priced systems since 2017, including battery systems, the median is $3.10/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 Calsun Electric Systems install solar?
All 363 recorded installations are in California, the most of them in Paso Robles.
Is Calsun Electric Systems still installing solar?
The most recent installation attributed to Calsun Electric Systems in the public records is dated Dec 17, 2025; 2025 has 38 recorded installations. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.
Does Calsun Electric Systems install leased or PPA solar systems?
0 recorded installations by Calsun Electric Systems (0%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does Calsun Electric Systems install battery storage?
27 recorded installations by Calsun Electric Systems (7%) include a battery.
Related installers and places
- All solar installers in California· 6,010 profiles
- Solar installations in California· 2,408,542 records
- Sierra Pacific Home Comfort· 365 installations
- Sunon Energy· 365 installations
- Pav Solar· 364 installations
- Solar Unlimited· 363 installations
- Solfusion· 362 installations
- Sun At Work Solar· 361 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, “Calsun Electric Systems, solar installer (California)”, https://panelcensus.com/installers/california/calsun-electric-systems-2328 (data as of September 21, 2026).