Eflow Solar Energy
Recently activeSolar installer based in California · installer record #4052 resolved from 88 public installation records.
Data through: California through Aug 2026 (monthly state program data).
At a glance
Eflow Solar Energy is a solar installer with 88 recorded installations totalling 628 kW, dated 2015 to 2025. All of its records are in California, where it ranks 1537th of 6,163 profiled installers by volume and 2,525th of 10,840 nationally. Its median installed price for solar-only systems in 2023–2025 is $3.37/W before incentives, across 16 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 | Eflow Solar Energy | California median | vs state |
|---|---|---|---|---|
| 2023 | 14 | $3.37/W | $4.06/W | −17% |
| 2022 | 11 | $3.34/W | $4.11/W | −19% |
| 2021 | 11 | $3.50/W | $3.98/W | −12% |
| 2019 | 18 | $3.92/W | $3.95/W | −1% |
| 2018 | 7 | $3.36/W | $4.01/W | −16% |
| 2017 | 8 | $3.60/W | $4.05/W | −11% |
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
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Mar 7, 2025 | Piedmont, CA | 28 kW | $105,280 | Host-owned |
| Aug 23, 2024 | Discovery Bay, CA | 7.7 kW | $36,196 | Host-owned · battery |
| Aug 6, 2024 | Oakley, CA | 3.6 kW | $11,880 | Host-owned |
| Jun 4, 2024 | Bay Point, CA | 5.2 kW | $25,072 | Host-owned · battery |
| Jan 18, 2024 | Pleasanton, CA | 6 kW | $39,050 | Host-owned · battery |
| Sep 27, 2023 | Livermore, CA | 9.2 kW | $32,926 | Host-owned |
| Sep 18, 2023 | Danville, CA | 9.2 kW | $35,512 | Host-owned |
| Aug 23, 2023 | Livermore, CA | 6.4 kW | $21,339 | Host-owned |
| Aug 23, 2023 | Livermore, CA | 6.4 kW | $21,339 | Host-owned |
| Jul 26, 2023 | Rio Vista, CA | 5.2 kW | $17,680 | Host-owned |
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Service geography
Busiest cities
Record
- Installer ID
- PC-4052
- First recorded install
- Jan 8, 2015
- Last recorded install
- Mar 7, 2025
- Priced records
- 80
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How does Eflow Solar Energy compare with other installers in California?
By recorded installations Eflow Solar Energy ranks 1537th among the 6,163 installers based in California with five or more records. Its 2023–2025 solar-only median of $3.37/W is about 15% below the California median of $3.95/W on the same basis. Its median system, 6.4 kW, is roughly in line with 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. 6% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include All Premium Contractors (88), Apex Electrical (88) and Ecocentric (88).
How has Eflow Solar Energy's installation volume changed?
Eflow Solar Energy's earliest dated installation on record is from 2015. It has recorded installations in 11 calendar years. The busiest year was 2019, with 18 installations. 2025, its latest year with records, has 1. Its median price per watt moved from $4.33/W in 2016 to $3.75/W in 2025. The most recent recorded installation is dated Mar 7, 2025.
Where does Eflow Solar Energy install solar?
All recorded installations are in California. The cities with the most of its installations are Oakley, CA (12), Brentwood, CA (11), Rio Vista, CA (6), Pleasanton, CA (5) and Livermore, CA (5).
Frequently asked questions
How many solar installations has Eflow Solar Energy completed?
PanelCensus records 88 installations by Eflow Solar Energy, from Jan 8, 2015 to Mar 7, 2025, totalling 628 kW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Eflow Solar Energy charge for solar?
For solar-only systems installed in 2023–2025, the median reported price is $3.37/W before incentives, across 16 priced systems. The California median on the same basis is $3.95/W. Across all 80 priced systems since 2015, including battery systems, the median is $3.60/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 Eflow Solar Energy install solar?
All 88 recorded installations are in California, the most of them in Oakley.
Is Eflow Solar Energy still installing solar?
The most recent installation attributed to Eflow Solar Energy in the public records is dated Mar 7, 2025; 2025 has 1 recorded installation. Records here run California through Aug 2026 (monthly state program data), so the newest installations may not appear yet.
Does Eflow Solar Energy install leased or PPA solar systems?
0 recorded installations by Eflow Solar Energy (0%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does Eflow Solar Energy install battery storage?
5 recorded installations by Eflow Solar Energy (6%) include a battery.
Related installers and places
- All solar installers in California· 6,163 profiles
- Solar installations in California· 2,408,542 records
- All Premium Contractors· 88 installations
- Apex Electrical· 88 installations
- Ecocentric· 88 installations
- Foshay Electric· 88 installations
- Motive Energy Telecom· 88 installations
- DONN REESE· 88 installations
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, “Eflow Solar Energy, solar installer (California)”, https://panelcensus.com/installers/california/eflow-solar-energy-4052 (data as of September 21, 2026).