4Th Day Energy
Recently activeSolar installer based in California · installer record #84 resolved from 430 public installation records.
Data through: California through Aug 2026 (monthly state program data).
At a glance
4Th Day Energy is a solar installer with 430 recorded installations totalling 6.6 MW, dated 2007 to 2024. All of its records are in California, where it ranks 514th of 6,010 profiled installers by volume and 842nd of 10,537 nationally. Its median installed price for solar-only systems in 2023–2025 is $3.04/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 | 4Th Day Energy | California median | vs state |
|---|---|---|---|---|
| 2023 | 13 | $3.14/W | $4.06/W | −23% |
| 2022 | 18 | $3.30/W | $4.11/W | −20% |
| 2021 | 15 | $2.89/W | $3.98/W | −27% |
| 2020 | 14 | $2.80/W | $3.97/W | −29% |
| 2019 | 14 | $3.10/W | $3.95/W | −22% |
| 2018 | 37 | $3.20/W | $4.01/W | −20% |
| 2017 | 65 | $3.20/W | $4.05/W | −21% |
| 2016 | 70 | $3.47/W | $4.37/W | −21% |
| 2015 | 48 | $3.78/W | $4.58/W | −17% |
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 | 20245 reported | Qcells 60% · SolarJuice Technology 20% · ZNShine 20% | — |
| Inverters | 20245 reported | SMA 40% · SolarEdge 40% · Enphase 20% | — |
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.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Aug 29, 2024 | Fresno, CA | 59 kW | $0 | Host-owned |
| May 13, 2024 | Clovis, CA | 6.5 kW | $1 | Third-party · battery |
| May 9, 2024 | Sanger, CA | 27.4 kW | $76,319 | Host-owned |
| Apr 22, 2024 | Selma, CA | 13.4 kW | $39,821 | Host-owned |
| Jan 25, 2024 | Auberry, CA | 2.9 kW | $7,000 | Host-owned |
| Dec 18, 2023 | Clovis, CA | 3.6 kW | $15,127 | Third-party · battery |
| Nov 21, 2023 | Kingsburg, CA | 17.8 kW | $70,000 | Host-owned |
| Oct 2, 2023 | Prather, CA | 12.8 kW | $40,000 | Host-owned |
| Sep 8, 2023 | Tollhouse, CA | 3.6 kW | $8,000 | Host-owned |
| Aug 28, 2023 | Fresno, CA | 13.6 kW | $58,000 | Host-owned · battery |
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Service geography
- California
- 430
Busiest cities
Record
- Installer ID
- PC-84
- First recorded install
- Aug 24, 2007
- Last recorded install
- Aug 29, 2024
- Priced records
- 344
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How does 4Th Day Energy compare with other installers in California?
By recorded installations 4Th Day Energy ranks 514th among the 6,010 installers based in California with five or more records. Its 2023–2025 solar-only median of $3.04/W is about 23% below the California median of $3.95/W on the same basis. Its median system, 7.8 kW, is about 32% above the state median of 5.9 kW. 5% of its recorded installations are third-party owned (lease or power-purchase agreement), against 29% across California. under 1% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Wave Electric Energy (434), Burmax (433) and PLUMBER HERO INC (431).
How has 4Th Day Energy's installation volume changed?
4Th Day Energy's earliest dated installation on record is from 2007. It has recorded installations in 18 calendar years. The busiest year was 2015, with 83 installations. 2024, its latest year with records, has 5. Its median price per watt moved from $7.29/W in 2007 to $2.79/W in 2024. The most recent recorded installation is dated Aug 29, 2024.
Where does 4Th Day Energy install solar?
All recorded installations are in California. The cities with the most of its installations are Fresno, CA (153), Clovis, CA (101), Sanger, CA (15), Madera, CA (15) and Hanford, CA (10).
Frequently asked questions
How many solar installations has 4Th Day Energy completed?
PanelCensus records 430 installations by 4Th Day Energy, from Aug 24, 2007 to Aug 29, 2024, totalling 6.6 MW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does 4Th Day Energy charge for solar?
For solar-only systems installed in 2023–2025, the median reported price is $3.04/W before incentives, across 16 priced systems. The California median on the same basis is $3.95/W. Across all 344 priced systems since 2007, including battery systems, the median is $3.38/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 4Th Day Energy install solar?
All 430 recorded installations are in California, the most of them in Fresno.
Is 4Th Day Energy still installing solar?
The most recent installation attributed to 4Th Day Energy in the public records is dated Aug 29, 2024; 2024 has 5 recorded installations. Records here run California through Aug 2026 (monthly state program data), so the newest installations may not appear yet.
Does 4Th Day Energy install leased or PPA solar systems?
20 recorded installations by 4Th Day Energy (5%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does 4Th Day Energy install battery storage?
3 recorded installations by 4Th Day Energy (under 1%) include a battery.
Related installers and places
- All solar installers in California· 6,010 profiles
- Solar installations in California· 2,408,542 records
- Wave Electric Energy· 434 installations
- Burmax· 433 installations
- PLUMBER HERO INC· 431 installations
- Ambassador Energy· 430 installations
- Solargem Electrical· 430 installations
- Earthwise Energy Solutions· 429 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, “4Th Day Energy, solar installer (California)”, https://panelcensus.com/installers/california/4th-day-energy-84 (data as of September 21, 2026).