Helder Dirk J
Recently activeSolar installer based in California · installer record #5899 resolved from 9 public installation records.
At a glance
Helder Dirk J is a solar installer with 9 recorded installations totalling 76 kW, dated 2019 to 2024. All of its records are in California, where it ranks 4399th of 6,010 profiled installers by volume and 7,592nd of 10,537 nationally.
Track record
Install volume by year
Recorded installs per year.
Latest records
Most recent recorded installs
| Date | Location | Size | Price | Ownership |
|---|---|---|---|---|
| Jun 27, 2024 | Marysville, CA | 7.6 kW | $24,000 | Host-owned |
| Sep 27, 2023 | Linda, CA | 10.8 kW | $39,637 | Host-owned |
| Jul 19, 2022 | Rocklin, CA | 7.2 kW | $26,660 | Host-owned |
| Jul 8, 2021 | Olivehurst, CA | 7 kW | $15,489 | Host-owned |
| Apr 16, 2021 | Rocklin, CA | 7 kW | $15,489 | Host-owned |
| Feb 4, 2021 | El Dorado Hills, CA | 6.6 kW | $23,105 | Host-owned |
| Nov 30, 2020 | Yuba City, CA | 5.1 kW | $21,436 | Host-owned |
| Sep 9, 2020 | Rocklin, CA | 7.1 kW | $22,456 | Host-owned |
| Oct 7, 2019 | Linden, CA | 17.4 kW | $46,000 | Host-owned |
Service geography
Busiest cities
Record
- Installer ID
- PC-5899
- First recorded install
- Oct 7, 2019
- Last recorded install
- Jun 27, 2024
- Priced records
- 9
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How does Helder Dirk J compare with other installers in California?
By recorded installations Helder Dirk J ranks 4399th among the 6,010 installers based in California with five or more records. Its median system, 7.1 kW, is about 20% 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. 0% include battery storage, compared with 16% of California records. Installers of similar recorded volume in California include Gs Development (9), Hafen Construction (9) and Halus Power Systems (9).
How has Helder Dirk J's installation volume changed?
Helder Dirk J's earliest dated installation on record is from 2019. It has recorded installations in 6 calendar years. The busiest year was 2021, with 3 installations. 2024, its latest year with records, has 1. Its median price per watt moved from $2.64/W in 2019 to $3.15/W in 2024. The most recent recorded installation is dated Jun 27, 2024.
Where does Helder Dirk J install solar?
All recorded installations are in California. The cities with the most of its installations are Rocklin, CA (3), Linden, CA (1), Olivehurst, CA (1), Linda, CA (1) and Yuba City, CA (1).
Frequently asked questions
How many solar installations has Helder Dirk J completed?
PanelCensus records 9 installations by Helder Dirk J, from Oct 7, 2019 to Jun 27, 2024, totalling 76 kW of capacity. Public reporting varies by state, so the company's true total may be higher.
What does Helder Dirk J charge for solar?
The median installed price across 9 priced systems from all years is $3.16/W before incentives (median system 7.1 kW, about $23,105). 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 Helder Dirk J install solar?
All 9 recorded installations are in California, the most of them in Rocklin.
Is Helder Dirk J still installing solar?
The most recent installation attributed to Helder Dirk J in the public records is dated Jun 27, 2024; 2024 has 1 recorded installation. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.
Does Helder Dirk J install leased or PPA solar systems?
0 recorded installations by Helder Dirk J (0%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.
Does Helder Dirk J install battery storage?
0 recorded installations by Helder Dirk J (0%) include a battery.
Related installers and places
- All solar installers in California· 6,010 profiles
- Solar installations in California· 2,408,542 records
- Gs Development· 9 installations
- Hafen Construction· 9 installations
- Halus Power Systems· 9 installations
- High Country Builders· 9 installations
- Hubbart Roger Construction· 9 installations
- Independent Energy· 9 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, “Helder Dirk J, solar installer (California)”, https://panelcensus.com/installers/california/helder-dirk-j-5899 (data as of September 21, 2026).