PanelCensus

Cole Williams Electric

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Solar installer based in California · installer record #2884 resolved from 162 public installation records.

At a glance

Cole Williams Electric is a solar installer with 162 recorded installations totalling 889 kW, dated 2007 to 2020. All of its records are in California, where it ranks 1032nd of 6,010 profiled installers by volume and 1,665th of 10,537 nationally. The median installed price across 158 priced systems from all years is $1.65/W before incentives.

Recorded installs
162
Total capacity
889 kW
DC nameplate
Median system
4.7 kW
≈ $7,710
Median price
$1.65/W
all years · 158 priced
Third-party owned
97%
lease / PPA
Battery attach
0%
First recorded
2007
Last recorded
2020

Track record

Install volume by year

2007
1
2017
9
2018
148
2019
3
2020
1

Recorded installs per year; prices by year are in the table below.

Pricing

Price by year (solar only)

YearPriced systemsCole Williams ElectricCalifornia medianvs state
2018145$1.65/W$4.01/W−59%
20179$1.34/W$4.05/W−67%

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 the last year of data. 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

DateLocationSizePriceOwnership
May 26, 2020Escondido, CA8.4 kW$11,969Third-party
Aug 5, 2019Marysville, CA8.4 kW$13,811Third-party
Jun 7, 2019Bell Canyon, CA18.9 kW$66,080Host-owned
Feb 5, 2019San Diego, CA7.4 kW$12,474Third-party
Nov 28, 2018Fontana, CA10.1 kW$19,404Third-party
Oct 11, 2018San Juan Capo, CA7.9 kW$13,142Third-party
Sep 20, 2018La Canada, CA25.1 kW$88,000Host-owned
Sep 12, 2018San Diego, CA4 kW$6,757Third-party
Aug 16, 2018Salinas, CA3.5 kW$5,430Third-party
Aug 14, 2018Richmond, CA2.8 kW$5,310Third-party

See all 162 installations →searchable & filterable; export to CSV with a free account

Service geography

Busiest cities

Fresno, CA 13Los Banos, CA 8Stockton, CA 7Moreno Valley, CA 6Richmond, CA 5Salinas, CA 4San Bernardino, CA 4Palmdale, CA 4

Record

Installer ID
PC-2884
First recorded install
Oct 5, 2007
Last recorded install
May 26, 2020
Priced records
158

Is this your company?

Owners can claim this profile free with a work email to keep the website and description current and post the company's own price figures beside ours.

If a record here isn't yours, a state is wrong, or a figure looks off, report a correction. We read every one and fix the record, usually within a few days.

How does Cole Williams Electric compare with other installers in California?

By recorded installations Cole Williams Electric ranks 1032nd among the 6,010 installers based in California with five or more records. Its all-years median price of $1.65/W is about 61% below the California median of $4.26/W. Its median system, 4.7 kW, is about 20% below the state median of 5.9 kW. 97% 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 Power Independence Electric (164), Avatar Solar (162) and Certified Solar Pros (162).

How has Cole Williams Electric's installation volume changed?

Cole Williams Electric's earliest dated installation on record is from 2007. It has recorded installations in 5 calendar years. The busiest year was 2018, with 148 installations. 2020, its latest year with records, has 1. Its median price per watt moved from $1.34/W in 2017 to $1.43/W in 2020. The most recent recorded installation is dated May 26, 2020. No installation in the public records is dated within the last three years.

Where does Cole Williams Electric install solar?

All recorded installations are in California. The cities with the most of its installations are Fresno, CA (13), Los Banos, CA (8), Stockton, CA (7), Moreno Valley, CA (6) and Richmond, CA (5).

Frequently asked questions

How many solar installations has Cole Williams Electric completed?

PanelCensus records 162 installations by Cole Williams Electric, from Oct 5, 2007 to May 26, 2020, totalling 889 kW of capacity. Public reporting varies by state, so the company's true total may be higher.

What does Cole Williams Electric charge for solar?

The median installed price across 158 priced systems from all years is $1.65/W before incentives (median system 4.7 kW, about $7,710). 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 Cole Williams Electric install solar?

All 162 recorded installations are in California, the most of them in Fresno.

Is Cole Williams Electric still installing solar?

The most recent installation attributed to Cole Williams Electric in the public records is dated May 26, 2020; 2020 has 1 recorded installation. Records reach PanelCensus months to a couple of years after installation, so recent activity may not appear yet.

Does Cole Williams Electric install leased or PPA solar systems?

157 recorded installations by Cole Williams Electric (97%) are third-party owned — a lease or power-purchase agreement; across California the share is 29%.

Does Cole Williams Electric install battery storage?

0 recorded installations by Cole Williams Electric (0%) include a battery.

Related installers and places

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, “Cole Williams Electric, solar installer (California)”, https://panelcensus.com/installers/california/cole-williams-electric-2884 (data as of September 21, 2026).