Solar installer

Harness Building Solutions

Name: Harness Building Solutions
Address: Norco, CA, 92860, US
Telephone: (951) 310-2812

Based at Norco, CA 92860. Installed solar on 204 homes since 2023 in California. Installing since 2022. Latest install on record: March 2026.

(951) 310-2812

Homes since 2023: 204
Median price: $5.69/W
Typical system: 7.0 kW
Leased or PPA: 0%

Price

Homes that bought their system from Harness Building Solutions paid a median $5.69/W installed, and the middle half paid $4.89/W–$6.60/W (185 systems since 2023, before incentives). That's $1.62 a watt above the California median of $4.07/W.

2% of its recent systems included a battery.

Where it installs

Counties with homes it installed since 2023, busiest first.

Orange County, CA · 55 Los Angeles County, CA · 40 Riverside County, CA · 37 San Bernardino County, CA · 23 Fresno County, CA · 22 Kings County, CA · 8 Tulare County, CA · 7 Alameda County, CA · 2 Contra Costa County, CA · 2 Madera County, CA · 2 Calaveras County, CA · 1 Kern County, CA · 1 Merced County, CA · 1 Monterey County, CA · 1 Stanislaus County, CA · 1

By state

State	Homes	Median
California	204	$5.69/W

Homes installed since 2023.

Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.