Solar installer

Ilum Solar

Name: Ilum Solar
Address: Sacramento, CA, 95834, US
Telephone: (888) 696-4586

Based at Sacramento, CA 95834. Installed solar on 944 homes since 2023 in California. Installing since 2016. Latest install on record: June 2026.

(888) 696-4586

Homes since 2023: 944
Median price: $4.79/W
Typical system: 7.7 kW
Leased or PPA: 0%

Price

Homes that bought their system from Ilum Solar paid a median $4.79/W installed, and the middle half paid $3.91/W–$5.72/W (443 systems since 2023, before incentives). That's $0.72 a watt above the California median of $4.07/W.

46% of its recent systems included a battery.

Where it installs

Counties with homes it installed since 2023, busiest first.

Kern County, CA · 165 Riverside County, CA · 138 Los Angeles County, CA · 136 Orange County, CA · 82 San Luis Obispo County, CA · 78 San Bernardino County, CA · 57 San Diego County, CA · 49 Santa Barbara County, CA · 32 Santa Clara County, CA · 26 Contra Costa County, CA · 17 Alameda County, CA · 16 Fresno County, CA · 14 Butte County, CA · 13 Tulare County, CA · 13 San Joaquin County, CA · 11 San Mateo County, CA · 8 Solano County, CA · 8 Yolo County, CA · 8 Placer County, CA · 6 Sonoma County, CA · 6 Tehama County, CA · 6 Ventura County, CA · 6 Humboldt County, CA · 5 Kings County, CA · 4 Lake County, CA · 4 Marin County, CA · 4 San Francisco County, CA · 4 Shasta County, CA · 4 Amador County, CA · 3 El Dorado County, CA · 3 Monterey County, CA · 3 Tuolumne County, CA · 3 Calaveras County, CA · 2 Merced County, CA · 2 Sutter County, CA · 2 Napa County, CA · 1 Plumas County, CA · 1 Yuba County, CA · 1

By state

State	Homes	Median
California	944	$4.79/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.