Solar installer

Sunpower Capital Services

Installed solar on 1,699 homes since 2023 in Illinois. Latest install on record: September 2026.

Homes since 2023: 1,699
Median price: —
Typical system: —
Leased or PPA: —

Price

Public records don’t show enough systems bought outright from Sunpower Capital Services (at least 10) for a price. Ask for a quote in dollars per watt to compare it with the Illinois median.

Where it installs

Counties with homes it installed since 2023, busiest first.

Cook County, IL · 400 Will County, IL · 207 DuPage County, IL · 162 Ogle County, IL · 151 Lake County, IL · 146 Kane County, IL · 128 Winnebago County, IL · 126 Kendall County, IL · 84 McHenry County, IL · 83 Stephenson County, IL · 67 Boone County, IL · 41 DeKalb County, IL · 39 Lee County, IL · 37 LaSalle County, IL · 12 Grundy County, IL · 5 Carroll County, IL · 4 Kankakee County, IL · 4 Jo Daviess County, IL · 2 Marshall County, IL · 1

By state

State	Homes	Median
Illinois	1,699	—

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.