Solar installer

Sunpeak

Installed solar on 26 homes since 2023 in 2 states. Installing since 2015. Latest install on record: December 2025.

Homes since 2023: 26
Median price: $3.01/W
Typical system: 11.8 kW
Leased or PPA: 0%

Price

Homes that bought their system from Sunpeak paid a median $3.01/W installed, and the middle half paid $3.01/W–$3.82/W (15 systems since 2023, before incentives). That's $0.91 a watt below the Wisconsin median of $3.92/W.

Where it installs

Counties with homes it installed since 2023, busiest first.

Dane County, WI · 21 Lake County, IL · 1 Milwaukee County, WI · 1 Racine County, WI · 1 Sauk County, WI · 1 Walworth County, WI · 1

By state

State	Homes	Median
Wisconsin	25	$3.01/W
Illinois	1	—

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.