MySolarCheck

SunPower Solar Panels: Observed Use & Cost Data

Share of Named Mentions
16.66%
Observed Mentions
331,446
Median System Cost
$4.49/W
Median Reported Efficiency
20.9%

Median Installed Cost per Watt

$4.49per watt$0.5$5.0

Median full-system price in usable records naming SunPower; this is not the panel-only price.

Share of Named Records by Year

Share of named records (%)

201820192020202120222023

States with the Most Named SunPower Records

StateObserved Records
California266,438
New York23,979
Arizona15,482
Massachusetts8,663
Connecticut5,852
New Mexico3,041

Source: LBNL Tracking the Sun 2024. Shares use normalized brand mentions in covered records, not total U.S. market share. Cost is the median full-system price in usable records, not a panel price or installer quote. Coverage is through 2023.