An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock
( )
or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Photovoltaic (PV) systems use photovoltaic cells to directly convert sunlight into electricity. A commercial-scale PV system and four smaller laboratory PV systems were tested at the Bean Federal Center in Indianapolis, Indiana. PV is effective even in four-season climates with cloudy skies. Price should drive PV selection. View full-size infographic. [PDF - 254 KB]
Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the United States Government or any agency thereof.