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.
As a component of integrated lighting systems, daylight harvesting offers the opportunity to reduce lighting energy consumption by using natural light to offset electric light in perimeter workspaces. GSA’s GPG program assessed the performance of daylight harvesting at five federal building sites, and found an average annual energy savings of 27% and simple payback as low as four years. View full-size infographic. [PDF - 227 KB]
Reference above to any specific commercial product, process or service does not constitute or imply its endorsement, recommendation or favoring by the U.S. government or any agency thereof.