National Solar Thermal Test Facility

The National Solar Thermal Test Facility is a research complex in New Mexico that uses hundreds of moving mirrors to focus sunlight onto a tall central tower. These mirrors track the sky and redirect the concentrated heat to testing stations where scientists experiment with new solar technologies.

The facility was established in 1978 by the U.S. Department of Energy as a pioneering site for concentrated solar power research. It became an important location for testing and improving solar technology systems across the country.

Scientists and researchers from universities, government agencies, and private companies collaborate at this facility to advance solar energy technologies.

The site is located in a sunny region of New Mexico where most days offer clear skies. Visitors should bring sun protection and expect large open areas with minimal shade.

Each heliostat in the facility maintains 96 percent reflectivity across 37 square meters, directing concentrated sunlight toward experimental testing areas.