AUGUST 2016
Honeycomb Solar Thermal Collector

The Honeycomb Solar Thermal Collector (HSTC) uses a honeycomb insulating layer to minimize heat loss by suppressing convection. According to manufacturers, this honeycomb layer makes it particularly effective in cold climates, where many GSA facilities are located.

Researchers from the National Renewable Energy Laboratory (NREL) found that for standard domestic hot water applications where water is heated by an array of solar collectors and stored in a tank, the HSTC technology was up to 8% more efficient than typical flat-plate collectors.

Download Findings

• 1-page infographic

• 4-page brief

• NREL full report

View Webinar

• On-demand video

• Slides

• Q&A

Additional Resources

• Guidance: On-Site Commercial Solar PV Decision Guide (DOE, September 2014)

• Screen for renewable energy optimization: NREL REOpt tool

• For more information on the screening of GSA facilities, contact Emma Elgqvist, Emma.Elgqvist@nrel.gov