Solar Heating & Cooling - Case Study
www.seia.org/shc
Home | Washington, D.C.
System Information Location: Washington, D.C., USA
Application: DHW, Pool & Space Heating
Rated Power Output: 15.5 kW
Yearly Energy Output: 73 MWh
Metering: Net Zero Meter
Yearly CO2 Reduction: 10,000 kg / 22,200 lbs
Solar Collectors: 32xSDM100 Hybrid PV/Therm
System Format: Closed loop
Backup Heating: Gas boiler Aerial view of roof-top hybrid
PV-and-thermal panels
Project Introduction In January of 2016, a 15.5 kW SunDrum Solar
HarvestHP thermal residential system was commissioned on a
2,100sqft home with a 500sqft outdoor pool in the Washington, D.C.
area. The system now is the primary source of space heating and
cooling as well as domestic hot water and pool heating. The system
consists of 46 SunPower solar PV modules, 32 of which are hybrid
PV/Thermal panels equipped with SDM-100 collectors.
System Description & Performance The collectors absorb
thermal energy from PV panels, cooling them by 30-40°F. Space
cooling is supplied by transferring heat from the house into the
pool and ejecting excessive heat through the collectors. Thanks to
this configuration the system stays active year-round and can run
24 hours a day. In the first 12 months of operation the Harvest HP
reduced the annual energy bill from 80MWh to 7MWh. The system
fulfilled record-breaking 92% of the home’s space, water and pool
heating needs and provided 100% of the space cooling.
Contact Information SunDrum Solar | www.SunDrumSolar.com Capital
SunGroup | www.CapitalSunGroup.com
NetZero Meter | www.NetZeroMeter.com
Piping to connect DHW, pool-heating and space-heating
