Constellation, GE Power Home Depot in DC

The 554-kilowatt project is the capital's largest solar rooftop array and will supply an estimated 35 to 40 percent of the store’s annual energy needs.
The Home Depot’s 554 kW solar array consists of more than 1,400 photovoltaic panels.

Constellation, an Exelon company, and General Electric have completed a 554-kilowatt (DC) solar generation project for The Home Depot’s Washington, D.C., store which is currently the capital’s largest single rooftop array, according to Energy Acuity data.

The system is anticipated to supply more than 9.9 million kilowatt-hours of electricity to The Home Depot over a 15-year period, which would account for 35-40 percent of the store’s annual energy use.

The joint project is the latest of 50 planned rooftop solar arrays The Home Depot is undertaking to reach its goal of utilizing 135 megawatts of alternative and renewable energy by 2020.

Long-term commitment

The solar project is located in the Brentwood neighborhood in northeast Washington and is part of Exelon’s 7-megawatt solar generation commitment in the District when it merged with Pepco Holdings Inc. a few years ago. It also marks the first of multiple Constellation-owned, GE-developed rooftop arrays for The Home Depot, which will include solar on additional stores in Prince George’s and Montgomery counties in Maryland by the end of 2018.

GE’s Solar Development team designed and developed the project and will oversee operations and maintenance over the duration of the 15-year PPA. The solar power system consists of more than 1,400 LG photovoltaic panels and is expected to fend off more than 7,300 metric tons of carbon dioxide during the full term of operation, equivalent to taking 1,578 passenger vehicles off the road, according to U.S. Environmental Protection Agency data.

“Constellation is dedicated to supporting renewable energy in Washington, D.C., and is proud that this project enabled part of Exelon and Pepco Holdings Inc.’s commitment to District stakeholders to go online several months ahead of schedule,” Brendon Quinlivan, executive director, Distributed Energy Origination, Constellation, said in a statement.


Image courtesy of Constellation