Constellation and GE complete largest rooftop array in Washington, D.C.

Constellation, an Exelon company, and GE announced the completion of a 554-kWdc solar generation project for The Home Depot’s Washington, D.C., store. The solar project, now the largest single rooftop array in the District*, is expected to supply more than 9.9 million kWh of electricity to The Home Depot over a 15-year period, accounting for an anticipated 35-40% of the store’s annual energy use. The Home Depot will purchase the electricity generated by the system through a 15-year PPA with Constellation. GE’s Solar Development team designed the project, led the construction process and will be responsible for operations and maintenance over the duration of the contract. The solar power system comprised of more than 1,400 LG photovoltaic panels is expected to avoid more than 7,300 metric tons of carbon dioxide during the full term of operation and have the same benefit to the environment as taking 1,578 passenger vehicles off the road, according to U.S. Environmental Protection Agency data.