Galen Terrace: 2308 Green Street Southeast

How does Galen Terrace: 2308 Green Street Southeast compare with other multifamily housing buildings in Washington, DC?

The latest disclosures cover 1,799 multifamily housing buildings in Washington, DC, out of 6,870 buildings citywide. Galen Terrace: 2308 Green Street Southeast's ENERGY STAR score of 56 compares with an average of 72 across the 1,618 that report a score; it scores higher than 24% of them and lower than 76%. Its site EUI of 54.9 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 4.1 kgCO₂e/ft² is roughly in line with the group average of 3.8 kgCO₂e/ft².

At 28,359 sq ft, it is about 79% below the average floor area of 136,346 sq ft for those buildings. It was built in 1969, 4 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

How has Galen Terrace: 2308 Green Street Southeast's energy performance changed over time?

BuildingCensus holds 3 Washington, DC disclosures for Galen Terrace: 2308 Green Street Southeast, covering report years 2022–2024. Its ENERGY STAR score went from 59 in 2022 to 56 in 2024 (-3 points); its best year on file was 2023, at 72. Site EUI moved from 54.8 kBtu/ft² (2022) to 54.9 kBtu/ft² (2024), an 0% increase. Reported emissions went from 116 tCO₂e to 116 tCO₂e over the same span (up 0%).

What does an ENERGY STAR score of 56 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 56 means the building performs better than about 56% of its national peers. BuildingCensus bands the score into report-card grades; 56 falls in band C — below median (55–69). It sits 19 points below 75, the threshold for ENERGY STAR certification. In Washington, DC, 47% of scored buildings are at 75 or above.

Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Galen Terrace: 2308 Green Street Southeast's 54.9 kBtu/ft² across 28,359 sq ft works out to about 1.6 billion Btu (456 MWh-equivalent) in 2024. Its source EUI of 116.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 280,615 kWh of electricity, 6,005 therms of natural gas and 2,475 thousand gallons of water for the year.

Which law requires Galen Terrace: 2308 Green Street Southeast to report its energy use?

Galen Terrace: 2308 Green Street Southeast reports under the Clean and Affordable Energy Act / BEPS, the legal basis of Washington, DC's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record dc:PM23385983:2024). DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve over compliance cycles (the first ends December 31, 2026; later cycles run five years), with penalties for buildings that fail to meet their pathway.