The Wharf DC 800 Maine Ave SW

How does The Wharf DC 800 Maine Ave SW compare with other office buildings in Washington, DC?

The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. The Wharf DC 800 Maine Ave SW's ENERGY STAR score of 82 compares with an average of 70 across the 774 that report a score; it scores higher than 70% of them and lower than 28%. Its site EUI of 40.6 kBtu/ft² is about 27% below the average of 55.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.7 kgCO₂e/ft² is about 26% below the group average of 5.0 kgCO₂e/ft².

At 244,391 sq ft, it is about 13% above the average floor area of 216,135 sq ft for those buildings. It was built in 2017, 43 years later than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has The Wharf DC 800 Maine Ave SW's energy performance changed over time?

BuildingCensus holds 5 Washington, DC disclosures for The Wharf DC 800 Maine Ave SW, covering report years 2019–2023. Its ENERGY STAR score went from 78 in 2019 to 82 in 2023 (+4 points); its best year on file was 2020, at 89. Site EUI moved from 44.1 kBtu/ft² (2019) to 40.6 kBtu/ft² (2023), a 8% decrease. Reported emissions went from 972 tCO₂e to 892 tCO₂e over the same span (down 8%).

What does an ENERGY STAR score of 82 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 82 means the building performs better than about 82% of its national peers. BuildingCensus bands the score into report-card grades; 82 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. The Wharf DC 800 Maine Ave SW's 40.6 kBtu/ft² across 244,391 sq ft works out to about 9.9 billion Btu (2,908 MWh-equivalent) in 2023. Its source EUI of 113.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,907,764 kWh of electricity, 101 therms of natural gas and 3,233 thousand gallons of water for the year.

Which law requires The Wharf DC 800 Maine Ave SW to report its energy use?

The Wharf DC 800 Maine Ave SW 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 2023 disclosure (source record dc:PM6211760:2023). 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.