Carnegie Endowment for International Peace

How does Carnegie Endowment for International Peace compare with other office buildings in Washington, DC?

The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. Carnegie Endowment for International Peace's ENERGY STAR score of 81 compares with an average of 70 across the 774 that report a score; it scores higher than 66% of them and lower than 30%. Its site EUI of 40.9 kBtu/ft² is about 26% 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 3.6 kgCO₂e/ft² is about 28% below the group average of 5.0 kgCO₂e/ft².

At 98,520 sq ft, it is about half of the average floor area of 216,135 sq ft for those buildings. It was built in 1997, 23 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 Carnegie Endowment for International Peace's energy performance changed over time?

BuildingCensus holds 11 Washington, DC disclosures for Carnegie Endowment for International Peace, covering report years 2014–2024. Its ENERGY STAR score was 81 in both 2014 and 2024. Site EUI moved from 55.0 kBtu/ft² (2014) to 40.9 kBtu/ft² (2024), a 26% decrease. Reported emissions went from 658 tCO₂e to 353 tCO₂e over the same span (down 46%).

What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 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. Carnegie Endowment for International Peace's 40.9 kBtu/ft² across 98,520 sq ft works out to about 4 billion Btu (1,181 MWh-equivalent) in 2024. Its source EUI of 114.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,179,735 kWh of electricity, 0 therms of natural gas and 346 thousand gallons of water for the year.

Which law requires Carnegie Endowment for International Peace to report its energy use?

Carnegie Endowment for International Peace 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:PM2558899:2024). 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.