Westin DC

How does Westin DC compare with other hotel buildings in Washington, DC?

The latest disclosures cover 257 hotel buildings in Washington, DC, out of 6,870 buildings citywide. Westin DC's ENERGY STAR score of 82 compares with an average of 58 across the 251 that report a score; it scores higher than 80% of them and lower than 19%. Its site EUI of 66.1 kBtu/ft² is about 25% below the average of 87.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.0 kgCO₂e/ft² is about 28% below the group average of 6.9 kgCO₂e/ft².

At 330,100 sq ft, it is about 45% above the average floor area of 227,860 sq ft for those buildings. It was built in 1982, 8 years later than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².

How has Westin DC's energy performance changed over time?

BuildingCensus holds 7 Washington, DC disclosures for Westin DC, covering report years 2014, 2016, 2017, 2018, 2019, 2020, 2021. Its ENERGY STAR score went from 45 in 2014 to 82 in 2021 (+37 points). Site EUI moved from 97.9 kBtu/ft² (2014) to 66.1 kBtu/ft² (2021), a 32% decrease. Reported emissions went from 3,005 tCO₂e to 1,660 tCO₂e over the same span (down 45%).

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. Westin DC's 66.1 kBtu/ft² across 330,100 sq ft works out to about 21.8 billion Btu (6,395 MWh-equivalent) in 2021. Its source EUI of 136.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,687,720 kWh of electricity, 92,472 therms of natural gas and 9,916 thousand gallons of water for the year.

Which law requires Westin DC to report its energy use?

Westin DC 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 2021 disclosure (source record dc:PM4475462:2021). 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.