AB Building

How does AB Building compare with other hospital (general medical & surgical) buildings in New York City?

The latest disclosures cover 226 hospital (general medical & surgical) buildings in New York City, out of 48,310 buildings citywide. AB Building's ENERGY STAR score of 17 compares with an average of 61 across the 113 that report a score; it scores higher than 19% of them and lower than 79%. Its site EUI of 324.2 kBtu/ft² is about 30% above the average of 248.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 27.8 kgCO₂e/ft² is about 47% above the group average of 18.9 kgCO₂e/ft².

At 259,635 sq ft, it is about 42% below the average floor area of 450,487 sq ft for those buildings. It was built in 1987, 35 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 748 hospital (general medical & surgical) buildings average an ENERGY STAR score of 59 and a site EUI of 238.7 kBtu/ft².

What does an ENERGY STAR score of 17 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 17 means the building performs better than about 17% of its national peers. BuildingCensus bands the score into report-card grades; 17 falls in band D — lowest band (1–54). It sits 58 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% 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. AB Building's 324.2 kBtu/ft² across 259,635 sq ft works out to about 84.2 billion Btu (24,669 MWh-equivalent) in 2024. Its source EUI of 639.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 13,007,409 kWh of electricity and 397,981 therms of natural gas for the year.

Which law requires AB Building to report its energy use?

AB Building reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:1277231:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.