St Johns Preparatory High School

How does St Johns Preparatory High School compare with other K-12 school buildings in New York City?

The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. St Johns Preparatory High School's ENERGY STAR score of 96 compares with an average of 64 across the 2,052 that report a score; it scores higher than 92% of them and lower than 7%. Its site EUI of 36.9 kBtu/ft² is about 40% below the average of 61.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.3 kgCO₂e/ft² is about half of the group average of 4.8 kgCO₂e/ft².

At 348,071 sq ft, it is about 243% above the average floor area of 101,338 sq ft for those buildings. It was built in 1962, 9 years later than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².

How has St Johns Preparatory High School's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for St Johns Preparatory High School, covering report years 2022–2024. Its ENERGY STAR score went from 98 in 2022 to 96 in 2024 (-2 points); its best year on file was 2022, at 98. Site EUI moved from 38.9 kBtu/ft² (2022) to 36.9 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 740 tCO₂e to 812 tCO₂e over the same span (up 10%).

What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 falls in band A — high performer (85–100). 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 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. St Johns Preparatory High School's 36.9 kBtu/ft² across 348,071 sq ft works out to about 12.8 billion Btu (3,764 MWh-equivalent) in 2024. Its source EUI of 49.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 617,614 kWh of electricity, 107,302 therms of natural gas and 1,027 thousand gallons of water for the year.

Which law requires St Johns Preparatory High School to report its energy use?

St Johns Preparatory High School 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:6564031:2024). 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.