Seattle Prep - Peyton/Adelphia Memorial Hall

How does Seattle Prep - Peyton/Adelphia Memorial Hall compare with other K-12 school buildings in Seattle?

The latest disclosures cover 153 K-12 school buildings in Seattle, out of 3,871 buildings citywide. Seattle Prep - Peyton/Adelphia Memorial Hall's ENERGY STAR score of 60 compares with an average of 71 across the 152 that report a score; it scores higher than 22% of them and lower than 78%. Its site EUI of 56.7 kBtu/ft² is about 48% above the average of 38.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.7 kgCO₂e/ft² is about 55% above the group average of 1.1 kgCO₂e/ft².

At 63,600 sq ft, it is about 20% below the average floor area of 79,329 sq ft for those buildings. Its 1968 construction date is close to the group's average year built (1970). 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 Seattle Prep - Peyton/Adelphia Memorial Hall's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Seattle Prep - Peyton/Adelphia Memorial Hall, covering report years 2015–2025. Its ENERGY STAR score went from 34 in 2015 to 60 in 2025 (+26 points); its best year on file was 2020, at 72. Site EUI moved from 68.2 kBtu/ft² (2015) to 56.7 kBtu/ft² (2025), a 17% decrease. Reported emissions went from 77 tCO₂e to 105 tCO₂e over the same span (up 36%).

What does an ENERGY STAR score of 60 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 60 means the building performs better than about 60% of its national peers. BuildingCensus bands the score into report-card grades; 60 falls in band C — below median (55–69). It sits 15 points below 75, the threshold for ENERGY STAR certification. In Seattle, 69% 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. Seattle Prep - Peyton/Adelphia Memorial Hall's 56.7 kBtu/ft² across 63,600 sq ft works out to about 3.6 billion Btu (1,057 MWh-equivalent) in 2025. Its source EUI of 107.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 496,444 kWh of electricity and 18,017 therms of natural gas for the year.

Which law requires Seattle Prep - Peyton/Adelphia Memorial Hall to report its energy use?

Seattle Prep - Peyton/Adelphia Memorial Hall reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:21794:2025). Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.