Ayer Es

How does Ayer Es compare with other K-12 school buildings in California?

The latest disclosures cover 2,128 K-12 school buildings in California, out of 40,029 buildings citywide. Ayer Es's ENERGY STAR score of 83 compares with an average of 74 across the 2,016 that report a score; it scores higher than 54% of them and lower than 45%. Its site EUI of 42.3 kBtu/ft² is about 22% above the average of 34.6 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 16% below the group average of 2.0 kgCO₂e/ft².

At 62,804 sq ft, it is about half of the average floor area of 129,123 sq ft for those buildings. It was built in 2000, 24 years later than the group's average year built (1976). 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 Ayer Es's energy performance changed over time?

BuildingCensus holds 2 California disclosures for Ayer Es, covering report years 2023–2024. Its ENERGY STAR score went from 86 in 2023 to 83 in 2024 (-3 points); its best year on file was 2023, at 86. Site EUI moved from 42.3 kBtu/ft² (2023) to 42.3 kBtu/ft² (2024), an 0% increase. Reported emissions went from 109 tCO₂e to 106 tCO₂e over the same span (down 3%).

What does an ENERGY STAR score of 83 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 83 means the building performs better than about 83% of its national peers. BuildingCensus bands the score into report-card grades; 83 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 California, 65% 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. Ayer Es's 42.3 kBtu/ft² across 62,804 sq ft works out to about 2.7 billion Btu (779 MWh-equivalent) in 2024. The disclosure also reports 466,721 kWh of electricity for the year.

Which law requires Ayer Es to report its energy use?

Ayer Es reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:34522484:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.