Thomas A. Tidemanson Public Works Building (Ab 802)

How does Thomas A. Tidemanson Public Works Building (Ab 802) compare with other office buildings in California?

The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Thomas A. Tidemanson Public Works Building (Ab 802)'s ENERGY STAR score of 78 compares with an average of 75 across the 4,912 that report a score; it scores higher than 39% of them and lower than 59%. Its site EUI of 58.5 kBtu/ft² is roughly in line with the average of 56.4 kBtu/ft². Its emissions intensity of 3.9 kgCO₂e/ft² is roughly in line with the group average of 3.6 kgCO₂e/ft².

At 528,668 sq ft, it is about 248% above the average floor area of 151,937 sq ft for those buildings. It was built in 1971, 14 years earlier than the group's average year built (1985). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has Thomas A. Tidemanson Public Works Building (Ab 802)'s energy performance changed over time?

BuildingCensus holds 4 California disclosures for Thomas A. Tidemanson Public Works Building (Ab 802), covering report years 2020–2023. Its ENERGY STAR score went from 84 in 2020 to 78 in 2023 (-6 points); its best year on file was 2021, at 88. Site EUI moved from 51.8 kBtu/ft² (2020) to 58.5 kBtu/ft² (2023), an 13% increase. Reported emissions went from 1,548 tCO₂e to 2,037 tCO₂e over the same span (up 32%).

What does an ENERGY STAR score of 78 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 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 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. Thomas A. Tidemanson Public Works Building (Ab 802)'s 58.5 kBtu/ft² across 528,668 sq ft works out to about 30.9 billion Btu (9,064 MWh-equivalent) in 2023. The disclosure also reports 5,740,554 kWh of electricity and 121,985 therms of natural gas for the year.

Which law requires Thomas A. Tidemanson Public Works Building (Ab 802) to report its energy use?

Thomas A. Tidemanson Public Works Building (Ab 802) 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 2023 disclosure (source record california:16069925:2023). 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.