502 S Winchester Blvd

How does 502 S Winchester Blvd compare with other office buildings in San José?

The latest disclosures cover 408 office buildings in San José, out of 1,790 buildings citywide. 502 S Winchester Blvd's ENERGY STAR score of 90 compares with an average of 67 across the 283 that report a score; it scores higher than 75% of them and lower than 23%. Its site EUI of 41.5 kBtu/ft² is about 36% below the average of 64.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 102,556 sq ft, it is roughly in line with the average floor area of 95,555 sq ft for those buildings. It was built in 2001, 15 years later than the group's average year built (1986). 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 502 S Winchester Blvd's energy performance changed over time?

BuildingCensus holds 7 San José disclosures for 502 S Winchester Blvd, covering report years 2018–2024. Its ENERGY STAR score went from 61 in 2018 to 90 in 2024 (+29 points). Site EUI moved from 88.6 kBtu/ft² (2018) to 41.5 kBtu/ft² (2024), a 53% decrease. Reported emissions went from 452 tCO₂e to 259 tCO₂e over the same span (down 43%).

What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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 San José, 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. 502 S Winchester Blvd's 41.5 kBtu/ft² across 102,556 sq ft works out to about 4.3 billion Btu (1,247 MWh-equivalent) in 2024. Its source EUI of 85.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 725,492 kWh of electricity, 17,826 therms of natural gas and 1,308 thousand gallons of water for the year.

Which law requires 502 S Winchester Blvd to report its energy use?

502 S Winchester Blvd reports under San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance), the legal basis of San José's Energy and Water Building Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record san_jose:1074-0-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.