Stoneway Electric Supply

How does Stoneway Electric Supply compare with other distribution center buildings in Seattle?

The latest disclosures cover 38 distribution center buildings in Seattle, out of 3,871 buildings citywide. Stoneway Electric Supply's ENERGY STAR score of 76 compares with an average of 62 across the 33 that report a score; it scores higher than 67% of them and lower than 27%. Its site EUI of 13.4 kBtu/ft² is about half of the average of 27.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 83% below the group average of 0.6 kgCO₂e/ft².

At 28,144 sq ft, it is about 55% below the average floor area of 62,568 sq ft for those buildings. Its 1966 construction date is close to the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 4,082 distribution center buildings average an ENERGY STAR score of 65 and a site EUI of 24.2 kBtu/ft².

How has Stoneway Electric Supply's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Stoneway Electric Supply, covering report years 2015–2025. Its ENERGY STAR score went from 30 in 2015 to 76 in 2025 (+46 points). Site EUI moved from 26.6 kBtu/ft² (2015) to 13.4 kBtu/ft² (2025), a 50% decrease. Reported emissions went from 8 tCO₂e to 3 tCO₂e over the same span (down 64%).

What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 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 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. Stoneway Electric Supply's 13.4 kBtu/ft² across 28,144 sq ft works out to about 0.4 billion Btu (111 MWh-equivalent) in 2025. Its source EUI of 36.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 107,877 kWh of electricity and 114 therms of natural gas for the year.

Which law requires Stoneway Electric Supply to report its energy use?

Stoneway Electric Supply 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:24348:2025). 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.