Oakwood Shores 2B & 2D

How does Oakwood Shores 2B & 2D compare with other multifamily housing buildings in Chicago?

The latest disclosures cover 1,515 multifamily housing buildings in Chicago, out of 3,852 buildings citywide. Oakwood Shores 2B & 2D's ENERGY STAR score of 98 compares with an average of 62 across the 1,472 that report a score; it scores higher than 93% of them and lower than 4%. Its site EUI of 36.0 kBtu/ft² is about half of the average of 72.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 31% below the group average of 5.8 kgCO₂e/ft².

At 221,040 sq ft, it is roughly in line with the average floor area of 206,097 sq ft for those buildings. It was built in 2013, 42 years later than the group's average year built (1971). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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 Chicago, 35% 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. Oakwood Shores 2B & 2D's 36.0 kBtu/ft² across 221,040 sq ft works out to about 8 billion Btu (2,332 MWh-equivalent) in 2018. Its source EUI of 69.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,182,140 kWh of electricity, 39,203 therms of natural gas and 1,069 thousand gallons of water for the year.

Which law requires Oakwood Shores 2B & 2D to report its energy use?

Oakwood Shores 2B & 2D reports under the Building Energy Use Benchmarking Ordinance, the legal basis of the Chicago Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2018 disclosure (source record chicago:256079:2018). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.