Building Energy Use Reporting

Energy Use Disclosure Report

The Cambridge City Council passed a Building Energy Use Disclosure Ordinance in July 2014. The ordinance is a key step in efforts to reduce Cambridge's greenhouse gas (GHG) emissions and requires large property owners to track and report annual energy use to the City.

Cambridge reports energy use data for City-owned buildings that contain at least 10,000 square feet of floor area. See links below:

  2015 Municipal Energy Use Disclosure Report
(PDF)

  2014 Municipal Energy Use Disclosure Report (PDF)

  2013 Municipal Energy Use Disclosure Report (PDF)


How Data Are Reported


Energy Use report data use the U.S. EPA’s ENERGY STAR Portfolio Manager online management tool to report on energy use intensity (i.e., energy use per square foot), greenhouse gas emissions, and other metrics. Portfolio Manager applies a complex analytic model to compare and rank similar types of buildings across the country and over time by adjusting for differences in weather, climate and use characteristics, such as number of operating hours and number of computers.

K-12 schools and office buildings are eligible for a “benchmarking score” of 1 to 100. A score of 50 means that the building performs better than 50% of similar-type buildings nationwide; a score of 75 indicates better performance than 75% of similar-type buildings nationwide, etc.

ENERGY STAR scores and energy use intensity can be used to compare building performance against a yearly baseline, national medians or similar buildings within a portfolio.

Cambridge Schools

The chart below displays 2014 and 2015 ENERGY STAR benchmarking scores for Cambridge Schools. In both 2014 and 2015 the median score for Cambridge Schools was 74, higher than the national median of 50 for K-12 schools. 

Cambridge Schools Energy Star Scores med

More information about the Building Energy Use Disclosure Ordinance can be found on the Community Development Department’s web page.


 

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