Assessing Energy Performance And Costs In Massachusetts Schools
The plots below show the distributions of annual energy use and energy cost intensities
at 53 K-12 schools in a major city in Massachusetts. The data used for these plots reflect energy use and cost data collected at Massachusetts schools
for the fiscal year 2004.
To rate your Massachusetts school using the plots, you will need:
Gross floor area of your school.
Total annual energy use for all fuels at your school (electricity, gas, etc.)
Total annual energy costs for all fuels at your school (electricity, gas, etc.)
For rating energy cost, calculate the annual energy cost intensity of your school by dividing total annual energy costs by the
gross floor area of your school ($/sqft). Enter the cost plot on the x-axis at your cost intensity. Read up to the
curve and then left to find your rating. The rating for your school corresponds to the percent of K-12 schools in Massachusetts
that are more energy-cost-intensive than yours. The higher your rating, the better your school's energy cost performance.
For rating energy performance, calculate the annual source energy use intensity (EUI) of your school using the Total Source Energy Use Worksheet
available under "Benchmark Your Building" at this website. Enter the energy performance plot on the x-axis at your EUI value. Read up to the
curve and then left to find your rating. The rating for your school corresponds to the percent of K-12 schools in Massachusetts
that are less efficient than yours. The higher your rating, the better your school's energy performance.
These tools can help you spot exceptional schools and at the other extreme, those schools that can most benefit from energy-related
improvements. Schools rating below 30 often have very large energy cost reduction potentials.
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