Estimating Energy Savings Resulting from Strategic Energy Management Programs:
Methodology Comparison
Evaluators typically estimate energy savings associated with SEM programs using regression analysis to model facility energy consumption as a function of weather and other variables. They then use the regression models to compare energy consumption before and
after program implementation. Evaluators can choose among several regression model frameworks, with the
accuracy of results depending on the model selected. Therefore, selecting the right framework proves integral to
completing an accurate, robust evaluation. Testing frameworks to determine those best suited to evaluate savings
for a particular facility (and under a specific set of circumstances) presents a challenge as true energy savings value
at a facility remain unknown.
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Authors:
Andrew Bernath, The Cadmus Group, Portland, OR
Maggie Buffum, The Cadmus Group, Portland, OR