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Variable Degree Days for monthly models #69
Proposed test methodology:
The remaining 598 buildings that had been fit using weather-sensitive models using both fixed and variable balance points, all saw improved model fits as captured by the model R-squared (mean R-squared 0.480 using fixed balance point vs. 0.495 using variable balance points). Figure 1 shows that some model fits remained almost unchanged, however, most model fits improved (in some cases, quite drastically).