Cooling Model (3PC)
Fit a change-point cooling model to monthly energy use: E = b + w_d · max(Tₐ − T_c, 0). Enter your months of average temperature and energy, then fit for the base load, weather slope, and balance-point temperature.
| # | Label | Avg temp | Energy (kWh) |
|---|---|---|---|
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Model results
Base load-
Slope-
Changepoint-
R²-
The base load b is the weather-independent use; the slope is kWh per °F per month above the changepoint. °C inputs are converted to °F internally. For the best fit, include both cool and hot months. Runs entirely in your browser.