Home Energy Efficiency Score Calculator
Comprehensive Score
Full home energy efficiency assessment
Quick Assessment
Formula
Score = Σ(Component Score × Weight) + Age Adjustment; Weights: Insulation 25%, HVAC 25%, Windows 15%, Air Sealing 15%, Water Heater 10%, Lighting 10%
Frequently Asked Questions
What is a good home energy score?
A score of 80+ (A rating) indicates an efficient home. The DOE Home Energy Score uses a 1-10 scale, but our 1-100 scale provides more granularity. Scores below 50 suggest significant efficiency improvements are possible. The average US home scores around 50-60.
How can I improve my home energy score?
The biggest impacts come from: (1) Adding insulation, especially in the attic (R-49+), (2) Air sealing gaps and cracks, (3) Upgrading to a heat pump HVAC system, (4) Installing double or triple-pane windows, and (5) Switching to LED lighting. Start with insulation and air sealing for the best ROI.
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