Similar to the miles per gallon rating for cars, a group in Oregon has created Energy Performance Score to allow home buyers a way of measuring the energy efficiency of their new house. For all participating homes, both the energy usage and carbon emissions are calculated from electricity and natural gas consumed. Other factors taken into account include insulation, appliances and the regional weather. In all, the audit collects and analyzes 32 data points. These numbers are then compared with the state average, and potential upgrades are presented for how to improve the score. When multiple houses are scored, it allows buyers to evaluate how much they can expect to spend on energy at a given house. The program was developed by Earth Advantage Institute and is already
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New System Rates Home Energy Efficiency