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EnergyPro includes the ability to calculate energy design ratings (EDR) as required in the CALGreen energy provisions (Title 24, Part 11) for new construction projects. Note that this rating will not appear for additions and alterations. Please review page 2 of the CF1R for more information. You will find two EDR scores, an EDRe which represents the EDR efficiency of the building alone, and an EDRt, the EDR total efficiency of the building, which includes the savings contributions from Solar PV and batteries. For the 2019 code, new construction projects are required to comply with both scores.
The EDR is an alternate way to express the energy performance of a home using a scoring system where 100 represents the performance of a building meeting the envelope requirements of the 2006 International Energy Conservation Code (IECC). A score of zero or less represents the energy performance of a building that combines high levels of energy efficiency and/or renewable generation to “zero out” its TDV energy use.
The EDR is similar to the energy rating index in the 2015 IECC. The lower the score, the more efficient the building.
Buildings complying with the current standards are more efficient than the 2006 IECC, so newly constructed buildings will have EDR scores well below 100 (if an EDR were calculated for an older, inefficient home, the score could go above 100).
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