Section RC102 - ZERO ENERGY PATHWAYRC102 Replace Section RC102 and Table RC102.2 as follows:
RC102.1General. New zero energy buildings shall comply with Section RC102.2 and demonstrate a certified HERS rating of 0 or less and comply with Section R406, or complete Design Certification to the Phius ZERO standard and comply with Section R405.RC102.2Energy Rating Index Zero Energy Score. Compliance with this section requires that the final HERS rated design be shown to have a score less than or equal to the values in Table RC102.2 when compared to the HERS reference design determined in accordance with RESNET/ICC 301 for both of the following:1. HERS value not including on-site power production (OPP) calculated in accordance with RESNET/ICC 301.2. HERS value including on-site power production calculated in accordance with RESNET/ ICC 301 with the OPP in Equation 4.1.2 of RESNET/ICC 301. TABLE RC102.2 MAXIMUM HERS RATING INDEXa
FUEL USAGE | HERS RATING INDEX NOT INCLUDING OPP | HERS RATING INDEX INCLUDING OPP |
All Electric | 45 | 0 |
Mixed-Fuel | 42 | 0 |
a The building shall meet the requirements of Table R406.2, and the building thermal envelope shall be greater than or equal to the levels of efficiency and SHGC in Table R402.1.2 or R402.1.3.
Adopted by Mass Register Issue 1485, eff. 12/23/2022.