## 3.3 Energy Design Rating PV System Credit

The PV credit reflected in the Energy Design Rating for both single- and multi-family buildings uses calculations found in PVWatts technical documentation (see Appendix D). The PV system size and module type are required inputs. Users may select simplified or detailed inputs. With detailed inputs, the inverter efficiency must be included. The user can select either detailed installation information for the orientation and angle/tilt of the array or select California flexible installation.

Installation and verification must meet the requirements of Residential Appendix RA4.6.1.