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2018 Washington State Energy Code—Residential <br /> Prescriptive Energy Code Compliance for All Climate Zones in Washington <br /> Single Family—New&Additions(effective February 1, 2021) <br /> Table 406.3—Energy Credits(Single Family) <br /> Option Description Credits:SF <br /> 6.RENEWABLE ELECTRIC ENERGY OPTION <br /> For each 1200 kWh of electrical generation per housing unit provided annually by on-site wind <br /> or solar equipment a 1.0 credit shall be allowed,up to 3 credits.Generation shall be calculated <br /> as follows: <br /> For solar electric systems,the design shall be demonstrated to meet this requirement using <br /> the National Renewable Energy Laboratory calculator PVWATTs or approved alternate by the <br /> code official. <br /> 6.1 Documentation noting solar access shall be included on the plans. For wind generation 1.0 <br /> projects designs shall document annual power generation based on the following factors:the <br /> wind turbine power curve;average annual wind speed at the site;frequency distribution of the <br /> wind speed at the site and height of the tower. <br /> To qualify to claim this credit,the building permit drawings shall specify the option being <br /> selected and shall show the photovoltaic or wind turbine equipment type,provide <br /> documentation of solar and wind access,and include a calculation of the minimum annual <br /> energy power production. <br /> 7.APPLIANCE PACKAGE OPTION <br /> All of the following appliances shall be new and installed in the dwelling unit and shall meet <br /> the following standards: <br /> Dishwasher—Energy Star rated <br /> Refrigerator(if provided)—Energy Star rated <br /> Washing machine—Energy Star rated <br /> 7.1 Dryer—Energy Star rated,ventless dryer with minimum CEF rating of 5.2. 0.5 <br /> To qualify to claim this credit,the building permit drawings shall specify the option being <br /> selected and shall show the appliance type and provide documentation of Energy Star <br /> compliance.At the time of inspection,all appliances shall be installed and connected to <br /> utilities. Dryer ducts and exterior dryer vent caps are not permitted to be installed in the <br /> dwelling unit. <br /> Rev.10-27-22 Prescriptive Path—Single Family 2018 Washington State Energy Code-R 9 ( <br />