Oregon Administrative Rules
Chapter 860 - PUBLIC UTILITY COMMISSION
Division 84 - SOLAR PHOTOVOLTAIC PROGRAMS
Section 860-084-0040 - Measurement of Capacity under the Solar Photovoltaic Capacity Standard

(1) The capacity of solar photovoltaic systems used to satisfy the requirements of OAR 860-084-0020 must be measured on the alternating current side of the system's inverter.

(2) Each electric company must convert nameplate capacity ratings reported by manufacturers in terms of direct current watts under standard test conditions to an alternating current rating in watts to account for inverter and other system component losses and to account for the effect of normal operating temperature on solar module output. This conversion will be calculated as 85 percent of the manufacturer's nameplate rating.