NAC704.8893. Renewable energy systems: Use of solar thermal systems.

     1. A solar thermal system which reduces the consumption of electricity, natural gas or propane and which is used as a solar water heating system qualifies as a renewable energy system only if the solar water heating system is certified by the SRCC. To calculate the number of equivalent kilowatt-hours attributable to the solar water heating system, the provider must use:

     (a) For a solar water heating system that is not rated by the SRCC, a thermal energy meter;

     (b) For a solar water heating system which has an SRCC rating of 34 million British thermal units or more, a thermal energy meter; or

     (c) For a solar water heating system which has an SRCC rating of less than 34 million British thermal units, a thermal energy meter or the annual performance estimates of the SRCC for the solar water heating system.

     2. A solar thermal system which reduces the consumption of electricity, natural gas or propane and which is used for a purpose other than as a solar water heating system qualifies as a renewable energy system only if the Commission determines that the provider can adequately measure or estimate the number of equivalent kilowatt-hours attributable to the solar thermal system.

     (Added to NAC by Pub. Utilities Comm’n by R144-01, eff. 5-31-2002; A by R210-03, 5-21-2004)