RECs are controlled on a state level and reported to the UE EPA for the % of renewable power in the specific grid in the US when doing an ISO 14064/65/66 audit of the facility the REC’s are applied to the facility power use age as a reduction if they meet the additionality test: 1) PPA with RECs, and 2) PPA and REC’s are in the same egrid or state. example Chicago electrical grid is 520g/kw CO2e and a wind farm in the egrid has a carbon footprint of 10g/kw CO2e if the facility has a PPA with RECs the monthly renewable power purchase from the wind farm is Monthly kwh Purchase X 10g/CO2e = Carbon footprint of the purchase additional grid power purchased is 520g/kw co2e X Grid Purchased electric
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