Green Mountain Energy RECs meet the environmental and consumer-protection standards set forth by the nonprofit Center for Resource Solutions. Learn more at



1 Eligible resource types include wind, solar, geothermal, and some forms of hydropower and biomass.
2 May also include other types of avoided emissions and other environmental benefits.
3 There can be no double counting or double claiming of the renewable energy and its benefits with one small exception: in the case of a 100% renewable energy product, a small percent of the renewable energy may also be used for compliance with a renewable portfolio standard or other mandate.
4 Eligible facilities must have begun operation or been repowered within the past 15 years and must be located in the U.S., Puerto Rico, Canada, or portions of Mexico. The RECs used in the renewable energy product must have been generated within a 21-month window surrounding the year in which the electricity was used.
5 We use a Green-e approved auditor to annually verify that our products meet Green-e requirements. Green-e then uses the auditor’s finding as the basis for certifying our eligible products.
6 For our Green-e certified competitive electricity customers, we provide RECs that come from the same electric grid in which our customers are located. That means if you’re a Texas customer, the RECs come from the part of Texas served by the Texas electric grid (ERCOT). If you’re a Pennsylvania customer, the RECs come from the multi-state PJM grid that serves the Mid-Atlantic and surrounding area. Otherwise, we tend to use nationally sourced RECs.