In the US, renewable generation is certified and tracked using RECs (Renewable Energy Certificates). One REC is issued for every MWh of eligible renewable energy that is delivered to the electric grid. A REC contains unique identifying details of the energy generated, including the renewable fuel type, project name and location, the vintage of the project and the generation, and serial number.
Within ISO-NE, the New England Power Pool Generation Information System (NEPOOL GIS) is used to track generation ownership and attributes, including RECs.
How are RECs (Renewable Energy Certificates) procured? Market transactions or long-term contracts.
Are renewable Power Purchase Agreements (PPAs) available? Yes
Are Green Tariffs available? No