Purchasing RECs
In North America, renewable power can be purchased and managed in the form of RECs. Each REC embodies the environmental benefits of one megawatt-hour (MWh, equal to 1,000 kilowatt-hours) of renewable electricity that is generated by renewable facilities. Certain wind, solar, geothermal, low-impact hydro, and biomass facilities qualify as renewable energy. If you own RECs corresponding to the amount of power you use, you know that the same amount of power was generated at a renewable facility and delivered to the power grid.
Your environmental impact