In addition, the site lists marketers of Renewable Energy Certificates (RECs)(also known as green tags or tradable renewable certificates),
which represent the environmental attributes of the power produced from
a renewable energy project. Whether or not consumers have access to
green power through their local utility or a competitive electricity
marketer, consumers can purchase RECs without having to switch
electricity suppliers.
Wind Powering America
The U.S. Department of Energy's Wind Powering America site provides state-by-state wind project information,
including validated wind maps, anemometer loan programs, small wind
guides, legislative briefings, wind working groups, and state-specific
news.