DSIREUSA.org is a very useful website for information on state renewable incentive programs.  As of October 2009, there are 16 states that have created an additional incentive for solar.  SRECTrade is currently available in six states plus DC:  NJ, PA, MD, DE, OH, NC.  These states have a specific need for a public SREC market.  Every state implements these programs differently and therefore, our service may not suit your state’s renewable program.  Here is a map of all the states that have a renewable portfolio standard with solar or distributed generation provisions: