Stakeholders in the Massachusetts solar industry can be relieved to know that a preliminary deal has been reached in TransCanada’s lawsuit against the Massachusetts SREC program. The lawsuit asserted that the program was unconstitutional on the grounds that it violated interstate commerce laws. It argued that the exclusion of out-of-state solar facilities from SREC eligibility discriminated against out-of-state electricity providers. In the deal reached with the Department of Energy, electricity supply contracts signed prior to the January 1, 2010 start of the SREC program will be grandfathered in and protected from the requirements. In return, TransCanada has agreed to drop claims against the state’s solar program.