Systems and methods are disclosed to method to determine capacity planning under environmental constraints by generating an integrated economic planning model for a decision maker, a utility company and one or more microgrids; maximizing the microgrids' total profit and minimizing the electricity price designed by the utility company; generating proactive strategies for the utility company to comply with the environmental policies, and planning strategies for microgrids to help utility company abate environmental mission; and applying different characteristics of microgrids to invest in different portfolio of renewable energy through gaming simulations.