Local governments can lead by example by generating energy on–site, purchasing green power, or purchasing renewable energy. Using a combination of renewable energy options can help meet local government goals especially in some regions where availability and quality of renewable resources vary. Generating renewable energy on-site using a system or device at the location where the power is used (e.g., PV panels on a state building, geothermal heat pumps, biomass-fueled combined heat and power). Purchasing green power through a green power procurement process that involves the generation of renewable energy certificates (RECs). Purchasing renewable energy from an electric utility through a green pricing or green marketing program, where buyers pay a small premium in exchange for electricity generated locally from green power resources.