Microgrids normally provide continuous, prime power generated onsite, to support part or all of a facility or campus. Microgrids can operate grid-connected or grid independent (islanding). Energy cost savings and more reliable power are the benefits. The natural gas utility service is almost always more reliable than the electric utility. Power can be generated from fuel cells, turbines or micro-turbines from natural gas, with increased savings gained from using the waste heat, in combined heat and power (CHP) systems. Solar power, increasingly along with battery storage can be a stand-alone microgrid or can be integrated with fuel cells and other technologies. Government, tax and utility incentives often make microgrids financially viable, improving ROI.