Hotstart Energy Efficient Genset Heating solutions added to standby generators 1MW and larger reduces the engine heater energy draw by up to 75% through proven air-source heat pump technology. Standby generators in data centers, hospitals, universities, and other critical facilities are equipped with engine heaters maintaining waterjacket coolant temperatures while the genset is idle. These heaters, which run 24/7 consuming up to 60MWh of energy annually, are an untapped source for energy savings