Improved Performance Starts Here

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.  Read More

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Invest In Efficiency

Global companies facing high energy costs can see immediate gains on sustainability goals by retrofitting their standby genset assets with the highest efficiency engine heater available.

Hotstart Energy Efficient Genset Heaters use an active heat recovery system to maintain genset engine temperatures at a lower energy draw than electric resistance heaters, saving up to 40,000 kWh annually.

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Invest In Redundancy

Energy efficiency efforts on standby generators can be easily accomplished while maintaining redundancy and reliability needed for quick starts during a power emergency.

Hotstart Energy Efficient Genset Heat Pumps use less power to maintain coolant temperatures, reducing engine heater energy draw by up to 75% on gensets 1MW and larger.

Latest News

Hotstart hires Santanu (Sean) Debnath as Chief Revenue Officer

August 7, 2025

Hotstart hires Santanu (Sean) Debnath as Chief Revenue Officer

Hotstart hires Santanu (Sean) Debnath for Chief Revenue Officer role to lead the development and execution of comprehensive revenue strategies that balance innovation and the company’s 80-year legacy of excellence.

read more: Hotstart hires Santanu (Sean) Debnath as Chief Revenue Officer

Whitepaper: Heating Emergency Power Systems with Heat Pumps

July 29, 2025

Whitepaper: Heating Emergency Power Systems with Heat Pumps

Levi Westra, Principal Energy Efficiency Engineer of Avista Utilities in Spokane, WA authored a new whitepaper detailing the energy efficiency achieved when integrating a heat pump to the existing engine heating infrastructure of a standby generator.

read more: Whitepaper: Heating Emergency Power Systems with Heat Pumps

Whitepaper: Data Center Energy Optimization Strategy for Standby Generation

July 11, 2025

Whitepaper: Data Center Energy Optimization Strategy for Standby Generation

Hotstart and INFRA Science & Engineering present a co-authored whitepaper discussing using alternative standby power generator heating systems, such as air-source heat pumps, as a PUE reduction strategy plus other benefits air-source heat pumps can provide.

read more: Whitepaper: Data Center Energy Optimization Strategy for Standby Generation