Under Sun Acres Inc.


Under Sun Acres operates four combined heat and power reciprocating gas engines. The engines supply the Ontario electricity grid with 13 MW of electricity. Waste heat recovered from the engine exhaust and jacket is utilized to heat the greenhouse. With realized efficiencies of greater than 90% these engines serve a two-fold purpose.

For information on our new cogeneration project with Airport Power Inc. please follow this link.
For information on our new cogeneration project LT1 – Plant 2 please follow this link.

More general information on cogeneration can be found below.

Cogen is the cutting edge of energy generation and consumption for commercial and industrial applications. The engines will work in unison with our existing hot water boilers and buffer storage tank to provide efficient and reliable heat to the greenhouse throughout the year.

“Energy efficiency has become one of the cornerstones of global energy policies, essential in order to meet the growing energy demand while protecting natural resources and the quality of life. In this context, cogeneration plays a topical role, allowing up to 30% primary energy savings and ensuring measurable objective benefits in various application areas that we want to explore through this channel.” – cogenerationchannel.com

For an in-depth look at cogeneration take a look at this article from the team at U Gaat Bouwen – Standardization of Modular CHP Plants Facilitate Rapid Expansion of Greenhouse Sector