What is Combined Heat and Power (CHP)?

Combined heat and power, also known as cogeneration, is a method of recovering energy in the form of useful heat that would otherwise be lost in the process of producing electricity. Traditional methods of electricity generation produce heat as a by-product, but CHP is able to capture and recycle this energy for other uses.

CHP is most effective when combined with local industrial needs. As with all forms of energy, transmission is expensive and inefficient. Therefore institutions that require significant sources of electricity and heat, such as hospitals, universities and large industrial plants, are well suited for CHP systems.

In New York City, Con Edison, the local utility company, distributes steam to heat nearby buildings. Locally, the University of Texas employs a CHP system that provides electricity, heat and cooling to 160 campus buildings.

To learn more about CHP, read this case study (PDF) done by the International District Energy Association on the University of Texas CHP system.