How does the technology work?

This is often known as co-generation or tri-generation The basic method of generating energy is as follows:

• An internal combustion engine is fuelled by gas, petrol or diesel: biogas, ethanol or biodiesel are more often employed.
• An electric generator is mechanically coupled to the engine to provide electricity for local use and or export to a grid.
• Heat from the exhaust is transferred via heat exchangers to a thermal store to be used for heating.
• Heat from the engine cooling jacket is often transferred for use in an evaporative cooler that could be used for air conditioning or chillers.
• The entire process is usually controlled via an electronic control system.

Where can a combined heat and power system be installed?

A CHP system would usually be installed within a dedicated plant room.