|
|
|
These systems are usually fuelled on gas, although some can burn a range of other fuels, and produce electrical power and thermal energy from the single fuel source. The two major types of engines used in microCHP systems are: 
Reciprocating engines The electrical output of this type of micro-combined heat and power (microCHP) units typically start at about 5 kW offering around 10-12kW of thermal output. Significant development work has been underway and currently continues, particularly in the USA, but here in the UK Baxi Technologies UK are leading the market. |
Stirling engines These are external combustion engines with a sealed system using an inert working fluid, usually helium or hydrogen. They range in size from ½ kW upwards and are now available on the market with the leading brands being Microgen and Whisper Tech who are currently penetrating the home heating markets. |
|
Performance details Micro-CHP systems in the UK are currently being developed and some are undergoing field trials within households. A typical domestic sized micro-CHP unit will deliver the same comfort levels as a modern boiler, whilst reducing the emissions of a typical house by 25% or 1.5 tonne of CO2 per year. You can find more details on microCHP at the following links: |