Power house

This month in our ‘Back to Basics’ series, Cathryn Hickey, Executive Director for the National Skills Academy for Environmental Technologies, introduces the fundamentals of heat-led micro-CHP systems.
A heat-led micro-combined heat and power (micro-CHP) system generates heat primarily for domestic hot water and space heating. The system also generates some electricity when responding to a demand for heat.
Micro-CHP units are typically up to 95% efficient with energy flows of approximately 80% heat output and 15% electrical output.
Although micro-CHP units have existed for some time, units suitable for domestic installations have only recently become available – these are gas-fired only. Other fuels options may be available for non-domestic units.
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