A German company has developed a Stirling engine retrofit for the KWB pellet boilers. The SPM Stirling engine then terns the KWB pellet boiler into a small scale CHP, providing heat and electricity to the user. This electricity will either be used within the property or sold back to the grid as valuable green electricity.
The example given is a 15KW KWB pellet boiler fitted with a 1KW SPM Stirling motor. SPM state that the unit is affordable with a reasonable payback time.
Units such as these will be a real benefit to local energy production and increasing the efficiency of burning biomass pellets while providing income for the owner by selling their excess energy back to the grid.
To find out more about SPM visit: www.stirlingpowermodule.at
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