Combined heat and power generationDecentralised energy generation using micro gas turbines

The micro gas turbine is the smaller sister of the gas turbine and functions in a similar way: the inlet air is compressed and pre-heated using hot exhaust gases. This air and the fuel gases, which are also compressed, are then combusted together. The released exhaust gases drive the turbine and generator (single shaft). The waste heat from the exhaust gases can be used for industrial production, heating and cooling. The electrical output is between 30 and 200 kW. They are typically used in hospitals, swimming pools and breweries. Micro gas turbines are able to react very quickly to fluctuating electricity demands. Research is being conducted to further increase the existing electrical efficiency of almost 30 per cent.