A Bavarian municipal utility has upgraded and expanded its cogeneration plant, using GE technology as the centrepiece of the process.
Stadtwerke Rosenheim has installed a 9.5 MW GE Jenbacher J920 FleXtra gas engine enabling the plant to now supply 36.1 MW of electrical power and 43.8 MW of heat for the town near Munich in southern Germany.
The Rosenheim cogeneration facility already features four previously installed Jenbacher engines – three 3.35 MW J620 units and one 4.4 MW two-stage turbocharged J624 unit – as well as a waste incineration plant.
GE says its J920 FleXtra offers an overall efficiency of about 90 per cent when operating in cogeneration mode. Over a year, this results in over 130 million kWh in primarily energy savings and the reduction of over 7800 metric tons of CO2. The engine’s short start up time will also help give the Rosenheim facility operation flexibility to deal with the challenges of intermittent renewable energy supplies.
“Our flexible J920 technology offers both high efficiency and reliability levels, which makes it the ideal large gas engine distributed power solution for industrial and grid stabilization applications while also minimizing the customer’s carbon footprint,” said Karl Wetzlmayer, general manager of gas engines for power generation at GE Power & Water.
As part of the Energiewende concept, the Germany government has set out the goal to increase CHP power generation to 25 per cent of the country’s total power supply by 2020.
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