PGE/REWE 2015

Operating Experience with GE’s 9.5 MW J920 FleXtra Gas Engines (Room G102-G103, Auditorium Centre, First Floor)

GE’s gas engines can operate on a broad range of gaseous fuels such as natural gas, biogas, landfill gas, etc. with its ability to provide diverse power outputs from 100 kW to 9,500 kW. The last addition to GE gas engine portfolio is the 9.5 MW J920 FleXtra with high electrical and high combined heat and power (CHP) efficiency operating in the field since beginning of 2013. The first engine that was installed in the field is located at the municipal plant Stadtwerke Rosenheim. It is a very typical CHP installation for a municipality where the combination of power and heat are the critical outputs for the customer. Operating flexibility is something that becomes more and more important as the segment is changing. Therefore modern gas engine based CHP power plants are designed for more than just delivering high efficiencies. GE’s second J920 FleXtra installation is located at a municipal plant of E.ON in northern Germany, close to Hamburg. It is also a CHP application, but customized for a high total efficiency. Both projects will be discussed in the paper including an overview of field experience with test bench data and an outlook for future improvements.