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Wärtsilä: IEA finds combustion engines competitive in enabling wind and solar energy


Published May 15, 2014
Wärtsilä-9

Internal combustion engines (ICEs) are a promising technology for supporting wind and solar energy, a new report by the International Energy Agency (IEA) finds. Comparing different sources of flexibility for power systems, IEA says gas-fired ICE power plants are "very mature technology" and "cost-competitive to OCGTs" (Open Cycle Gas Turbines). Commenting on the alternative technologies, IEA notes that "growth in ICE plants actually exceeds that of turbine-based technologies". The findings were published in IEA's Energy Technology Perspectives 2014.

According to IEA, the key asset of engine-based generation is fast starting and ramping capability. Quick reaction time is key to follow the output of wind and solar as closely as possible.

International Energy Agency also mentions high efficiency at part-load. The part-loading efficiency penalty at 30 per cent load is zero for combustion engines and about 32 per cent for turbine-based plants. Furthermore, one of the advantages is fuel compatibility. Combustion engines provide additional fuel security, because they can operate on any liquid or gaseous fuel, including biofuels.

Tags: Wärtsilä Corporation




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