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• Archive: Power plant flexibility is recognized as a vital tool to manage variability in electric loads and provide grid support services.
• One measure of this flexibility is ramp rate – the rate at which a power plant can increase or decrease output.
• Wärtsilä engines can ramp at over 250 MW/minute, much faster than gas turbines, providing ultra-responsive power that is needed to integrate renewable energy.Flexible generating units help provide stability to the electric grid by ramping output up or down as demand and system loads fluctuate.
• Because solar and wind generation can change within minutes, electric grid operators rely on power plants that can provide additional load (or curtail load) on the same timescale as variations in renewable output.
• The increase or reduction in output per minute is called the ramp rate and is usually expressed as megawatts per minute (MW/min).Ramp rates of most industrial frame gas turbine models are advertised as 10 MW/min up to 100 MW/min, with an average of about 25 MW/min.