Accelerate the World's Transition to Sustainable Energy - to fight Anthropogenic Climate Change, page-35115

• Take too many coal and gas plants offline and the grid loses the built-in inertia provided by spinning turbines, generators and motors. They provide inertia as they rotate at the same frequency as the electricity grid. Thus, the presence of gas turbines and steam turbines acts as a buffer against power spikes and changes in frequency.

• Wind turbines don’t replace this inertia as frequency converters are placed between the wind turbine and the electricity grid that prevent the kinetic energy of their rotating mass from providing inertia.

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