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But not in the context of the grid. Most (all that I'm aware of) commercial grid-scale wind turbines have an output inverter. That allows the turbine to rotate at optimal speed for wind conditions, while still outputting the required 50hZ or 60Hz grid frequency. The output inverter has the same "inertia" as a solar inverter. From a grid stability and regulation perspective, they are the same.

Thermal and hydro plants use synchronous rotating generators that have physical inertia, and the generator rotational speed is exactly locked to the electrical frequency. (proportional to the number of poles in the generator).






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