Where does this come from, and can I check it?

Heavy generator rotors resist sudden frequency changes, and solar farms supply no such inertia without extra controls. The figure is taken from National Energy System Operator, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Yes. It sits on the Technology shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Grid stability depends on spinning metal

Heavy generator rotors resist sudden frequency changes, and solar farms supply no such inertia without extra controls A synchronous generator's rotor turns in step with grid frequency, and its stored kinetic energy opposes any sudden gap between supply and demand. When a large plant trips, frequency sags over seconds rather than collapsing at once, giving control systems time to respond. Inverter connected solar and wind have no rotating mass, so operators buy synthetic inertia or synchronous condensers instead. It sits in Mondo's technology collection, one of 200 facts that each trace back to the reference below.

Where this comes from

National Energy System Operator

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Tags: grid, frequency, inertia

Grid stability depends on spinning metal: the short answers

Where does this come from, and can I check it?: Heavy generator rotors resist sudden frequency changes, and solar farms supply no such inertia without extra controls. The figure is taken from National Energy System Operator, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a technology fact?: Yes. It sits on the Technology shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.