3 ms·

You need a storage anyway because moment your grid runs out of power, even for a minute, it will cause cascade collapse of the grid and then grid operator will

• toomuchtodo 4y ago
  To expand on your comment: When you have distributed storage, you can rapidly isolate parts of the grid where you might have a voltage and/or frequency deviation outside of normal operating ranges, and then bring those segments back up with the equivalent of reclosers and sectionalizers. There is no longer the concept of a cascading grid wide failure. Storage is commonly thought of as energy arbitrage, but more importantly it provides clean and less expensive “grid services” such as synthetic inertia. Unlike a thermal generator that would need to add fuel and come up to speed to increase frequency, batteries can respond in milliseconds (Tesla’s Megapack product has proven this in the field in Australia, specially the Hornsdale Power Reserve in South Australia) to hold up voltage and frequency to prevent brownouts or an outage. For example, Oahu, an island of Hawaii, is about to (the battery facility is wrapping up install and preparing for validation) replace its last coal plant with Tesla Megapacks that will provide grid services the coal plant is providing.