cross-posted from: https://lemmings.world/post/46124852
EVs are a highly modifyable variable load, as the vast majority personal vehicles sit idle nearly the whole day. When a fraction of those can be directed to charge based on grid needs, it becomes a net-asset for stability.
In Ontario, just the half-assed time-of-use pricing and small numbers of EVs in the fleet are likely contributing to the more more stable load over night. They used to have so much Nuclear surplus they were selling to NYC overnight at negative pricing on a regular basis.