I think dynamic prices in itself are a good thing for the reasons you mentioned. On the other hand: if the end-user prices rely solely on market-pricing, than

I think dynamic prices in itself are a good thing for the reasons you mentioned. On the other hand: if the end-user prices rely solely on market-pricing, than utility-companies don't have any incentives to provide a stable energy generation (e.g. via utility-scale storage, or peaker plants). I think a good solution would be involve some dynamic pricing together with a capped upper and lower bounds.