When the price of something rises, it's a signal to producers to make more of it and to consumers to use it more frugally.
Fixing the price of energy (or anything else) jams this mechanism.
That's why it's preferable to subsidise the poor directly than to set prices for everyone.
🐦🔗: https://nitter.eu/DanielJHannan/status/1560618475025883136