There's a program called Hilo [1] in Québec where it's using the Hydro-Québec Rate Flex D [2] to automatically stop the heating during peak demand.
> With Rate Flex D, you can save quite a bit of money, since most of the time in winter, you’ll be charged less than the base rate, except during occasional peak demand events, when you’ll be charged more than the base rate.
> With Rate Flex D, you can save quite a bit of money, since most of the time in winter, you’ll be charged less than the base rate, except during occasional peak demand events, when you’ll be charged more than the base rate.
[1] https://www.hiloenergie.com/en-ca/ [2] https://www.hydroquebec.com/residential/customer-space/rates...