I also recently switched to Constellation. Locked it in at 13.2/kWh for 36 months. I began looking at suppliers when they announced the rate hike for January/2023. I’ve done this before with other suppliers and haven’t had any issues. Some suppliers did have early cancellation fees in the past but I don’t see any fees/other fees listed for Constellation- Safe to say after this rate increase in January it’ll be a while before Eversource returns to lower rates. I’d lock it in NOW before their rates also go up. If you ever want to switch back you can call Eversource and ask to go to them as the supplier or shop the supplier list again. About 2 billing cycles before your end date for the new supplier contract, they’ll contact you to offer a renewal rate- and then you can change it back if it happens to be higher than Eversource. or continue with them. Hope this helps.