Its funny you posted that, I was just looking at changing suppliers the other day. I had received one of those, switch to us get $75 gift card offers in the mail and went to my eversource account to see what the rate looked like. It led me to here:
https://www.energizect.com/compare-energy-suppliers/
You actually need to spend some time on the website and play around with the different offers. You can actually get a lower rate, but the trick is in getting rid of the fees like enrollment fee and monthly fee. Can you save alot? Maybe.
I did this in Mass once, and I think this is the part where people get really tripped up, and I learned my lesson, is that when you do switch, at the end of the contract, when the contract is over, they boost the rate big time. Like I went from 8 cents to 20 cents, and my electric bill blew up. Called up, and switched back.
So I am planning on doing it again, switching the provider, difference being, I will mark on my calendar a month ahead to make sure to change again before that period at the low rate ends.
In the end, its finding websites like above, and just keeping up with it like you do with anything else. Maybe you lose out if eversource drops it rates, but, how often does that happen?
I gotta be the honest, the quotes from the AARP people are a bit of a joke. Get help at your local senior citizen center. And yes, while some of the rates are higher then what you are paying, its due to some of the supplier providing more renewable energy then the state requires. So if you really have a green thumb, you can pay for it!