Switching from the 'local' POCO to another generation source via the deregulation can save $$ per KWHr. As Tesla said, hopefully the broker can stay ahead of the curve on costs from whatever source they utilize.
Dereg of electric & gas came into NJ similar to a fabled nor'easter, with a flurry of advertising and offers. First to comm accounts and then down to resi. I have not heard of any 'disasters', nor have I heard of any really satisfied 'switchers'.
It sounds good in the ads, but what about reality?
Some of the 'happy' people I have contact with are very satisfied with PV systems that they installed, both comm and resi.