"In states with deregulated markets, prices could spike as much as 41 percent this summer when consumption is at its peak, Armstrong said.

In regulated markets like Connecticut, consumers are more insulated from increases, but still may face higher rates, he said."

Connecticut is a deregulated, not regulated, state for electricity and has been since 1998.

Consumers should ask their electric or gas utility for a "Home Energy Solutions" audit which includes discounts on Energy Star appliances.