If you’re concerned about high energy costs in the wake of inflation, the consequences of the war in Ukraine and the coming of the colder months, you might be tempted to give a third-party energy supplier a try. Before you do, make sure you understand what you’re getting into. One Livingston resident learned that the hard way. In late September, Richard Brown was visiting with a neighbor in his condo community. “I remarked her electricity bill must be very high because she had lights on all over the apartment, and she said, ‘Yeah, I’ve been a little concerned about the rising bill,’” Brown sai…