The Fuel Adjustment Mechanism is a program regulated by the Nova Scotia Utility and Review Board. It ensures your bill accurately reflects the true costs of producing electricity. Every year, NS Power forecasts the fuel costs of producing electricity. It’s an estimate and like any estimate, it may turn out to be too high or too low. When we tally up the actual fuel costs of producing power for the year, we use these numbers to calculate a new energy rate. Your rate may go down or it may go up.