Northlanders will get a pleasant surprise when they receive their next power bill which will include a Top Energy lines charge discount credited to their account. Chief executive Russell Shaw says the credit will be welcome just before Christmas and is based on the amount of power used during the year. Customers will receive the credit on their next power bill after November 1. The amount paid is based on the level of energy consumed with 90 per cent of consumers receiving a $200 rebate. Commercial accounts will receive a higher amount and low usage accounts will receive less.