(1) After completing the final report, the Regulator is to make a determination that regulates the prices that may be charged by, and specifies the price control mechanisms imposed on, an electricity entity during the period specified in the determination in respect of the declared electrical service that was the subject of the report.(2) A declared electrical service price determination is to specify the day on which the determination expires.(3) A declared electrical service price determination (a) is to allow for an adjustment to the prices that may be charged by, and the price control mechanisms imposed on, an electricity entity under the determination as a result of a tax event and is to specify the method of calculating that adjustment or the principles and general manner to be applied in making the adjustment or doing the calculation of the adjustment; and(b) in the case of a declared electrical service that is or includes the sale and supply of electricity by Aurora Energy to tariff customers, is to allow for an adjustment to the prices that may be charged by, and the price control mechanisms imposed on, an electricity entity under the determination as a result of a vesting agreement adjustment event specified in the determination and is to specify the method of calculating that adjustment or the principles and general manner to be applied in making the adjustment or doing the calculation of the adjustment; and(c) in the case of a declared electrical service that is or includes the sale and supply of electricity by Aurora Energy to tariff customers (i) is to allow for an adjustment to the prices that may be charged by, and the price control mechanisms imposed on, an electricity entity under the determination as a result of a change in the costs to the electricity entity from the purchase of renewable energy certificates, within the meaning of the Renewable Energy (Electricity) Act 2000 of the Commonwealth, in connection with the provision of that service; and(ii) is to specify the method of calculating that adjustment or the principles and general manner to be applied in making the adjustment or doing the calculation of the adjustment; and(d) may establish a performance incentive scheme for an electricity entity and, if it does so, is to specify the method of calculating the adjustment to the prices that may be charged by, and the price control mechanisms imposed on, the electricity entity under the determination as a result of that scheme or the principles and general manner to be applied in making the adjustment or doing the calculation of the adjustment.(4) In specifying in a declared electrical service price determination the method of calculating an adjustment referred to in subregulation (3)(a) , (b) or (c) or the principles and general manner to be applied in making the adjustment or doing the calculation of the adjustment, the Regulator is to ensure that the adjustment reflects the full financial effect to the electricity entity of the tax event, specified vesting agreement adjustment event or change.(5) A declared electrical service price determination may have a differential application that varies according to factors stated in the determination.