There are fears among wind developers that Northern Ireland Electricity (NIE) is setting its green power premium too high. Electricity customers in the province are to be offered the opportunity to buy renewable generated electricity from April. But NIE has proposed a premium charge on top of the existing unit price of around £0.015/kWh. Northern Ireland renewable generators would prefer to see it set at just £0.005/kWh, which would equate to a 3-8% premium on electricity bills, says Mike Harper from B9 energy. He also points out that NIE has still to negotiate contract terms with the renewable generators. Nonetheless, the utility is preparing to send out a leaflet with electricity bills offering all customers the option to take all or part of their electricity needs from green sources.