Enercon is raising its turbine prices, blaming higher component costs. The hikes will only apply to the E40 600 kW and the E66 1.8 MW machines, says Nicole Weinhold of the company. The E58 1 MW is not affected. Meantime series production of the new E30 300 kW has just begun after a complete overhaul, she adds. Two prototype 300 kW units were installed in Ost-Friesland in Lower Saxony at the end of last year. The new standard price for E40 and E66 machines will be published "shortly" in the federal wind energy association's Market Overview for wind turbines. Enercon stresses that its requirements for best quality of steel, components and raw materials has a price, as does its commitment to long turbine lifetime. For this reason the company is extending the period of its "Enercon partnership concept" (Windpower Monthly, March 2001). Enercon turbine operators signing up to this deal get a full maintenance contract for their wind turbines in return for a fee per kWh generated by their plant.