M&D Company, a Tokyo-based wind farm developer, has scrapped plans to build wind farms in Aomori Prefecture with a cumulative capacity of 50 MW. M&D had won contracts to supply power to Tohoku Electric Power Company, but decided against proceeding due to technological and economic complexities caused by the utility's insistence that wind plant be equipped with storage batteries to even out variability of power supply. The company still plans to eventually develop the three sites at the northern tip of Japan's main Honshu island: a 10 MW wind farm in Yokohama-cho, a 20 MW plant near Goshogawara City and a 19.3 MW wind farm in Nakadomari-cho. A requirement for dedicated power storage for wind farms has become a common feature of calls for wind power capacity in Japan. M&D operates six wind farms in the country using turbines from Vestas, Nordex and GE.