There was alarm among environmental activists when the Long Island Power Authority failed to take a widely anticipated vote in July on a wind farm that, had it gone forward, would have been the largest in the United States. Perplexingly, LIPA explained that the delay was at the request of state officials, who, LIPA said, wanted to align the proposal with forthcoming offshore wind and clean energy plans. To some observers, this sounded more than a little suspicious, even for an industry that has been plagued by regulatory stalling and controversy.