A report released Thursday said downed trees rather than transmission problems were largely to blame for massive power outages during Winter Storm Alfred last October. The report released by the Federal Energy Regulatory Commission and North American Electric Reliability Corp. said 74 transmission lines and 44 transmission substations experienced outages during Winter Storm Alfred, and that resulted in less than 5 percent of the outages during the peak of the storm. Most of the outages, according to the report, lasted no fewer than two days and lasted no longer than five days. The remainder of the outages, which was roughly...