New England Power (NEP) and ISO-NE submit third revised Local Service Agreements (LSAs) with Block Island Utility District and Narragansett Electric Co. to revise a surcharge in the LSAs for the recovery of costs for the Block Island Transmission System from a carrying charge approach to a  formula that uses actual costs in the year the surcharge is calculated, with a true-up mechanism, expected to result in lower rates to Rhode Island (RI) customers