Core Viewpoint - ISO New England opposes BP Energy Retail Co.'s request to recover nearly $6 million in excess payments due to faulty meter data from NSTAR Electric, asserting that the invoices are final and should not be adjusted [1][2]. Group 1: Billing Issues - The billing problems originated in 2024 when NSTAR implemented a new retail billing software system, leading to inaccuracies in load settlement data [3]. - ISO-NE billed BP for "phantom load" that BP never served, resulting in significant financial implications for the company [3][4]. - A total of 144,000 MWh of meter data errors were identified for the southeast Massachusetts zone, leading to a $5.9 million bill for a three-month period starting in July 2024 [4]. Group 2: Financial Impact - The renewable portfolio standard obligations related to the erroneous billing could add an additional $3.6 million, bringing the total financial impact on BP Energy to approximately $9.5 million [5]. - ISO-NE stated that the deadline for correcting these billing mistakes has passed, indicating that BP and NSTAR must resolve the issue independently [5]. Group 3: Market Settlement Framework - ISO-NE emphasized that the finality of its market settlement framework does not allow for the resettlement of past bills, which could disrupt other market participants [6][7]. - Resettling the bills would necessitate a comprehensive resettlement of energy, capacity, and ancillary services markets for all of ISO-NE's approximately 600 market participants for every five-minute interval during the affected months [7].