(a) The transmission organization shall hold and administer a commission-approved nondiscriminatory open access transmission tariff for the backbone transmission system.
(b) The transmission organization shall file with the commission a nondiscriminatory open access transmission tariff consistent with Federal Energy Regulatory Commission standards to remove impediments to competition in the wholesale bulk power marketplace in the state. If the transmission organization does not file a nondiscriminatory open access transmission tariff with the commission on or before July 1, 2025, the commission shall, after notice and opportunity for public comment, establish a nondiscriminatory open access transmission tariff consistent with this section.
(c) The nondiscriminatory open access transmission tariff must, as approved by the commission, (1) pool backbone transmission system costs and allocate those costs through certificated load-serving entities on a coincident peak or load ratio share basis, or a combination of both; and
(2) account for (A) required backbone transmission system ancillary services;
(B) backbone transmission system congestion;
(C) disruptions to the backbone transmission system that result in the isolation of one geographical area of the backbone transmission system from another for more than 24 hours; and
(D) costs to own and operate the backbone transmission system, as established by the commission or by contract, including transmission costs associated with the Bradley Lake hydroelectric project.
(d) A Railbelt utility shall pass the commission-approved transmission costs directly and transparently to the utility's customers.