(2) Every electric company shall maintain separate accounting records for each component of electricity service provided by the electric company to retail electricity consumers. Accounts shall be maintained according to regulations issued by the Federal Energy Regulatory Commission.
(3) Unless required to provide a different accounting under federal requirements, each electric company shall, to a reasonable level of detail, separately identify and account for its costs of:
(a) Generation;
(b) Transmission services;
(c) Distribution services;
(d) Ancillary services;
(e) Consumer service charges levied on retail electricity consumers, including but not limited to metering and billing;
(f) Investment in public purposes; and
(g) State and local taxes paid by retail electricity consumers.
(4) An electric company shall separately identify and account for the costs of any additional components as the Public Utility Commission may require. [1999 c.865 §5; 2001 c.819 §4]