least cost option
(3) The term “least cost option” means an option for providing reliable electric services to electric customers which will, to the extent practicable, minimize life-cycle system costs, including adverse environmental effects, of providing such service. To the extent practicable, energy efficiency and renewable resources may be given priority in any least-cost option.
Source
42 USC § 7275(3)
Scoping language
None identified, default scope is assumed to be the parent (part C) of this section.