"Off-system sales" means the short-term sale of energy or the capacity to produce energy, or both, where there is no commitment of the continuous availability of the energy. The term includes the short-term sale of energy provided pursuant to a tariff offering energy imbalance service.
Nev. Admin. Code § 704.058
NRS 703.025, 704.110, 704.185, 704.187, 704.210