Nevada Power Co. v. Public Utilities Commission, 122 Nev. 821

Summary

The Nevada Supreme Court reviewed challenges to the Public Utilities Commission of Nevada's decision regarding Nevada Power Company's application to recover approximately $922 million in deferred energy costs. The court held that a rebuttable presumption of prudence applies in deferred energy accounting proceedings and concluded that most of the Commission's allowances and disallowances were supported by substantial evidence. It reversed the disallowance associated with Nevada Power's failure to enter into a Merrill Lynch-type transaction and remanded for implementation of a new rate schedule.

Holdings

1. A utility seeking recovery of deferred energy costs enjoys a rebuttable presumption that the expenses were prudently incurred and taken in good faith. An intervenor may rebut the presumption by presenting evidence creating a serious doubt about the prudence of the expenditure, after which the burden of production shifts to the utility to dispel the doubt.
2. NRS 704.110(10) requires the PUCN to analyze each power-purchasing practice or transaction separately to determine whether the associated costs were prudently incurred.
3. The PUCN's allowance of nearly $485 million in deferred energy costs was supported by substantial evidence and complied with NRS 704.110(10).
4. The PUCN could not disallow $180,082,532 based on Nevada Power's failure to enter a Merrill Lynch-type transaction because the intervenors failed to present evidence sufficient to rebut the prudence presumption.
5. The PUCN's disallowances for the February, April, and September 2001 purchases and the 2001 off-peak transaction were affirmed because Nevada Power's excluded rebuttal evidence did not specifically rebut the evidence of imprudence or demonstrate prejudice to its substantial rights.

Questions Presented

1. Whether a utility seeking recovery through deferred energy accounting is entitled to a rebuttable presumption that its costs were prudently incurred.
2. Whether NRS 704.110(10) requires the PUCN to evaluate each power-purchasing practice or transaction separately rather than treating alleged management mistakes as grounds to deny the entire application.
3. Whether substantial evidence supported the PUCN's allowance of nearly $485 million in deferred energy costs.
4. Whether the evidence rebutted the prudence presumption concerning Nevada Power's failure to enter a Merrill Lynch-type transaction.
5. Whether the PUCN improperly excluded Nevada Power's rebuttal evidence concerning the 2001 purchases and whether that exclusion prejudiced Nevada Power's substantial rights.

Disposition

reversed_and_remanded