Entergy Louisiana, Inc. v. Louisiana Public Service Commission

Summary

The Louisiana Supreme Court reviewed an Entergy Louisiana challenge to a Louisiana Public Service Commission order disallowing certain reserve-equalization payments associated with generating units in extended reserve shutdown. The court held that federal law and the filed-rate doctrine did not preempt the Commission from assessing the prudence of Entergy Louisiana’s decision to continue treating those units as available for retail ratemaking purposes. The court affirmed the Commission’s order and concluded that it was not arbitrary, capricious, or clearly erroneous.

Holdings

1. The LPSC was not precluded by federal law or the filed-rate doctrine from assessing the prudence of Entergy Louisiana's decision to continue including ERS units in its MSS-1 payment calculations after the effective date of the FERC-approved amendment.
2. The LPSC's determination that Entergy Louisiana acted imprudently by continuing to include the ERS units without adequately evaluating the costs and benefits of returning them to service was supported by the record and was not arbitrary, capricious, or clearly erroneous.

Questions Presented

1. Whether federal law and the filed-rate doctrine preempted the LPSC from assessing the prudence of Entergy Louisiana's decision to continue including ERS units in MSS-1 calculations after August 5, 1997.
2. Whether the LPSC's determination that Entergy Louisiana acted imprudently was arbitrary, capricious, clearly erroneous, or unsupported by the record.

Disposition

affirmed