Entergy Texas, Inc.// Office of Public Utility Counsel and Public Utility Commission of Texas v. Public Utility Commission of Texas and Texas Industrial Energy Consumers// Office of Public Utility Counsel and Entergy Texas, Inc.
The Commission’s Order should be affirmed. The Commission reasonably interpreted its prior rate-case order, the Black-box Order, to authorize Entergy to book and amortize a regulatory asset for unrecovered Hurricane Rita reconstruction costs. The Black-box Order was ambiguous concerning the Rita Asset. That order was based on a “black box” settlement—one where only the amount of rates to be collected was set forth, not all of the individual components of a rate case. Because the Black-box Order did not explicitly state whether booking and amortizing the regulatory asset had been authorized, it was ambiguous. Courts defer to an agency’s interpretation of its prior, ambiguous order, and the evidence in the record supports the Commission’s decision. Substantial evidence supports the Commission’s decision that $13 million should be added to Entergy’s storm reserve based on the expenses Entergy incurred to repair equipment after a severe ice storm in 1997. A prior Commission decision that faulted Entergy for poor service quality did not amount to a finding that Entergy could not include the repair costs in the insurance reserve amount. Substantial evidence supports the Commission’s decision that Entergy failed to meet its burden to prove that predicted purchased-power capacity costs were known-and-measurable changes to the test-year data. The record supports the Commission’s decision that Entergy did not meet its burden of proving that requested changes were known and measurable. For example, Entergy based its arguments about purchasing capacity on the assumption that it would always purchase the maximum amount under new contracts. Entergy claimed that it would have more customers in the future. Not only is that speculative, but the utility failed to account for how additional customers would otherwise affect its recovery through rates. And Entergy’s arguments about transmission charges are controlled by numerous unknown variables used in a complex formula. The Commission’s test-year rule is created to avoid just such unknowns. Moreover, most of Entergy’s request for post-test-year changes to transmission costs were based on an agreement that was still waiting for approval from the Federal Energy Regulatory Commission. That is patently not a “known” change. Because substantial evidence supports the Commission’s decisions, the Order should be affirmed.