IN the Matter of Evergy Metro, INC., d/b/a Evergy Missouri Metro's Request for Authority to Implement a General Rate Increase for Electric Service; Missouri Public Service Commission v. Office of Public Counsel

CourtMissouri Court of Appeals
DecidedAugust 22, 2023
DocketWD86023
StatusPublished

This text of IN the Matter of Evergy Metro, INC., d/b/a Evergy Missouri Metro's Request for Authority to Implement a General Rate Increase for Electric Service; Missouri Public Service Commission v. Office of Public Counsel (IN the Matter of Evergy Metro, INC., d/b/a Evergy Missouri Metro's Request for Authority to Implement a General Rate Increase for Electric Service; Missouri Public Service Commission v. Office of Public Counsel) is published on Counsel Stack Legal Research, covering Missouri Court of Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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IN the Matter of Evergy Metro, INC., d/b/a Evergy Missouri Metro's Request for Authority to Implement a General Rate Increase for Electric Service; Missouri Public Service Commission v. Office of Public Counsel, (Mo. Ct. App. 2023).

Opinion

In the Missouri Court of Appeals Western District IN THE MATTER OF EVERGY METRO, ) INC., D/B/A EVERGY MISSOURI ) METRO'S REQUEST FOR AUTHORITY ) TO IMPLEMENT A GENERAL RATE ) INCREASE FOR ELECTRIC SERVICE, ) ) Respondent; ) WD86023 MISSOURI PUBLIC SERVICE ) OPINION FILED: ) AUGUST 22, 2023 COMMISSION, ) ) Respondent, ) ) v. ) ) OFFICE OF PUBLIC COUNSEL, ) ) Appellant. )

Appeal from Public Service Commission

Before Division One: Gary D. Witt, Chief Judge, Presiding, Mark D. Pfeiffer, Judge, Anthony Rex Gabbert, Judge

The Missouri Office of the Public Counsel (“OPC”) appeals the December 8,

2022, Amended Report and Order (“Amended Order”) issued by the Missouri Public

Service Commission (“Commission”) in a rate case filed by Evergy Missouri West, Inc.

(“Evergy”). OPC asserts three points of error on appeal. OPC contends the Commission

erred in ordering an eight-year amortization period for the remaining net book value

(“NBV”) of the Sibley Generating Station (“Sibley”) stating, 1) the Commission’s

decision is arbitrary, capricious, and/or unreasonable, and arguing that the eight-year amortization is not supported by substantial and competent evidence on the whole record,

is contrary to the overwhelming weight of the evidence in the record, and is based on the

Commission’s “gut feeling” and “mere surmise,” 2) the Commission’s decision is

arbitrary, capricious, and/or unreasonable because the eight-year amortization was made

with the specific intention to allow Evergy to circumvent the statutory rate limitations

designed to protect consumers, which thereby nullifies those protections in clear

contravention of legislative intent, and 3) the Commission’s decision is unlawful and

unreasonable in violation of the OPC’s right to due process of law in that the

Commission allowed Evergy to advance a new position for the first time after the close of

the evidentiary hearing and then ruled on that request without giving the OPC an

opportunity to present any factual evidence or legal argument. We affirm.

Factual and Procedural Background1

The Commission is the state agency responsible for the regulation of public

utilities in Missouri. Evergy is an electric corporation and public utility that generally

serves customers in the western and northwestern counties of Missouri. The OPC

represents ratepayers in proceedings before the Commission and on appeal of the

Commission’s orders.

On January 7, 2022, Evergy filed tariff sheets designed to increase its electric base

rates by approximately 27.7 million (or 3.85%). To allow sufficient time to study the

1 We rely heavily herein on the Commission’s Findings of Fact in explaining the Factual and Procedural Background.

2 effect of the tariff sheets and to determine if the rates established by those sheets were

just, reasonable, and in the public interest, the tariff sheets were suspended until

December 6, 2022. Numerous issues were raised in the general rate case that followed.

An eight-day evidentiary hearing was held from August 31 to September 9, 2022. Ten

parties intervened. On various dates before and during the evidentiary hearing, the

parties submitted four stipulations and agreements, which were approved by the

Commission. Only one of the issues ultimately decided by the Commission is addressed

in this appeal. It involves the amortization treatment of the unrecovered investment in

Sibley.

Sibley was a coal-fired power-generating plant consisting of three units built

during the 1960s. Sibley underwent significant retrofits following its initial construction

that extended the depreciable life of Sibley to 2040. The first occurred in 1991 when the

plant was converted to burn low-sulfur coal. The second was the installation of scrubbers

to Unit three in 2009. During the time period of January 2015 through November 2016,

Sibley Unit 3 supplied 35% of Evergy’s energy needs.

The estimated useful life of Sibley is included in rates in part through depreciation

calculations. Depreciation, as applied to depreciable electric plant, means the loss in

service value not restored by current maintenance, incurred in connection with the

consumption or prospective retirement of electric plant in the course of service from

causes which are known to be in current operation and against which the utility is not

protected by insurance.

3 The depreciation study filed in February 2016 in Evergy’s rate case was based on

the assets in service as of December 31, 2014. The 2014 Depreciation Study included a

projected end of depreciable life date of December 31, 2019, for Sibley Units 1 and 2,

and December 31, 2040, for Unit 3 and the Sibley common plant. Evergy’s 2012

Integrated Resource Plan (“IRP”) showed the retirement of Sibley Units 1 and 2

occurring in 2017 as part of Evergy’s Preferred Plan. Evergy’s 2017 IRP Annual Update

showed that the retirement of Sibley Units 2 and 3 by 2019 reflected the lowest cost plan

from a net present value of revenue requirement (“NPVRR”) perspective. Those

retirements on that timeline would result in a savings of $282 million over the 2016 IRP.

Evergy’s modeling for the 2017 IRP Annual Update showed that retiring Sibley Unit 3

reduced costs for Evergy customers across all 18 modeled scenarios—regardless of load,

gas price, or carbon-dioxide price assumption. Evergy determined through the IRP

process that the retirement of Sibley would reduce the long-term NPVRR and therefore

reduce costs to customers going forward as opposed to continuing to operate the plant.

In January 2018, Evergy filed a general rate case which included Sibley in rate

base as the plant was in operation and expected to be in operation at the true-up date of

that rate case, June 30, 2018. Evergy’s 2018 IRP, filed in April of that year, states that

Sibley Units 2 and 3 would retire at the end of 2018. On September 5, 2018, Unit 3

tripped and went off-line due to a turbine vibration event. Evergy made a required non-

case related filing in the Commission’s Electronic Filing and Information System on

September 6, 2018, and a follow-up non-case related filing on September 12, 2018,

4 indicating that a preliminary analysis showed the likely impact of the turbine vibration

was a repair costing over $200,000. A subsequent root case analysis of the Sibley Unit 3

turbine vibration event determined that the time and expense to repair the unit was

estimated at $2.21 million. Evergy estimated that $54 million in capital costs would have

been required to keep Sibley operational in the short term, and operation and maintenance

costs to keep Sibley operational would have been $28 million per year. The costs to keep

Sibley in operation exceeded the benefits. On November 13, 2018, Evergy retired Sibley.

Sibley provided service for fifty to sixty years, representing the major portion of

the expected life of the assets. At the time of retirement, the majority of remaining NBV

was related to the 1991 and 2009 environmental retrofits. NBV is the initial plant in

service amount less accumulated depreciation. Increasing the accumulated depreciation

reserve reduces NBV and return, while decreasing the accumulated depreciation reserve

would increase NBV and return. Generally, the accounting for removal from plant-in-

service upon retirement would be to credit the book value of the asset and debit the

accumulated reserve.

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IN the Matter of Evergy Metro, INC., d/b/a Evergy Missouri Metro's Request for Authority to Implement a General Rate Increase for Electric Service; Missouri Public Service Commission v. Office of Public Counsel, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-the-matter-of-evergy-metro-inc-dba-evergy-missouri-metros-request-moctapp-2023.