In the Matter of the Application of Union Electric Company D/B/A Ameren Missouri for Permission and Approval and a Certificate of Public Convenience and Necessity Authorizing it to Construct a Wind Generation Facility Office of the Public Counsel v. Missouri Public Service Commission

Missouri Court of Appeals·Decided October 22, 2019·No. WD82492·Published

Opinion

In the

Missouri Court of Appeals Western District

IN THE MATTER OF THE  APPLICATION OF UNION ELECTRIC  WD82492 COMPANY D/B/A AMEREN MISSOURI FOR PERMISSION AND APPROVAL  OPINION FILED:

AND A CERTIFICATE OF PUBLIC  CONVENIENCE AND NECESSITY  October 22, 2019 AUTHORIZING IT TO CONSTRUCT A  WIND GENERATION FACILITY;  OFFICE OF THE PUBLIC COUNSEL,  

Appellant,  

v.  

MISSOURI PUBLIC SERVICE  COMMISSION,  

Respondent. 

APPEAL FROM THE PUBLIC SERVICE COMMISSION

Before Division Three:

Gary D. Witt, P.J., Edward R. Ardini, and Thomas N. Chapman, JJ.

The Missouri Office of the Public Counsel (OPC) appeals the Report and Order of the Missouri Public Service Commission (PSC) allowing Union Electric Company1 (Ameren) to recapture fifteen percent of its interim depreciation expenses associated with the building of the

1 In Missouri, Union Electric Company does business as Ameren Missouri. We will refer to it as “Ameren” for this opinion.

High Prairie Wind Farm (Wind Farm) by an interim rate adjustment (a surcharge) before Ameren’s next rate case -- as may be provided by the Renewable Energy Standard Cost Recovery Mechanism (RESRAM). 2 OPC does not challenge approval of construction of the Wind Farm. OPC agrees that Ameren’s election to utilize the Plant in Service Accounting (PISA) procedure permitted by §393.1400.2(1)3 entitled (and, in fact, required) Ameren to defer a fixed eighty-five percent of the interim Wind Farm depreciation expenses and returns as a regulatory asset to be considered in calculating its rate base in Ameren’s next rate case. The OPC does not contest that Ameren is entitled to pass on to its customers up to 100% of its other prudently incurred costs and benefits of the Wind Farm that are not subject to PISA deferral through an interim rate adjustment as provided by RESRAM.

In its appeal, OPC only challenges the PSC’s decision to allow Ameren to recover by RESRAM’s interim rate adjustment the fifteen percent of interim depreciation expenses related to the Wind Farm that is not accounted for in the PISA procedure. OPC maintains that, once elected, § 393.1400’s PISA accounting procedure is the exclusive means for Ameren to recover the interim depreciation expenses and return associated with the Wind Farm construction. We affirm the PSC’s Report and Order.

2 “Interim” as used in this context refers to the period after the construction of the Wind Farm but prior to the next time Ameren appears before the Commission to have its rates established. As defined by Business Dictionary, depreciation expense is “The portion of a tangible capital asset that is deemed to have been consumed or expired, and has thus become an expense.” Available at http://www.businessdictionary.com/definition/depreciationexpense .html (last accessed August 30, 2019). 3 All statutory references are to RSMo 2018 as updated through the most current supplement.

Statement of Facts

Ameren is an electrical corporation as defined in § 386.010, subject to regulation by the PSC. Ameren applied for a Certificate of Convenience and Necessity to build the High Prairie Wind Farm in 2018. While the location, design and parameters of this facility were the subject of substantial comment and argument, the stakeholders ultimately entered into a stipulation and agreement (later approved in a formal order of the PSC) that left only the one issue (now on appeal) to be resolved by the PSC.4 In order to put this issue into its proper context, a brief survey of Missouri’s regulatory scheme for utilities is required.

Missouri’s Regulation of Utility Corporations Missouri established the PSC and requires a “just and reasonable” rate structure mandated under § 393.130.1, in recognition that utility providers, while often private companies, provide an essential public good and enjoy a quasi-monopoly on that good. Reasonable rates should balance utility investor and consumer interests, compensating the utility company for its operating and maintenance expenses, servicing its debt, and allowing a reasonable rate of return (profit) for its investors. State ex rel. Office of Public Counsel v. Public Service Commission, 367 S.W.3d 91, 108 (Mo. App. S.D. 2012); Fed Power Comm’n v. Hope Natural Gas Co., 320 U.S. 591, 603 (1944). Utility rates are established periodically by proceedings before the PSC known colloquially within the industry as “rate cases.” Rates are based on the amount of revenue necessary to build, maintain, and operate the utility plants and associated infrastructure (referred to as “rate base”), plus a reasonable rate of return for utility company investors. Hope

4 While the Sierra Club, a party to the case, did not sign the stipulation, it authorized the signatories to indicate it did not oppose the stipulation and it entered no opposition after it was filed. Pursuant to CSR 240-2.115, if no such objection is made for seven days after such a filing, the Commission can, and did, treat the stipulation and agreement as unanimous.

Natural Gas Co., 320 U.S. at 603. Unless otherwise provided for by law, an electrical corporation is not permitted to adjust the rate it charges customers until its next rate case. Even if an electrical corporation found it necessary to build a new power plant years before its next rate case, unless expressly permitted to by statute, it would not ordinarily be allowed to recoup its expense or earn profit on that capital investment in the interim. This phenomenon is referred to as “regulatory lag.”

At issue in this appeal is the interplay of two means which may allow Ameren to incorporate interim Wind Farm expenses and return into its rate structure: (1) PISA, which, if elected, requires them to defer eighty-five percent of interim depreciation expenses and returns (on qualifying plants) into a regulatory asset that is later taken into account at Ameren’s next general rate case; and (2) RESRAM, which permits an interim adjustment to the previously approved rate to reflect Ameren’s prudently incurred costs, as well as any benefits.

Missouri’s Renewable Energy Standard In 2007, Missouri enacted § 393.10305 establishing Missouri’s Renewable Energy Standard (RES) which required the PSC to “prescribe by rule a portfolio requirement for all electric utilities to generate or purchase electricity generated from renewable energy resources.” § 393.1030.1. The statute established what share of an electric utility’s sales must be comprised

5 In relevant part, § 393.1030.1 states:

The commission shall, in consultation with the department, prescribe by rule a portfolio requirement for all electric utilities to generate or purchase electricity generated from renewable energy resources. Such portfolio requirement shall provide that electricity from renewable energy resources shall constitute the following portions of each electric utility's sales:

(1) No less than two percent for calendar years 2011 through 2013;

(2) No less than five percent for calendar years 2014 through 2017;

(3) No less than ten percent for calendar years 2018 through 2020; and (4) No less than fifteen percent in each calendar year beginning in 2021.

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In the Matter of the Application of Union Electric Company D/B/A Ameren Missouri for Permission and Approval and a Certificate of Public Convenience and Necessity Authorizing it to Construct a Wind Generation Facility Office of the Public Counsel v. Missouri Public Service Commission, (Mo. Ct. App. 2019).

In the Matter of the Application of Union Electric Company D/B/A Ameren Missouri for Permission and Approval and a Certificate of Public Convenience and Necessity Authorizing it to Construct a Wind Generation Facility Office of the Public Counsel v. Missouri Public Service Commission (In the Matter of the Application of Union Electric Company D/B/A Ameren Missouri for Permission and Approval and a Certificate of Public Convenience and Necessity Authorizing it to Construct a Wind Generation Facility Office of the Public Counsel v. Missouri Public Service Commission) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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