Ameren Illinois Company v. The Illinois Commerce Commission

2015 IL App (4th) 140173, 33 N.E.3d 987
CourtAppellate Court of Illinois
DecidedJune 2, 2015
Docket4-14-0173, 4-14-0182 cons.
StatusUnpublished
Cited by2 cases

This text of 2015 IL App (4th) 140173 (Ameren Illinois Company v. The Illinois Commerce Commission) is published on Counsel Stack Legal Research, covering Appellate Court of Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Ameren Illinois Company v. The Illinois Commerce Commission, 2015 IL App (4th) 140173, 33 N.E.3d 987 (Ill. Ct. App. 2015).

Opinion

2015 IL App (4th) 140173 FILED June 2, 2015 Carla Bender NOS. 4-14-0173, 4-14-0182 cons. 4th District Appellate Court, IL IN THE APPELLATE COURT

OF ILLINOIS

FOURTH DISTRICT

AMEREN ILLINOIS COMPANY, ) Appeal from Petitioner, ) Order of the Illinois v. (No. 4-14-0173) ) Commerce Commission. THE ILLINOIS COMMERCE COMMISSION; THE ) No. 13-0192 CITIZENS UTILITY BOARD; THE ILLINOIS ) INDUSTRIAL ENERGY CONSUMERS (Archer- ) ) Daniels-Midland Company, Caterpillar, Inc., Air ) Products and Chemical Company, and United States ) Steel Corporation-Granite City Works); and THE ) OFFICE OF THE ATTORNEY GENERAL, ) Respondents. ) ____________________________________________ ) ) ) DOMINION RETAIL, INC., and INTERSTATE GAS ) SUPPLY OF ILLINOIS, INC., ) Petitioners, ) v. (No. 4-14-0182) ) THE ILLINOIS COMMERCE COMMISSION; ) AMEREN ILLINOIS COMPANY, d/b/a AMEREN ) ILLINOIS; THE CITIZENS UTILITY BOARD; THE ) ) PEOPLE OF THE STATE OF ILLINOIS; THE ) ILLINOIS INDUSTRIAL ENERGY CONSUMERS; ) THE ILLINOIS COMPETITIVE ENERGY ) ASSOCIATION; and THE RETAIL ENERGY ) SUPPLY ASSOCIATION, ) Respondents.

JUSTICE APPLETON delivered the judgment of the court, with opinion. Justice Harris concurred in the judgment and opinion. Justice Steigmann concurred in part and dissented in part, with opinion. OPINION

¶1 In tariffs it filed with the Illinois Commerce Commission (Commission), Ameren

Illinois Company (Ameren) proposed increasing its rates for natural gas. The Commission

suspended the tariffs and held an evidentiary hearing on them. The hearing culminated in a

lengthy written decision by the Commission. Ameren appeals from one aspect of that decision,

namely, the rate of return the Commission allowed Ameren on its equity. We are unable to say

that, in setting the rate of return, the Commission made a decision that was against the manifest

weight of the evidence. Therefore, in Ameren's appeal, case No. 4-14-0173, we affirm the

Commission's decision.

¶2 The other appeal, case No. 4-14-0182, which we have consolidated with Ameren's

appeal, arises from the same administrative case but concerns different tariffs. After filing its

tariffs proposing an increase in gas rates, Ameren filed "rider" tariffs proposing the establishment

of a small volume transportation program, a program that would allow retail gas suppliers to use

Ameren's infrastructure to deliver natural gas to customers who chose to enter into contracts with

the retail gas suppliers. The Commission approved the small volume transportation program but

required retail gas suppliers to abide by three consumer protections, over and above those that

statutory law already provided. Two interveners, Dominion Retail, Inc., and Interstate Gas

Supply of Illinois, Inc. (which we will call, collectively, "the retail gas suppliers," "the

alternative gas suppliers," or simply "the suppliers"), challenge the three consumer protections.

They contend the Commission lacked statutory authority to require these protections, and they

also contend there was no evidence that the protections were even necessary. We conclude the

Commission had statutory authority to require the inclusion of the new consumer protections in

the small volume transportation tariffs. The suppliers insist that little or no historical evidence

-2- justified these protections. But that is no reason to overturn them. A protection can serve the

legitimate function of preventing an injury from ever happening. Viewing the new consumer

protections that way, we defer to the Commission's judgment that they would be just and

reasonable conditions in Ameren's small volume transportation tariffs. Therefore, we affirm the

Commission's decision in the suppliers' appeal as well.

¶3 I. BACKGROUND

¶4 A. Ameren's Revenue Requirement

¶5 1. The Capital Asset Pricing Model

¶6 a. An Introduction to This Model

¶7 To determine the rates a public utility may charge its customers, the Commission

must determine the utility's revenue requirement. Business & Professional People for the Public

Interest v. Illinois Commerce Comm'n, 146 Ill. 2d 175, 195 (1991). The revenue requirement

equals the utility's operating costs plus the rate base multiplied by an allowed rate of return.

People ex rel. Madigan v. Illinois Commerce Comm'n, 2011 IL App (1st) 100654, ¶ 26. In the

rates a regulated utility charges its customers, it not only deserves to be compensated for its

operating costs, but it also deserves a return on its investment: a return on the rate base. Id.

(The "rate base" is "the total value of all invested capital." Commonwealth Edison Co. v. Illinois

Commerce Comm'n, 2014 IL App (1st) 130302, ¶ 10.)

¶8 In setting rates, the Commission has to decide what, in the mind of a reasonable

investor, would be an attractive enough return on the present value of the utility's property. Id.

¶ 11. For several years, the Commission has used the capital asset pricing model (CAPM) to

determine the minimum rate of return needed to entice a reasonable investor to invest in a public

utility. (As we will discuss later, the Commission also uses the discounted cash flow (DCF)

-3- model. But Ameren does not appeal any aspect of the Commission's application of the DCF

model in this case.)

¶9 According to the CAPM, the required rate of return is a function of three things:

(1) a risk-free rate of return; (2) the premium that average-risk stocks must pay over the risk-free

rate to entice investors; and (3) the riskiness of the utility's equity in comparison to average-risk

stocks. Peter V. Pantaleo & Barry W. Ridings, Reorganization Value, 51 Bus. Law. 419, 433

(1996). The CAPM formula regards these three things as having the following relationship:

Cost of equity = R(f) + (Beta x [R(m) – R(f)])

Where: R(f) = risk-free rate of return

Beta = beta coefficient of the utility's stock, which

measures the volatility of the utility's stock in comparison to the

volatility of the market as a whole

R(m) = expected rate of return on a market portfolio

comprised of a large number of diversified stocks, i.e., the

expected rate of return on average-risk stocks. See id.

¶ 10 Expressed in words, the formula means this. The cost of the utility's equity—the

required rate of return for the utility—"is equal to the sum of the risk-free rate of return plus a

risk premium (i.e., a return above the risk[-]free rate)." Id. The formula assumes that if

investing in the utility would yield a rate of return no greater than that of treasury securities,

which are the prototypical risk-free investment, no sensible person would invest in the utility.

The utility would be riskier than treasury securities, and any rational investor would want

compensation, a premium, for the additional risk. Therefore, to entice investors, the utility has to

-4- offer a risk premium, some amount above the risk-free rate. In the formula above, the symbols

to the right of the plus sign determine that risk premium.

¶ 11 The risk premium the utility must offer is determined by multiplying the volatility

of the utility's equity by the market premium, the premium that investors expect the market as a

whole (the average-risk stocks) to pay above a risk-free investment (treasury securities).

Pantaleo and Ridings explain it this way—and for our purposes, the "target company" is the

utility:

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Ameren Illinois Company v. The Illinois Commerce Commission
2015 IL App (4th) 140173 (Appellate Court of Illinois, 2015)

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