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Application of Hawaii Elec. Light Co., Inc.,60 Haw.625 (1979)
<br /> 594 P.2d 612
<br /> To calculate the rate of return, the costs of each component of capital debt,preferred stock and common equity are weighted
<br /> according to the ratio each bears to the total capital structure of the company and the resultant figures are *633 added together
<br /> to yield a sum which is the rate of return. South Central Bell Telephone Co.v.Louisiana Public Service Commission,La.,352
<br /> So.2d 964(1977),Cert.denied,437 U.S.910,98 S.Ct.3103,57 L.Ed.2d 1142(1978); City of Evansville v. Southern Indiana
<br /> Gas and Electric Co.,Ind.App.,339 N.E.2d 562(1975).
<br /> The proper return to be accorded common equity is the most difficult and least exact calculation in the whole rate of return
<br /> procedure since there is no contractual cost as in the case of debt or preferred stock. South Central Bell Telephone Co. v.
<br /> Louisiana Public Service Commission,supra,La.,352 So.2d at 964;Narragansett Electric Co.v.Harsch,supra, 117 R.I.at 425,
<br /> 368 A.2d at 1211;Butler,The Rate of Return in Texas The Neglected Issue,28 Baylor L.Rev. 937(1976).As the court pointed
<br /> out in South Central Bell Telephone Co.v.Louisiana Public Service Commission, supra,La.,352 So.2d at 973:
<br /> **619 Equity capital does not always pay dividends;all profits after fixed charges accrue to it and it must
<br /> withstand all losses.The cost of such capital cannot be read or computed directly from the company's books.
<br /> Its determination involves a judgment of what return on equity is necessary to enable the utility to attract
<br /> enough equity capital to satisfy its service obligations.
<br /> The Commission adopted 13%As the return on equity which HELCO would achieve at an 8.95%Rate of return and the Division
<br /> argues that the 13%Return to equity capital is not supported by the evidence.
<br /> The Commission agreed with HELCO that it could utilize HECO's cost of equity as its own cost of equity since HECO supplies
<br /> all of the common equity for HELCO.The Division questions the propriety of using HECO's cost of equity capital to determine
<br /> the adequacy of HELCO's rate of return. The Commission's adoption of HECO's cost of equity capital as HELCO's cost of
<br /> equity capital is hardly unprecedented.HELCO,as we have stated earlier,is a wholly-owned subsidiary of HECO.HELCO,as
<br /> a wholly-owned subsidiary, issues no stock to the public. Consequently,HELCO's cost of *634 equity is determined solely
<br /> by HECO's cost of equity since a portion of each share of HECO's common stock represents an investment in HELCO. Use
<br /> of the parent's capital structure has been criticized on the grounds that it fails to recognize,Inter alia,that each subsidiary may
<br /> experience significant differences in operating and financial risks. South Central Bell Telephone Co.v.Louisiana Public Service
<br /> Commission, supra, La., 352 So.2d at 971. Nevertheless, when a parent owns all or virtually all of the common stock of a
<br /> subsidiary, the cost of equity to the subsidiary can only be reckoned on the basis of the cost of equity capital to the parent
<br /> and most commissions have recognized this relationship between a corporate subsidiary and its parent. Re United Telephone
<br /> Co. of the West, 12 P.U.R.4th 462 (1975);Re Southwestern Bell Telephone Co., 98 P.U.R.3d 30 (1973);Re Columbia Gas of
<br /> Kentucky,Inc.,2 P.U.R.4th 109(1973);Re Northern States Power Co.,3 P.U.R.4th 388(1973);Re Columbia Gas of New York,
<br /> Inc.,97 P.U.R.3d 489(1972)Columbia Gas of New York,Inc., 97 P.U.R.3d 489 (1972).
<br /> In this case as is typical, to support the recommended 13% Common equity return rate, HELCO's expert witness relied on
<br /> comparable earnings studies which consisted of evidence showing the earnings rate of other companies.HELCO presented four
<br /> exhibits containing information on the return on common equity for various companies. The first exhibit shows the average
<br /> return on common equity earned by thirteen utilities during 1970-1974, which average ranged from 11.7% To 13.8%. The
<br /> second exhibit lists the authorized average return on common equity (14.15%)for the same thirteen utilities. The third exhibit
<br /> shows the average return on common equity(13.8%)authorized for twenty-four utilities in their most recent rate cases.Finally,
<br /> the fourth exhibit provides the average return on common equity actually earned(14%)for 1200 companies representing nearly
<br /> every business activity in the nation.
<br /> 1iEST LA'r CD 2024 Thomson Reuters. No claim to original U.S. Government Works. 6
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