HKB
was quickly negatived, however, by the Hope Gas Case (320 U.S. 591 (1944)) which dispensed with the necessity of relying upon any formula for the purpose of fixing valid rates.
(4) Depreciation.--No less indispensable to the determination of the fair value mentioned in Smyth v. Ames was the amount of depreciation to be allowed as a deduction from the measure of cost employed, whether the latter be actual cost, reproduction cost, or any other form of cost determination. Although not mentioned in Smyth v. Ames, the Court gave this item consideration in Knoxville v. Knoxville Water Co., 212 U.S. 1, 9-10 (1909); but notwithstanding its early recognition as an allowable item of deduction in determining value, depreciation continued to be the subject of controversy arising out of the difficulty of ascertaining it and of computing annual allowances to cover the same. Indicative of such controversy has been the disagreement as to whether annual allowances granted shall be in such amount as will permit the replacement of equipment at current costs; i.e., present value, or at original cost. In the Hope Gas Case, 320 U.S. 591, 606 (1944), the Court reversed United R. & Electric Co. v. West, 280 U.S. 234, 253-254 (1930), insofar as the latter holding rejected original cost as the basis of annual depreciation allowances.
(5) Going Concern Value and Good Will.--Whether or not intangibles were to be included in valuation was not passed upon in Smyth v. Ames; but shortly thereafter, in Des Moines Gas Co. v. Des Moines, 238 U.S. 153, 165 (1915), the Court declared it to be self-evident "that there is an element of value in an assembled and established plant, doing business and earning money, over one not thus advanced, * * * [and that] this element of value is a property right, and should be considered in determining the value of the property, upon which the owner has a right to make a fair return * * *." Generally described as going concern value, this element has never been precisely defined by the Court, and the latter has accordingly been plagued by the difficulty of determining its worth. In its latest pronouncement on the subject, uttered in Power Comm'n. v. Nat. Gas Pipeline Co., 315 U.S. 575, 589 (1942), the Court denied that there is any "constitutional requirement that going concern value, even when it is an appropriate element to be included in a rate base, must be separately stated and appraised as such * * * valuations for rate purposes of a business assembled as a whole * * * [have often been] sustained without separate appraisal of the going concern element.