delivered the opinion of the Court.
This case presents questions under Title II of the Federal Power Act, 49 Stat. 847, 16 U. S. C. § 824
et seq.,
which are in part similar to those we have decided today under the Natural Gas Act in
United Gas Pipe Line Co.
v.
Mobile Gas Service Corp., ante,
p. 332.
Respondent Sierra Pacific Power Company (Sierra) distributes electricity to consumers in northern Nevada and eastern California. For many years, it has purchased the major part of its electric power from petitioner Pacific Gas and Electric Company (PG&E), a “public utility” subject to regulation under Part II of the Federal Power Act. In 1947 Sierra, faced with increased postwar demands and consumer agitation for cheaper power, began
Early in 1953, when power from Shasta Dam was no longer available to Sierra, PG&E, without the consent of Sierra, filed with the Commission under § 205 (d) of the Federal Power Act a schedule purporting to increase its rate to Sierra by approximately 28%. The Commission, acting under § 205 (e), suspended the effective date of the new rate until September 6, 1953, and initiated a proceeding to determine its reasonableness. Sierra was permitted to intervene in the proceeding but its motion to reject the filing on the ground that PG&E could not thus unilaterally change the contract was denied. After completion of the hearings, the Commission, by order dated June 17, 1954, reaffirmed its refusal to reject the filing and held the new rate not to be “unjust, unreasonable, unduly discriminatory, or preferential.” 7 P. U. R. 3d 256. On Sierra's petition for review, the Court of Appeals for the District of Columbia, holding that the contract rate could be changed only upon a finding by the Commission that it was unreasonable, set aside the Commission’s order and remanded the case with instructions to the Commission to dismiss the § 205 (e) proceeding, but without prejudice to its instituting a new proceeding under § 206 (a) to determine the reasonableness of the contract rate. 96 U. S. App. D. C. 140,
The first question before us is whether PG&E’s unilateral filing of the new rate under § 205 (d), and the
This case, however, raises a further question not present in the Mobile case. The Commission has undoubted power under § 206 (a) to prescribe a change in contract rates whenever it determines such rates to be unlawful. While this power is limited to prescribing the rate “to be thereafter observed” and thus can effect no change prior to the date of the order, the Commission’s order here, if based on the necessary findings, could have been effective to prescribe the proposed rate as the rate to be in effect prospectively from the date of the order, June 17, 1954. If the proceedings here satisfied in substance the requirements of § 206 (a), it would seem immaterial that the investigation was begun as one into the reasonableness of the proposed rate rather than the existing contract rate.
The condition precedent to the Commission’s exercise of its power under § 206 (a) is a finding that the existing rate is “unjust, unreasonable, unduly discriminatory or preferential.” Petitioners contend that the Commission did in fact make such a finding. It was stipulated in the proceedings before the Commission that 5.5% was normally a reasonable rate of return for PG&E’s operations,
“However, we may point out that if a finding on the lawfulness of the 1948 contract rate were necessary or appropriate, on the record before us that finding would have to be that the 1948 rate is unreasonably low and therefore unlawful. For none of the evidence in this record warrants a finding that any rate would be reasonable that would produce a return of substantially less than the 4.75% resulting from the proposed rate, which is the minimum PG&E is willing to accept.”
It is contended that by this statement the Commission in substance found that the existing contract rate was “unreasonable” and fixed the proposed rate as “the just and reasonable rate,” thereby satisfying the requirements of §206 (a).
But even accepting this statement as a finding of unreasonableness of the contract rate, the Commission’s conclusion appears on its face to be based on an erroneous standard. In short, the Commission holds that the
Whether under the facts of this case the contract rate is so low as to have an adverse effect on the public interest is of course a question to be determined in the first instance by the Commission. We shall therefore affirm the order of the Court of Appeals, with instructions to remand the case to the Federal Power Commission for such further proceedings, not inconsistent with this opinion, as the Commission may deem desirable.
It is so ordered.
Notes
“Sec. 205. . . . (c) Under such rules and regulations as the Commission may prescribe, every public utility shall file with the Commission, within such time and in such form as the Commission may designate, and shall keep open in convenient form and place for public inspection schedules showing all rates and charges for any transmission or sale subject to the jurisdiction of the Commission, and the classifications, practices, and regulations affecting such rates and charges, together with all contracts which in any manner affect or relate to such rates, charges, classifications, and services.
“(d) Unless the Commission otherwise orders, no change shall be made by any public utility in any such rate, charge, classification, or service, or in any rule, regulation, or contract relating thereto, except after thirty days’ notice to the Commission and to the public. Such notice shall be given by filing with the Commission and keeping open for public inspection new schedules stating plainly the change or changes to be made in the schedule or schedules then in force and the time when the change or changes will go into effect. The Commission, for good cause shown, may allow changes to take effect without requiring the thirty days’ notice herein provided for by an order specifying the changes so to be made and the time when they shall take effect and the manner in which they shall be filed and published.
“(e) Whenever any such new schedule is filed the Commission shall have authority, either upon complaint or upon its own initiative without complaint, at once, and, if it so orders, without answer or formal pleading by the public utility, but upon reasonable notice, to enter upon a hearing concerning the lawfulness of such rate, charge, classification, or service; and, pending such hearing and the decision thereon, the Commission, upon filing with such schedules and delivering to the public utility affected thereby a statement in writing of its reasons for such suspension, may suspend the operation of such schedule and defer the use of such rate, charge, classification, or service, but not for a longer period than five months beyond the time when it would otherwise go into effect; and after full hearings, either completed before or after the rate, charge, classification, or service goes into effect, the Commission may make such orders with reference thereto as would be proper in a proceeding initiated after it had become effective. If the proceeding has not been concluded
“Sec, 206. (a) Whenever the Commission, after a hearing had upon its own motion or upon complaint, shall find that any rate, charge, or classification, demanded, observed, charged, or collected by any public utility for any transmission or sale subject to the jurisdiction of the Commission, or that any rule, regulation, practice, or contract affecting such rate, charge, or classification is unjust, unreasonable, unduly discriminatory or preferential, the Commission shall determine the just and reasonable rate, charge, classification, rule, regulation, practice, or contract to be thereafter observed and in force, and shall fix the same by order.” 49 Stat. 852, 16 U. S. C. § 824e.
Set forth as footnote 1 to the opinion in the Mobile case, ante, p. 334.
