Federal Power Commission v. Idaho Power Co.

Decided November 10, 1952. William Orville Douglas delivered the opinion of the Court.

Docket 12 · 344 U.S. 17 (1952) · Cited 226 times

We don’t yet publish a summary of this opinion — read the official text below for the Court’s holding and reasoning.

How the Justices voted

Decided 7–0.

“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. Source: the Supreme Court Database (Spaeth et al.), Washington University.

Precedents cited

Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.

• Federal Communications Commission v. Pottsville Broadcasting Co. · 309 U.S. 134 (1940)
• Federal Trade Commission v. Morton Salt Co. · 334 U.S. 37 (1948)
• United States v. City & County of San Francisco · 310 U.S. 16 (1940)
• Ford Motor Co. v. National Labor Relations Board · 305 U.S. 364 (1939)
• Jacob Siegel Co. v. Federal Trade Commission · 327 U.S. 608 (1946)
• Pfister v. Northern Illinois Finance Corp. · 317 U.S. 144 (1942)

Cited by

Later Supreme Court opinions in our collection that cite this case.

• Federal Trade Commission v. Minneapolis-Honeywell Regulator Co. · 344 U.S. 206 (1952)
• Federal Communications Commission v. National Citizens Committee for Broadcasting · 436 U.S. 775 (1978)
• Federal Trade Commission v. Colgate-Palmolive Co. · 380 U.S. 374 (1965)
• Kleppe v. New Mexico · 426 U.S. 529 (1976)
• South Prairie Construction Co. v. Local No. 627, International Union of Operating Engineers · 425 U.S. 800 (1976)
• Ivanhoe Irrigation District v. McCracken · 357 U.S. 275 (1958)
• National Labor Relations Board v. Food Store Employees Union, Local 347 · 417 U.S. 1 (1974)
• Federal Power Commission v. Transcontinental Gas Pipe Line Corp. · 423 U.S. 326 (1976)
• Calcutt v. FDIC · 598 U.S. 623 (2023)

Official text

Read the official opinion (U.S. Reports, govinfo.gov)

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Source: the U.S. Reports via govinfo.gov; authoring Justice and vote lineup from the Supreme Court Database (Washington University). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-07-03. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).