Allowances paid by gas and electric utilities under their promotional programs constituted rebates. Att. Gen. Op. 65-18.

PUC may permit Honolulu Rapid Transit to charge reduced rates for senior citizens during non-peak hours. Att. Gen. Op. 69-30.

Operation of a fuel oil adjustment clause is not a "rate increase". "Rate" is synonymous with "rate schedule". Att. Gen. Op. 76-1.

Constitutional. 33 H. 890, aff'd 96 F.2d 412, aff'd 305 U.S. 306.

May not regulate rates and charges in interstate commerce. 24 H. 136. Hawaiian Telephone, only Interstate Commerce Commission may fix rates. 26 H. 508.

Regulation of interisland service. 32 H. 127. Rates for gas. 33 H. 487.

Appeal to supreme court directly does not lie from order requiring carrier to relocate tracks. 25 H. 332. Interlocutory order not appealable. 33 H. 697.

Applicant before PUC aggrieved, when. 44 H. 634, 637, 361 P.2d 390.

Section was inoperative with respect to air carrier rates during the 2-year transition period when C.A.B. jurisdiction over air carriers was continued by §15 of Admission Act. 44 H. 634, 361 P.2d 390.

To comply with 91-12, commission must rule on all proposed findings and its findings must be reasonably clear. 54 H. 663, 513 P.2d 1376.

Director of regulatory agencies as protector of consumer's interest is party to proceeding before PUC. 54 H. 663, 513 P.2d 1376.

Persons aggrieved who were involved as participants in hearings may appeal to Supreme Court when PUC staff fails to do so. 56 H. 260, 535 P.2d 1102.

Utility's promotional expenditures should not have been allowed for ratemaking purposes. 56 H. 260, 535 P.2d 1102.

Tariff rate based partially upon value of equipment not owned by taxpayer does not properly reflect taxpayer's gross income. 57 H. 477, 559 P.2d 283.

Rehearings by administrative bodies are at their discretion. 60 H. 166, 590 P.2d 524.

Commission must make findings of fact as required by §91-12 when issuing interim rate increases. 60 H. 166, 590 P.2d 524.

Granting of interim rate increases conditioned on a refund provision is a valid exercise of commission's powers. 60 H. 166, 590 P.2d 524.

Charges made by a public utility are governed by tariff filed with PUC. 60 H. 582, 593 P.2d 375.

Under "just and reasonable" standard, it is the result reached and not the method employed which is controlling. 60 H. 625, 594 P.2d 612; 67 H. 370, 689 P.2d 741; 67 H. 425, 690 P.2d 274.

No abuse of discretion in utilizing original cost method of valuating rate base, or in concluding that telephone company's plant-in-service was used or useful for public utility purposes. 65 H. 293, 651 P.2d 475.

Commission did not arbitrarily limit rate award. 67 H. 370, 689 P.2d 741.

Rebuttable presumption that a contribution was made by lot owners, or lessees, for construction of a utility system arises only if certain factors reveal intent by developer to obtain double recovery for its capital construction costs; commission erred in applying rebuttable presumption. 83 H. 132, 925 P.2d 302.

Under subsection (f) (1997), direct appeal to supreme court from PUC order lies only when PUC order pertains to regulation of utility rates or ratemaking procedures; supreme court thus lacked jurisdiction to hear direct appeal for PUC order pertaining to placement of transmission line. 85 H. 322, 944 P.2d 1265.