{
  "id": "az-acc-e01933a-25-0187-tep-humphreys-peak-esa",
  "jurisdiction": "AZ",
  "kind": "order",
  "status": "approved",
  "title": "Tucson Electric Power Company Special Contract (Energy Supply Agreement) with Humphrey's Peak Power, LLC - ACC Decision No. 81587 (Docket No. E-01933A-25-0187)",
  "citation": "In the Matter of the Application of Tucson Electric Power Company for Approval of a Special Agreement for Electric Service with Humphrey's Peak Power, LLC, Ariz. Corp. Comm'n Docket No. E-01933A-25-0187, Decision No. 81587 (Open Meeting Dec. 3, 2025; docketed Dec. 10, 2025)",
  "docket_no": "E-01933A-25-0187",
  "agency": "Arizona Corporation Commission (ACC)",
  "utility": "Tucson Electric Power Company (TEP), a UNS Energy Corporation subsidiary",
  "verification": "verified",
  "updated_at": "2026-08-21T14:52:12.584514+00:00",
  "record_url": "https://verifiedatlas.com/i/az-acc-e01933a-25-0187-tep-humphreys-peak-esa/",
  "snapshot_built_at": "2026-09-14T14:33:17+00:00",
  "sources": [
    {
      "url": "https://docket.images.azcc.gov/0000215738.pdf",
      "pinpoint": "p.8-9 (ORDER paragraphs)",
      "quote": "IT IS THEREFORE ORDERED that Tucson Electric Power Company Energy Supply Agreement with Humphrey's Peak Power, LLC, is hereby approved, as discussed herein... IT IS FURTHER ORDERED that approval of the Tucson Electric Power Company Energy Supply Agreement with Humphrey's Peak Power, LLC does not guarantee any future ratemaking treatment of the Special Contract",
      "quote_chars": 362,
      "title": "ACC Decision No. 81587, Docket No. E-01933A-25-0187",
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    },
    {
      "url": "https://docket.images.azcc.gov/0000215738.pdf",
      "pinpoint": "p.11 (Walden dissent letter, first substantive paragraph)",
      "quote": "The load anticipated by this contract is for 286 MWs, with an additional 64 MWs to serve by in full in 2027. The 300 MWs represents between 10% - 15% of TEP's current generating capacity, and while their recent 2023 Integrated Resource Plan projected load growth in their service territory of approximately 50 MWs per year, this 300 MWs is over and above that forecasted load demand they expect to serve. TEP maintains a reserve margin of approximately 15%, which allows them to reliably serve peak load during the summer. I understand from answers TEP provided during the December 3, 2025 Open Meeting that they have some wholesale contracts that will soon be ending, but that available capacity represents only about half of the entire load contemplated by this contract.",
      "quote_chars": 773,
      "title": "ACC Decision No. 81587 - Dissenting Statement of Commissioner Rachel Walden",
      "source_type": "order",
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    },
    {
      "url": "https://docket.images.azcc.gov/0000215738.pdf",
      "pinpoint": "p.12 (Walden dissent letter, switchyard cost paragraph)",
      "quote": "the switchyard that will need to be constructed to serve this load was not anticipated being needed for reliability on TEP's system for at least 20 years into the future (and thus not included in the Thirteenth Biennial Transmission Assessment that this Commission voted on October 15, 2025). Constructing this switchyard to serve this customer will bring forward a roughly $25 million capital expenditure, which will be paid for through TEP's OATT and thus be included on existing customer's monthly bills in as early as 2027 or 2028. The ONLY way Humphrey's Peak would pay for $20 million of the total cost would be if Humphrey's Peak were to back out of the contract early. Otherwise, the cost will be socialized across ALL rate payers.",
      "quote_chars": 739,
      "title": "ACC Decision No. 81587 - Dissenting Statement of Commissioner Rachel Walden",
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    },
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      "url": "https://docket.images.azcc.gov/0000215738.pdf",
      "pinpoint": "p.8 (Findings of Fact, finding 3)",
      "quote": null,
      "quote_chars": 210,
      "title": "ACC Decision No. 81587, Docket No. E-01933A-25-0187 - Findings of Fact",
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    },
    {
      "url": "https://docket.images.azcc.gov/E000047706.pdf",
      "pinpoint": "p.2 (Application section)",
      "quote": null,
      "quote_chars": 143,
      "title": "ACC Utilities Division Memorandum & Proposed Order, Docket No. E-01933A-25-0187",
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    },
    {
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      "pinpoint": "p.2 (Key ESA provisions list, item 1)",
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      "title": "ACC Utilities Division Memorandum & Proposed Order, Docket No. E-01933A-25-0187",
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      "pinpoint": "p.3 (Energy Supply Agreement section)",
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      "title": "ACC Utilities Division Memorandum & Proposed Order, Docket No. E-01933A-25-0187",
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      "pinpoint": "p.4 (Project Construction Agreement paragraph)",
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      "title": "ACC Utilities Division Memorandum & Proposed Order, Docket No. E-01933A-25-0187",
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      "pinpoint": "p.4 (transmission cost recovery paragraph)",
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      "title": "ACC Utilities Division Memorandum & Proposed Order, Docket No. E-01933A-25-0187",
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    {
      "url": "https://efiling.azcc.gov/api/edocket/docket/29640",
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      "quote": null,
      "quote_chars": 155,
      "title": "ACC eDocket record for Docket No. E-01933A-25-0187 (TEP / Humphrey's Peak ESA)",
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  "access": "Recorded term fields, and quotes past the first 3, are in the $99 state pass or the $199 all-states pass. Identity, citation, every source document and every pinpoint are open. https://verifiedatlas.com/pricing/"
}