Tucson Electric Power Company; UNS Electric, Inc.; UniSource Energy Development Company; Tucson Electric Power Company: Notice of Institution of Section 206 Proceeding and Refund Effective Date

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Published

April 9, 2026

Issuing agencies

Energy DepartmentFederal Energy Regulatory Commission

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<title>Federal Register, Volume 91 Issue 68 (Thursday, April 9, 2026)</title>
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[Federal Register Volume 91, Number 68 (Thursday, April 9, 2026)]
[Notices]
[Pages 17965-17966]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-06860]


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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. EL26-55-000]


Tucson Electric Power Company; UNS Electric, Inc.; UniSource 
Energy Development Company; Tucson Electric Power Company: Notice of 
Institution of Section 206 Proceeding and Refund Effective Date

    On April 3, 2026, the Commission issued an order in Docket No. 
EL26-55-000 pursuant to section 206 of the Federal Power Act (FPA), 16 
U.S.C. 824e, instituting an investigation to

[[Page 17966]]

determine whether Tucson Electric Power Company, UNS Electric, Inc. and 
UniSource Energy Development Company's market-based rate authority in 
the Tucson Electric balancing authority area is unjust, unreasonable, 
unduly discriminatory or preferential, or otherwise unlawful. Tucson 
Electric Power Company, 195 FERC ] 61,008 (2026).
    The refund effective date in Docket No. EL26-55-000, established 
pursuant to section 206(b) of the FPA, will be the date of publication 
of this notice in the Federal Register.
    Any interested person desiring to be heard in Docket No. EL26-55-
000 must file a notice of intervention or motion to intervene, as 
appropriate, with the Federal Energy Regulatory Commission, in 
accordance with Rule 214 of the Commission's Rules of Practice and 
Procedure, 18 CFR 385.214 (2025), within 21 days of the date of 
issuance of the order.
    In addition to publishing the full text of this document in the 
Federal Register, the Commission provides all interested persons an 
opportunity to view and/or print the contents of this document via the 
internet through the Commission's Home Page (<a href="http://www.ferc.gov">http://www.ferc.gov</a>) using 
the ``eLibrary'' link. Enter the docket number excluding the last three 
digits in the docket number field to access the document. From FERC's 
Home Page on the internet, this information is available on eLibrary. 
The full text of this document is available on eLibrary in PDF and 
Microsoft Word format for viewing, printing, and/or downloading. To 
access this document in eLibrary, type the docket number excluding the 
last three digits of this document in the docket number field. User 
assistance is available for eLibrary and the FERC's website during 
normal business hours from FERC Online Support at 202-502-6652 (toll 
free at 1-866-208-3676) or email at <a href="/cdn-cgi/l/email-protection#71171403121e1f1d181f14020401011e030531171403125f161e07"><span class="__cf_email__" data-cfemail="6e080b1c0d01000207000b1d1b1e1e011c1a2e080b1c0d40090118">[email&#160;protected]</span></a>, or the 
Public Reference Room at (202) 502-8371, TTY (202) 502-8659. Email the 
Public Reference Room at <a href="/cdn-cgi/l/email-protection#b8c8cddad4d1db96cadddeddcaddd6dbddcad7d7d5f8deddcadb96dfd7ce"><span class="__cf_email__" data-cfemail="502025323c39337e2235363522353e3335223f3f3d10363522337e373f26">[email&#160;protected]</span></a>.
    The Commission strongly encourages electronic filings of comments, 
protests and interventions in lieu of paper using the ``eFile'' link at 
<a href="http://www.ferc.gov">http://www.ferc.gov</a>. In lieu of electronic filing, you may submit a 
paper copy. Submissions sent via the U.S. Postal Service must be 
addressed to: Debbie-Anne A. Reese, Secretary, Federal Energy 
Regulatory Commission, 888 First Street NE, Room 1A, Washington, DC 
20426. Submissions sent via any other carrier must be addressed to: 
Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 
12225 Wilkins Avenue, Rockville, Maryland 20852.
    For public inquiries and assistance with making filings such as 
interventions, comments, or requests for rehearing, contact the Office 
of Public Participation at (202) 502-6595 or <a href="/cdn-cgi/l/email-protection#ffb0afafbf999a8d9cd1989089"><span class="__cf_email__" data-cfemail="4d021d1d0d2b283f2e632a223b">[email&#160;protected]</span></a>.

    Dated: April 6, 2026.
Carlos D. Clay,
Deputy Secretary.
[FR Doc. 2026-06860 Filed 4-8-26; 8:45 am]
BILLING CODE 6717-01-P


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