FERC Receives Multiple Electric Rate Filings April 2026
Summary
The Federal Energy Regulatory Commission published a notice on April 16, 2026 listing 17 electric rate filings received from utilities including Tri-State Generation and Transmission Association, Tucson Electric Power Company, Southwest Power Pool, Midcontinent Independent System Operator, Avista Corporation, and Alabama Power Company. The filings cover supplements to existing rate schedules, tariff amendments, and new market participant agreements. Comment deadlines for interventions and protests are set for May 6–7, 2026 depending on the specific docket.
What changed
This notice announces the receipt of multiple electric rate filings under Sections 205(d) and 35.15 of FERC's regulations. Filings include supplements to existing rate schedules, tariff amendments, LGIA termination requests, construction agreements, and initial rate filings for market-based rate authority. Comment deadlines for interventions and protests are May 6, 2026 and May 7, 2026. Any person wishing to intervene or protest must file in accordance with Rules 211, 214, or 206 of the Commission's Regulations on or before 5:00 p.m. Eastern time on the specified comment date. This notice does not itself constitute a decision on any filing but provides notice to interested parties of the opportunity to participate in the proceedings.
Archived snapshot
Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Content
Take notice that the Commission received the following electric rate filings:
Docket Numbers: ER20-681-015; ER20-681-016.
Applicants: Tri-State Generation and Transmission Association, Inc.
Description: Supplement to 02/02/2026, Notice of Change in Status of Tri-State Generation and Transmission Association, Inc.
Filed Date: 4/15/26.
Accession Number: 20260415-5219.
Comment Date: 5 p.m. ET 5/6/26.
Docket Numbers: ER26-1500-001.
Applicants: Tucson Electric Power Company.
Description: Tariff Amendment: Amendment to Order 898 Compliance Filing ER26-1500 to be effective 4/27/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5129.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2216-000.
Applicants: Tucson Electric Power Company.
Description: § 205(d) Rate Filing: Amendment to Rate Schedule No. 359 to be effective 6/15/2026.
Filed Date: 4/15/26.
Accession Number: 20260415-5201.
Comment Date: 5 p.m. ET 5/6/26.
Docket Numbers: ER26-2217-000.
Applicants: Mid-Atlantic Interstate Transmission, LLC.
Description: § 205(d) Rate Filing: MAIT submits a new Construction Agmt—SA No. 7490 to be effective 6/16/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5023.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2218-000.
Applicants: Southwest Power Pool, Inc.
Description: § 205(d) Rate Filing: 4512R1 LRE Energy Services Market Participant Agreement to be effective 4/1/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5028.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2219-000.
Applicants: Southwest Power Pool, Inc.
Description: § 205(d) Rate Filing: 4492R1 Oklahoma Municipal Power Authority Market Participant Agreement to be effective 4/1/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5044.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2220-000.
Applicants: Midcontinent Independent System Operator, Inc.
Description: § 205(d) Rate Filing: 2026-04-16_SA 4740 ATC-Forest Junction Energy GIA (E0016) to be effective 4/8/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5067.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2221-000.
Applicants: Southwest Power Pool, Inc.
Description: § 205(d) Rate Filing: 3552R8 TEA and MEAN Meter Agent Agreement to be effective 4/1/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5072.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2222-000.
Applicants: APN Starfirst, LLC.
Description: Compliance filing: Rebaseline to new Tariff ID no company name—request cancel of old Tariff ID to be effective 4/16/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5100.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2223-000.
Applicants: American Powernet Management, LLC.
Description: Compliance filing: Rebaseline to new Tariff ID no company name—request cancel of old Tariff ID to be effective 4/16/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5103.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2224-000.
Applicants: Alabama Power Company, Georgia Power Company, Mississippi Power Company.
Description: Tariff Amendment: Alabama Power Company submits tariff filing per 35.15: Roxana Solar Project LGIA Termination Filing to be
effective 4/16/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5105.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2225-000.
Applicants: Alabama Power Company, Georgia Power Company, Mississippi Power Company.
Description: Tariff Amendment: Alabama Power Company submits tariff filing per 35.15: Tri-State II Solar Project (Solar & Battery) LGIA
Termination Filing to be effective 4/16/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5108.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2226-000.
Applicants: Oklahoma Gas and Electric Company.
Description: Compliance filing: Order No. 898 Compliance Filing to be effective 1/1/2025.
Filed Date: 4/16/26.
Accession Number: 20260416-5128.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2227-000.
Applicants: Avista Corporation.
Description: § 205(d) Rate Filing: Avista Corp—Non-Conforming LGIA RS T-1255, Great Bend Wind LLC to be effective 11/6/2025.
Filed Date: 4/16/26.
Accession Number: 20260416-5133.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2228-000.
Applicants: Avista Corporation.
Description: § 205(d) Rate Filing: Avista Corp—IPL Construction Agmt FERC RS T-1256 to be effective 10/28/2025.
Filed Date: 4/16/26.
Accession Number: 20260416-5149.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2229-000.
Applicants: New York Independent System Operator, Inc., Niagara Mohawk Power Corporation.
Description: § 205(d) Rate Filing: New York Independent System Operator, Inc. submits tariff filing per 35.13(a)(2)(iii: NYISO-National
Grid Joint 205: Amended SGIA Ticonderoga Solar SA2666 to be effective 4/2/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5163.
Comment Date: 5 p.m. ET 5/7/26.
Docket Numbers: ER26-2230-000.
Applicants: Hanwha Energy USA Holdings Corporation.
Description: Initial Rate Filing: Application for Market Based Rate Authority to be effective 4/17/2026.
Filed Date: 4/16/26.
Accession Number: 20260416-5203.
Comment Date: 5 p.m. ET 5/7/26.
The filings are accessible in the Commission's eLibrary system (https://elibrary.ferc.gov/idmws/search/fercgensearch.asp) by querying the docket number.
Any person desiring to intervene, to protest, or to answer a complaint in any of the above proceedings must file in accordance
with Rules 211, 214, or 206 of the Commission's Regulations (18 CFR 385.211, 385.214, or 385.206) on or before 5:00 p.m. Eastern
time on the specified comment date. Protests may be considered, but intervention is necessary to become a party to the proceeding.
eFiling is encouraged. More detailed information relating to filing requirements, interventions, protests, service, and qualifying
facilities filings can be found at: http://www.ferc.gov/docs-filing/efiling/filing-req.pdf. For other information, call (866) 208-3676 (toll free). For TTY, call (202) 502-8659.
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 OPP@ferc.gov.
Dated: April 16, 2026. Carlos D. Clay, Deputy Secretary. [FR Doc. 2026-07712 Filed 4-20-26; 8:45 am] BILLING CODE 6717-01-P
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