When and What to File

The Commission requires Category 2 market-based rate Sellers, as defined in 18 CFR 35.36, to file updated market power analyses (Triennials) on an ongoing basis.  If a Seller has not been designated as a Category 1 Seller for the specific region in question, it is by default a Category 2 Seller and must file an updated market power analysis for that region.

An entity that has not been designated as a Category 1 Seller in a region in which it has market-based rate authority must file an analysis even if it does not own assets in the region and does not transact in the region.


When preparing an updated market power analysis, an applicant's filing must include the following elements:

  • A transmittal letter explaining the filing and listing the documents submitted with the filing.
  • Contact information for the filing entity (including current phone number).
  • A description of the kinds of services the Commission has authorized the applicant to provide under its market-based rate tariff.
  • A description of the applicant's business activities.
  • A description of the owners and affiliates of the applicant that includes all of the applicant’s energy affiliates, including the identities of the upstream intermediate affiliates, and a description of their business activities, including the identification of ultimate upstream affiliates (See Boulder Solar II, LLC, 190 FERC ¶ 61,177 at P 15-16).  If the applicant has no affiliates, the application should represent that.  Affiliates are defined in 18 C.F.R. § 35.36(a)(9).  Ultimate upstream affiliates are defined in 18 C.F.R. § 35.36(a)(10).
  • Representations regarding how the applicant satisfies the Commission's concerns with regard to horizontal market power, consistent with 18 C.F.R. § 35.37 (b) and (c) (including the indicative study identifiers for the applicant’s Market Share and Pivotal Supplier Screens submitted into the market-based rate relational database).
  • Prior to filing, the indicative screen information must be submitted into the market-based rate relational database.  Applicants should ensure that they are using the appropriate study period for their horizontal market power analysis.
  • Representations of how the applicant satisfies the Commission's concerns with regard to vertical market power, consistent with 18 C.F.R. § 35.37(d) and (e).
  • The serial number for its asset appendix.  The applicant must reference either its most recently created asset appendix, or an asset appendix created fewer than 15 days before it makes its filing.  Accurate asset appendices are essential to the Commission’s mandate and Sellers should notify the Commission of any potential inaccuracies in their asset appendices.
  • If appropriate, a revised market-based rate tariff in eTariff that includes the required provisions in compliance with Order No. 697Order No. 697-AOrder No. 816Order No. 816-A, Order No. 819, and Order No. 860.
  • If the updated market power analysis filing does not contain revised tariff language, it may be eFiled or submitted by paper.

Triennial Review

The Commission will review Sellers with market-based rate authorization in each region every three years as detailed below according to the continuation of the rotating schedule originally listed in Appendix D to Order No. 697, as revised and corrected in Appendix D, D-1, and D-2 to Order No. 697-A, and Order No. 816 at Appendix C.  The schedule includes the following regions Northwest (NW), Southwest (SW), Central (CE), Southwest Power Pool (SPP), Northeast (NE), and Southeast (SE).

Map of the U.S. regions for triennial review.

Region
 
Study Period Filing Period
(anytime during this month)
Entities Required to File

SW

December 1, 2022- November 30, 2023

June 2025

Non-Transmission Owning Utilities

NW

December 1, 2022- November 30, 2023

June 2025

Transmission Owning Utilities

NW

December 1, 2022 - November 30, 2023

December 2025

Non-Transmission Owning Utilities

NE

December 1, 2023 - November 30, 2024

December 2025

Transmission Owning Utilities

SE

December 1, 2023 - November 30, 2024

June 2026

Transmission Owning Utilities

NE

December 1, 2023 - November 30, 2024

June 2026

Non-Transmission Owning Utilities

SE

December 1, 2023 - November 30, 2024

December 2026

Non-Transmission Owning Utilities

CE

December 1, 2024 - November 30, 2025

December 2026

Transmission Owning Utilities

SPP

December 1, 2024 - November 30, 2025

June 2027

Transmission Owning Utilities

CE

December 1, 2024 - November 30, 2025

June 2027

Non-Transmission Owning Utilities

SW

December 1, 2025 - November 30, 2026

December 2027

Transmission Owning Utilities

SPP

December 1, 2024 - November 30, 2025

December 2027

Non-Transmission Owning Utilities

SW

December 1, 2025 - November 30, 2026

June 2028

Non-Transmission Owning Utilities

NW

December 1, 2025 - November 30, 2026

June 2028

Transmission Owning Utilities

NW

December 1, 2025 - November 30, 2026

December 2028

Non-Transmission Owning Utilities

NE

December 1, 2026 - November 30, 2027

December 2028

Transmission Owning Utilities

SE

December 1, 2026 - November 30, 2027

June 2029

Transmission Owning Utilities

NE

December 1, 2026 - November 30, 2027

June 2029

Non-Transmission Owning Utilities

SE

December 1, 2026 - November 30, 2027

December 2029

Non-Transmission Owning Utilities

CE

December 1, 2027 - November 30, 2028

December 2029

Transmission Owning Utilities

SPP

December 1, 2027 - November 30, 2028

June 2030

Transmission Owning Utilities

CE

December 1, 2027 - November 30, 2028

June 2030

Non-Transmission Owning Utilities

SW

December 1, 2028 - November 30, 2029

December 2030

Transmission Owning Utilities

SPP

December 1, 2027 - November 30, 2028

December 2030

Non-Transmission Owning Utilities

SW

December 1, 2028 - November 30, 2029

June 2031

Non-Transmission Owning Utilities

NW

December 1, 2028 - November 30, 2029

June 2031

Transmission Owning Utilities

NW

December 1, 2028 - November 30, 2029

December 2031

Non-Transmission Owning Utilities

NE

December 1, 2029 - November 30, 2030

December 2031

Transmission Owning Utilities

SE

December 1, 2029 - November 30, 2030

June 2032

Transmission Owning Utilities

NE

December 1, 2029 - November 30, 2030

June 2032

Non-Transmission Owning Utilities

SE

December 1, 2029 - November 30, 2030

December 2032

Non-Transmission Owning Utilities

CE

December 1, 2030 - November 30, 2031

December 2032

-Transmission Owning Utilities

SPP

December 1, 2030 - November 30, 2031

June 2033

Transmission Owning Utilities

CE

December 1, 2030 - November 30, 2031

June 2033

Non-Transmission Owning Utilities

SW

December 1, 2031 - November 30, 2032

December 2033

Transmission Owning Utilities

SPP

December 1, 2030 - November 30, 2031

December 2033

Non-Transmission Owning Utilities

SW

December 1, 2031 - November 30, 2032

June 2034

Non-Transmission Owning Utilities

NW

December 1, 2031 - November 30, 2032

June 2034

Transmission Owning Utilities

NW

December 1, 2031 - November 30, 2032

December 2034

Non-Transmission Owning Utilities

NE

December 1, 2032 - November 30, 2033

December 2034

Transmission Owning Utilities

SE

December 1, 2032 - November 30, 2033

June 2035

Transmission Owning Utilities

NE

December 1, 2032 - November 30, 2033

June 2035

Non-Transmission Owning Utilities

SE

December 1, 2032 - November 30, 2033

December 2035

Non-Transmission Owning Utilities

CE

December 1, 2033 - November 30, 2034

December 2035

Transmission Owning Utilities

SPP

December 1, 2033 - November 30, 2034

June 2036

Transmission Owning Utilities

CE

December 1, 2033 - November 30, 2034

June 2036

Non-Transmission Owning Utilities

SW

December 1, 2034 - November 30, 2035

December 2036

Transmission Owning Utilities

SPP

December 1, 2033 - November 30, 2034

December 2036

Non-Transmission Owning Utilities

SW

December 1, 2034 - November 30, 2035

June 2037

Non-Transmission Owning Utilities

NW

December 1, 2034 - November 30, 2035

June 2037

Transmission Owning Utilities

NW

December 1, 2034 - November 30, 2035

December 2037

Non-Transmission Owning Utilities

NE

December 1, 2035 - November 30, 2036

December 2037

Transmission Owning Utilities

SE

December 1, 2035 - November 30, 2036

June 2038

Transmission Owning Utilities

NE

December 1, 2035 - November 30, 2036

June 2038

Non-Transmission Owning Utilities

SE

December 1, 2035 - November 30, 2036

December 2038

Non-Transmission Owning Utilities

CE

December 1, 2036 - November 30, 2037

December 2038

Transmission Owning Utilities

SPP

December 1, 2036 - November 30, 2037

June 2039

Transmission Owning Utilities

CE

December 1, 2036 - November 30, 2037

June 2039

Non-Transmission Owning Utilities

SW

December 1, 2037 - November 30, 2038

December 2039

Transmission Owning Utilities

SPP

December 1, 2036 - November 30, 2037

December 2039

Non-Transmission Owning Utilities

SW

December 1, 2037 - November 30, 2038

June 2040

Non-Transmission Owning Utilities

NW

December 1, 2037 - November 30, 2038

June 2040

Transmission Owning Utilities

NW

December 1, 2037 - November 30, 2038

December 2040

Non-Transmission Owning Utilities

This page was last updated on May 02, 2025