Appellate Briefs

D.C. Cir. No. 25-1092 Notice denying late intervention, in proceeding to consider Sho-Me Power’s application to surrender the license for the Niangua Hydroelectric Project in Camden County, Missouri.  Sho-Me Power Electric Cooperative, Oct. 15, 2024 Notice, order on reh’g, 190 FERC ¶ 61,028 (2025).

S. Ct. No. 25-438 Opposition/Response to a petition for certiorari, seeking further review of decision of 9th Cir. court of appeals, affirming FERC rejection of PG&E’s request for rate incentive adder for its continued participation in California ISO.  Pacific Gas and Electric Co., 185 FERC ¶ 61,243 (2023), order on reh’g, 187 FERC ¶ 61,167 (2024), affirmed, Pacific Gas and Electric Co., Nos. 24-2527, et al., 2025 WL 1912363 (9th Cir. July 11, 2025).

4th Cir. No. 24-1650, et al. Rulemaking to improve regional transmission planning and cost allocation.  Order No. 1920, Bldg. for the Future Through Elec. Reg’l Transmission Planning & Cost Allocation, 187 FERC ¶ 61,068 (2024); Order 1920-A, 189 FERC ¶ 61,126 (2024); Order No. 1920-B, 191 FERC ¶ 61,026 (2025).

5th Cir. No. 25-60127, et al. Order on MISO and SPP filings, to implement Joint Targeted Interconnection Queue framework.  Midcontinent Indep. System Operator, Inc. and Southwest Power Pool, Inc., 189 FERC ¶ 61,108 (2024), order on reh’g, 191 FERC ¶ 61,231 (2025).

D.C. Cir. No. 23-1227, et al., Responsive Supplemental Brief on Standing. Order denying complaint and waiver request, related to SPP’s interconnection studies of Cage Ranch’s planned solar generating facility. Cage Ranch Solar, LLC, et al. v. Southwest Power Pool, Inc., 183 FERC ¶ 61,138 (2023), order on reh’g, 185 FERC ¶ 61,017 (2023).

D.C. Cir. No. 23-1227, et al., Corrected Opening Supplemental Brief on Mootness. Order denying complaint and waiver request, related to SPP’s interconnection studies of Cage Ranch’s planned solar generating facility.  Cage Ranch Solar, LLC, et al. v. Southwest Power Pool, Inc., 183 FERC ¶ 61,138 (2023), order on reh’g, 185 FERC ¶ 61,017 (2023).

D.C. Cir. No. 25-1086, et al. Order denying complaint, alleging that PSCo will improperly allocate costs for its proposed Colorado Power Pathway transmission project.  Municipal Energy Agency of Nebraska, et al. v. Pub. Serv. Co. of Colorado, 189 FERC ¶ 61,099 (2024), order on reh’g, 190 FERC ¶ 61,158 (2025).  

D.C. Cir. No. 24-1253, et al. Order granting, subject to conditions, authorization to construct and operate the System Alignment Program Project, to abandon certain pipeline facilities and to construct new pipeline facilities, two new compressor stations, and appurtenant equipment in Tennessee, North Carolina, and Virginia; pre-determination of rolled-in rate treatment, and access to CEII information.  East Tennessee Natural Gas, LLC, 186 FERC ¶ 61,210 (2024), order on reh’g, 189 FERC ¶ 61,232 (2024).

5th Cir., No. 25-60304. Order accepting modification to MISO’s generator interconnection study process to implement a queue cap and exemptions to that cap.  Midcontinent Indep. System Operator, 190 FERC ¶ 61,057 (2025), order on reh’g, 191 FERC ¶ 61,157 (2025).

5th Cir. No. 25-60019, et al. Order rejecting amended Interconnection Service Agreement (ISA) among PJM, Susquehanna Nuclear, LLC, and PPL Electric Utilities Corp, to increase the amount of co-located load.  PJM Interconnection, L.L.C., 189 FERC ¶ 61,078 (2024), order on reh’g, 191 FERC ¶ 61,025 (2025).

S. Ct. Nos. 24-1304, et al.  Brief for the Federal Energy Regulatory Commission in response to petitions for certiorari, seeking Supreme Court review of Dayton Power & Light Co., et al. v. FERC, 126 F.4th 1107 (6th Cir. 2025), which affirmed FERC limitation of ROE incentives for utilities compelled under state law to join and stay in regional transmission organization, and also addressing preemption and settlement issues.  Dayton Power & Light Co., 176 FERC ¶ 61,025 (2021), order on reh’g, 178 FERC ¶ 61,102 (2022); Office of the Ohio Consumers’ Counsel v. American Electric Power Serv. Corp., et al., 181 FERC ¶ 61,214 (2022), order on reh’g, 183 FERC ¶ 61,034 (2023).

D.C. Cir. Nos. 24-1291, et al. Opposition of Respondent FERC to Motion For Stay.

8th Cir. No. 25-1769, et al. Orders denying complaints and waiver request, concerning MISO protocols, under Joint Operating Agreement with SPP, for managing congestion at a particular flowgate.   Montana-Dakota Utilities Co. v Midcontinent Indep. Sys. Operator, Inc., et al., 188 FERC ¶¶ 61,168 and 61,169 (2024), orders on reh’g, 190 FERC ¶¶ 61,162 and 61,168 (2025).

8th Cir. No. 25-1007, et al. Orders denying complaints and waiver request, concerning MISO protocols, under Joint Operating Agreement with SPP, for managing congestion at a particular flowgate.   Montana-Dakota Utilities Co. v Midcontinent Indep. Sys. Operator, Inc., et al., 188 FERC ¶¶ 61,168 and 61,169 (2024), orders on reh’g, 190 FERC ¶¶ 61,162 and 61,168 (2025).

D.C. Cir. No. 24-1270, et al., Order accepting tariff revisions, to allocate the costs of Sunflower Byway facilities on a 100% regional, postage-stamp basis  Southwest Power Pool, Inc., 187 FERC ¶ 61,123 (2024), order on reh’g, 189 FERC ¶ 61,128 (2024).

S. Ct. No. 24-1262 Brief for the Federal Energy Regulatory Commission.  Notice rejecting request for rehearing, of blanket certificate issued in 1983, and denying late intervention.  Columbia Gas Transm. Corp., 186 FERC ¶ 62,052 (Feb. 7, 2024); Rehearing denied by operation of law, 187 FERC ¶ 62,027 (Apr. 11, 2024).

10th Cir. No. 25-9522 Order on compliance with earlier orders, concerning obligations of Tri-State members.  Tri-State Generation and Transmission Ass’n, 189 FERC ¶ 61,165 (2024), order on reh’g, 191 FERC ¶ 61,088 (2025).  [related to Tri-State v. FERC, 10th Cir. No. 24-9516, et al. (FERC brief filed 1/27/25)]

D.C. Cir. No. 23-1227, et al., Order denying complaint and waiver request, related to SPP’s interconnection studies of Cage Ranch’s planned solar generating facility.  Cage Ranch Solar, LLC, et al. v. Southwest Power Pool, Inc., 183 FERC ¶ 61,138 (2023), order on reh’g, 185 FERC ¶ 61,017 (2023).  

D.C. Cir. No. 25-1091. Order accepting PJM filing to remove Energy Efficiency Resource participation in PJM’s wholesale capacity market.  PJM Interconnection, L.L.C., 189 FERC ¶ 61,095 (2024), order on reh’g and stay, 190 FERC ¶ 61,081 (2025).

D.C. Cir. No. 24-1263, et al., Order following hearing and ALJ initial decision, concerning TransCanada Keystone Variable Rate pursuant to the Transportation Service Agreements between Keystone and certain committed shippers for crude oil transportation.  Husky US Mktg. LLC, et al. v. TransCanada Keystone Pipeline, LP, Opinion No. 590, 188 FERC ¶ 61,077 (2024).