Litigation Updates & Reports

Updates Since Apr 09, 2026

Last update: Apr 20, 2026 8:22 pm
17
Apr
16
Apr
DASI Complaint (A. Gaal)

ISO-NE responds to A. Gaal Complaint, urging it be dismissed or denied.

16
Apr
203 Application: Vistra/Cogentrix (Nautilus Power et al.)

Applicants respond to ISO-NE IMM’s objection to providing, even subject to a Protective Agreement, a copy of the confidential, non-public information that it filed with the FERC in this proceeding.

15
Apr
LGIAs: Versant/Evergreen III, Stetson Holdings, Stetson II

ISO-NE and Versant file 3 replacement LGIAs (one each of Evergreen III, Stetson Holdings, and Stetson II) as a result of each facility reestablishing Capacity Resource Network Interconnection Service (CNRIS) and 2) a change in ownership for the units. 

Expand
15
Apr
American Efficient Penalties Order

Finding “American Efficient, LLC and its affiliates … stole half a billion dollars from hard-working Americans by collecting compensation for fake “energy efficiency resources” and its “money-for-nothing scheme blatantly violated” tariffs and “manipulated multiple electric markets over the course of many years,” the FERC’s Penalties Order requires American Efficient to disgorge approximately $410 million in unjust profits and imposes a civil penalty of $722 million.

Expand
15
Apr
LFTR Implementation Quarterly Status Reports

ISO-NE files its 70th quarterly report

15
Apr
203 Application: Vistra/Cogentrix (Nautilus Power et al.)

PJM IMM withdraws its request for confidential information from ISO-NE

14
Apr
Base ROE - Writ for Stay

Avangrid (CMP, UI) and Eversource (CL&P, NSTAR, PSNH) petition the DC Circuit Ct, of Appeals for a writ, under the All Writs Act, staying Opinion 594 with respect to the Oct 16, 2014-Mar 19, 2026 refund period, arguing that, absent a stay, Opinion 594 will cause them and their customers immediate, irreversible financial and operational harm that cannot be undone even if Opinion 594 is later vacated

Expand
14
Apr
Base ROE - Refund Obligation Extension

FERC extends the Opinion 594 deadlines to complete refunds to and including May 20, 2027, and to submit the refund report to and including Jun 4, 2027.

13
Apr
Base ROE - Refund Obligation: Request for Stay

Stay Opponents* oppose Indicated TOs** Apr 2 Request for Stay of Opinion 594 Refund Obligation.

 

*Stay Opponents: CT PURA, CT AG, CT OCC, MA AGO, MA DPU, MOPA, NH OCA, RI Div, MMWEC, AIM, TEC, Power Options, IECG, and NHEC 

** Indicated TOs: CMP, UI (Avangrid) and CL&P, NSTAR, PSNH (Eversource)

Expand
13
Apr
Base ROE - Refund Obligation Extension of Time

Extension Respondents* recommend any extension to the Opinion 594 Refund Obligation be limited to no more than 9 months

 

*Extension Respondents are:  the the MA AGO, MA DPU, CT PURA, CT OCC, MOPA, NH OCA, RI Div, MMWEC, AIM, TEC, Power Options, IECG, NHEC

Expand
13
Apr
203 Application: Vistra/Cogentrix (Nautilus Power et al.)

ISO-NE IMM objects to Vistra/Cogentrix request for disclosure, subject to a standard FERC protective agreement, of the confidential, non-public version of the IMM’s Market Power Assessment Report filed in this proceeding

Expand
Close