Jun 08, 2026
At Westfield ESS’ request, NEPOOL withdraws request to terminate Participant status of Westfield ESS
Apr 30, 2026
New Member: Standard Normal Energy; Terminations: CS Berlin Ops; RWE Clean Energy Asset Holdings; RWE Clean Energy Solutions; Westfield ESS; and Wolverine Holdings
Feb 27, 2026
NEPOOL requests that Thunderhead Power be added to the 2d RNA’s list of Participants as of Mar 1, 2026.
Oct 31, 2025
New Member: Mid-Coast Region Redevelopment Authority (MRRA)
Sep 30, 2025
October Membership Filing. New Members: AE-ESS Holyoke; American Power & Gas of RI; and Burgess BioPower; Termination of the Participant Status of Hudson Energy Services
Aug 18, 2025
NEPOOL submits comments supporting ISO-NE’s 2025 Q2 Capital Projects Report
Aug 08, 2025
ISO-NE and NEPOOL file Conforming Tariff Changes to support implementation of the NECEC Transmission Line as an “Other Transmission Facility” and to support the operation of, and transmission service over, the NECEC Transmission Line
Jul 23, 2025
NEPOOL files 134th Agreement to replace “Fuels Industry Participant” with “Associate Non-Voting Participant”.
May 02, 2025
ISO-NE, PTO-AC and NEPOOL jointly file revisions to Section 48 and Schedules 22, 23, and 25 of Section II of the Tariff and Section III.13 of the Tariff to update certain dates relevant to the ISO’s transition to the Order 2023-required Cluster Study process. These are the ISO-NE-proposed changes unanimously supported by the Participants Committee at its May 1 meeting without the RENEW Amendment.
Apr 23, 2025
ISO-NE, NEPOOL and the PTO-AC file the second phase of improvements to the Economic Study process (“Phase 2 Changes”). The Phase 2 Changes: (1) separate System Efficiency Needs Assessments from reliability Needs Assessments;6 (2) establish a threshold for the issuance of a Request for Proposals (“RFP”) for System Efficiency Transmission Upgrades; (3) change the RFP process for System Efficiency Transmission Upgrades from the current two-phase RFP process to a single-phase RFP process; and (4) establish clearly defined metrics to evaluate System Efficiency Transmission Upgrade Proposals. The Phase 2 Changes were filed in two parts — changes to the ISO-NE Tariff (part 1) and changes to the TOA (part 2).
Dec 31, 2024
NEPOOL requests FERC’s acceptance of (i) the following Applicant’s membership in NEPOOL as of Jan 1, 2025: All Choice Energy NE LLC (Supplier Sector); Karbone Energy LLC (Supplier Sector); and The Metropolitan District (Publicly Owned Entity Sector); and (ii) the termination of the Participant status of: TrueLight Commodities, LLC (Supplier Sector) (Dec 1, 2024); Blueprint Power Technologies LLC [Related Person to BP Energy (Supplier Sector)] (Jan 1, 2025); and Sunrun Inc. (AR Sector, DG Sub-Sector) (Jan 1, 2025).
Nov 22, 2024
ISO-NE and NEPOOL jointly file ICR-Related Values and HQICCs for 2025/26 ARA3, 2026/27 ARA2; and 2027/28 ARA1
Nov 12, 2024
ISO-NE and NEPOOL file revisions to OATT Attachments C & Q to (i) conform Attachment C with the new requirements of Attachment Q and Order 881; and (ii) replace outdated references contained in Attachment C with currently applicable references.
Aug 30, 2024
New Members: Elyctra LLC and Halia Energy LLC; and Termination of Participant status: Town on Hanover, New Hampshire
Aug 27, 2024
NEPOOL and ISO-NE jointly file Tariff revisions to supplement the core DASI Rules, and address the impacts of the core DASI design on a number of secondary market-related processes; comment deadline Sep 15, 2024
Jul 31, 2024
NEPOOL and ISO-NE file 2nd RNA and PA changes; comment deadline Aug 21, 2024
Jul 30, 2024
New Member: Twig Redwood Inc.; and Termination of Participant status: MFT Energy US 1 LLC
Jul 01, 2024
NEPOOL submits comments supporting ISO-NE’s Jun 10, 2024 Order 2222 Further Compliance Filing (Addition of Meter Data Submission Deadline to Tariff)
Jun 28, 2024
New Members: Aurora Energy Research LLC and Enverus, Inc.; Termination of Participant status: KCE CT 10 LLC
Jun 25, 2024
NEPOOL files reply comments to ISO-NE’s initial Reactive Power NOPR comments
May 14, 2024
ISO-NE, NEPOOL and the PTO AC jointly submit, pursuant to Section 206 of the FPA, Tariff changes in response to Orders 2023 and 2023-A, including changes to Tariff Section I.2.2; Section II.48; Section II, Attachment K and Schedules 11, 22, and 23; and Section III.13.
May 14, 2024
NEPOOL files comments supporting ISO-NE’s 2024 Q1 Capital Projects Report
Apr 05, 2024
ISO-NE and NEPOOL jointly file revisions to delay New England’s FCA19 until Feb 2028, maximizing the opportunity for ISO-NE and regional stakeholders to fully design and implement
a prompt and seasonal capacity market framework, and to further refine the approach to capacity accreditation based on a resource’s Marginal Reliability Impact.
Mar 29, 2024
New Members: Eagle Creek Madison Hydro and Vineyard Offshore; Termination of Participant status: Power Supply Services and Green Choice Energy
Feb 29, 2024
NEPOOL requests FERC accept: (i) the following Applicants’ membership in NEPOOL: DRW Energy Trading; Innovo Markets; OW North America; and Trailstone Renewables; (ii) the termination of the Participant status of Transource New England; and (iii) the name changes of: Canal Marketing LLC (f/k/a Stonepeak Kestrel Energy Marketing LLC); and Excelsior Billerica, Bondsville, and Lexington (f/k/a Syncarpha Billerica, Bondsville, and Lexington); comment deadline Mar 21, 2024
Feb 14, 2024
NEPOOL submits comments supporting ISO-NE’s Jan 31 compliance filing
Dec 28, 2023
New Members: Bristol BESS, LLC; Dare US LLC; Eoch Energy LLC; Frankland Road Solar, LLC; and Phillips 66 Energy Trading LLC; Termination: Astral Energy LLC
Dec 14, 2023
ISO-NE and NEPOOL jointly file changes to the financial assurance requirements in the Financial Assurance Policy to reduce the risk of collateral shortfalls from defaulting Market Participants with Capacity Supply
Obligations that incur FCM pay-for-performance penalties
Nov 30, 2023
ISO-NE and NEPOOL jointly file ICR-Related Values and HQICCs for the 2024/25 ARA3, 2025/26 ARA2; and 2026/27 ARA1; comment deadline Dec 21, 2023
Nov 29, 2023
As directed in the Brookfield IEP Complaint Order, ISO-NE and NEPOOL submit revisions to the Tariff that make pumped storage resources participating as Electric Storage Facilities in the New England Markets eligible to participate in the Inventoried Energy Program.
Nov 27, 2023
ISO-NE and NEPOOL jointly file revisions to the FCM qualification rules for Distributed Energy Capacity Resources (DECR).
Nov 17, 2023
Nov 07, 2023
ISO-NE and NEPOOL file ICR-Related Values for the 2027-28 Capacity Comm. Period (FCA18)
Nov 03, 2023
ISO-NE and NEPOOL jointly file changes to delay FCA19, including its related pre and post-auction activities, for one calendar year. Proposed Tariff revisions also address the timeline for conducting subsequent auctions, the schedule for running FCA19’s ARAs, and adjustments to the FCA qualification rules for certain resources to prevent the delay from adversely impacting their FCM participation.
Nov 03, 2023
NEPOOL files comments supporting NESCOE’s 2024 Budget
Nov 02, 2023
ISO-NE and NEPOOL jointly file changes to eliminate the potential for upward mitigation of Energy Supply Offers
Oct 18, 2023
ISO-NE and NEPOOL, in response to Order 895, jointly file changes to the Information Policy to (1) permit ISO-NE to share credit-related information with other ISO/RTOs; (2) permit ISO-NE to use credit-related information received from other ISO/RTOs to the same extent and for the same purposes as ISO-NE is permitted under the Tariff with respect to its market participants, transmission customers, and applicants; and (3) require ISO-NE to keep such received credit-related information confidential in accordance with the
Tariff, in each case for the purpose of credit risk management and mitigation.
Sep 29, 2023
NEPOOL requests that the FERC accept (i) the following new members: KCE CT 10, LLC; KCE CT 11, LLC; and Sierra Club; and (ii) the termination of the Participant status of BP Energy Holding Company.
Aug 31, 2023
NEPOOL requests that the FERC accept: (i) the memberships of Phoenix Energy Group and 3Degrees Group; (ii) the termination of the Participant status of: Just Energy (U.S.) Corp., NRG Power Marketing, Norwalk Power, Somerset Power, and WP&G Holdings; and (iii) the name change of NRG Business Marketing, LLC (f/k/a Direct Energy Business Marketing.
Aug 16, 2023
NEPOOL submits comments supporting ISO-NE’s 2023 Q2 Capital Projects Report.
Jul 31, 2023
NEPOOL requests the addition of Clover Energy, LLC to the list of Participants
Jun 30, 2023
NEPOOL requests FERC’s acceptance of (i) the following Applicant’s membership in NEPOOL: Hecate Energy Albany 2 LLC [Related Person to Howard Wind and RoxWind (Supplier Sector)]; Erie Wind, LLC [Related Person to Brookfield Renewable Trading and Marketing (Supplier Sector)]; and SCEF1 FUEL CELL, LLC [Related Person to Bridgeport Fuel Cell and Derby Fuel Cell (AR Sector, RG Sub-Sector)]; (i) termination of the Participant status of: Concurrent LLC (Supplier Sector); and Brookfield Energy Marketing LP [Related Person to Brookfield (Supplier Sector)]; and (iii) the name change of: CPV Spruce Mountain Wind, LLC (f/k/a Spruce Mountain Wind, LLC).
Jun 28, 2023
ISO-NE and NEPOOL file changes to the Financial Assurance Policy (FAP) to allow ISO-NE to remove a bank from the List of Eligible Letter of Credit (LOC) Issuers if ISO-NE determines in its sole discretion that, despite satisfying the eligibility criteria, accepting a LOC from a bank on the list presents an unreasonable risk that the bank may fail to honor the terms of such LOC
May 30, 2023
NEPOOL submits comments supporting 60-day compliance changes
May 22, 2023
NEPOOL intervenes and files comments supporting ISO-NE 2023 Q1 Capital Projects Report
Feb 17, 2023
NEPOOL submits comments supporting 2022 Q4 Capital Projects Report
Jan 20, 2023
ISO-NE and NEPOOL file revisions amending Section III.13.7.5.4.5 of Market Rule 1 to clarify (1) the allocation of Pool-Planned Units’ (PPU) Capacity Transfer Rights (CTRs) for each Capacity Commitment Period, (2) PPU CTR self-supply designations, and (3) the settlement of any remaining PPU CTRs not designated as self-supply
Dec 30, 2022
NEPOOL requests that the FERC accept (i) the memberships of Just Energy Limited, Think Energy; (ii) the termination of the Participant status of Josco Energy MA, Starion Energy, and Rhode Island Bioenergy Facility; and (iii) the name changes of BP Energy Retail Company LLC (f/k/a EDF Energy Services, LLC), BP Energy Holding Company LLC (f/k/a BP Energy Retail LLC), and Rhode Island Bioenergy Facility, LLC (f/k/a formerly known as Rhode Island Bioenergy, LLC).
Dec 05, 2022
NEPOOL submits comments in response to ISO-NE’s Nov 22, 2022 Filing in this proceeding
Nov 09, 2022
New Member: Windham Energy Center, LLC (eff. Nov 10, 2022)
Nov 04, 2022
NEPOOL files comments supporting the 2023 NESCOE Budget
Oct 13, 2022
NEPOOL submits initial comments in response to Interconnection Reforms NOPR
Oct 12, 2022
ISO-NE and NEPOOL file changes to defer and modify the FCM Parameters Recalculation Schedule
Oct 11, 2022
ISO-NE and NEPOOL submit revisions to the Tariff to modify the schedule for the eighteenth Forward Capacity Auction (FCA18) only
Oct 07, 2022
NEPOOL submits comments on ISO/RTO Credit Information Sharing NOPR
Sep 27, 2022
NEPOOL submits comments supporting five-year pro forma budget
Aug 12, 2022
NEPOOL files initial comments
Jul 29, 2022
ISO-NE and NEPOOL jointly file tariff revisions to allow storage facilities incapable of
consuming electricity from the grid to participate in the New England Markets as Continuous
Storage Facilities.
Jun 30, 2022
NEPOOL requests that the FERC accept the termination of the Participant status of Liberty Power Holdings and the name change of Astral Infrastructure Holdings, LLC
Mar 31, 2022
NEPOOL requests FERC accept the memberships of: AMP Solar Holdings US, Octopus Energy and NRG Power Kiosk
Feb 23, 2022
NEPOOL intervenes and files comments supporting 2021 Q4 Report
Feb 11, 2022
NEPOOL and ISO-NE request the involuntary termination of the Participant status of Sunwave USA Holdings Inc.
Feb 02, 2022
ISO-NE and NEPOOL jointly file changes in response to Order 2222
Jan 31, 2022
NEPOOL requests that the FERC accept (i) the membership of Sam Mintz; (ii) the termination of the Participant status of the following 16 Participants: Farhad Aminpour; Dick Brooks, King Forest Industries; Michael Kuser; PNE Energy Supply; Connecticut Jet Power; Devon Power; Middletown Power; Montville Power; Ambit Northeast; Connecticut Gas & Electric; Energy Rewards; Everyday Energy; Massachusetts Gas and Electric; Public Power; and Viridian Energy; and (iii) Constellation Energy Generation LLC’s name change
Dec 28, 2021
ISO-NE and NEPOOL jointly file Tariff revisions to improve New England’s competitive transmission planning process in response to lessons learned from the implementation of Order 1000
Nov 19, 2021
FERC accepts (i) the memberships of CPV Valley, Generation Bridge Connecticut Holdings, Generation Bridge M&M Holdings, J.P. Morgan Ventures Energy Corporation, Oxford Energy Center, Naugatuck Avenue Storage, Norman Street ES, Westfield ESS; and (ii) the name change of Rhode Island Bioenergy Facility, LLC (f/k/a Orbit Energy Rhode Island, LLC)
Nov 05, 2021
NEPOOL files comments supporting NESCOE 2022 Budget Filing
Nov 01, 2021
NEPOOL submits comments supporting ISO-NE Budgets
Nov 01, 2021
NEPOOL submits comments supporting ISO-NE Q3 Capital Projects Report
Oct 22, 2021
ISO-NE and NEPOOL submit amendment to Jan 26, 2021 compliance filing to include in Schedules 20A-Common and 21-Common revised and new WEQ standards
Oct 12, 2021
NEPOOL submits initial comments in response to Transmission ANOPR
Sep 24, 2021
NEPOOL and ISO-NE file with the FERC the Waiver Agreement that temporarily waives the provisions of the Participants Agreement (related to the size of the ISO Board and the term length of one new Board member) that was required to seat the four-person slate of candidates for election to the ISO Board of Directors.
Aug 16, 2021
NEPOOL files comments supporting Q2 Report
Jul 13, 2021
NEPOOL files comments supporting the proposal filed by ISO-NE and the PTO AC to clarify that the calculation of Monthly Regional Network Load excludes load served by behind-the-meter (BTM) generation, which does not participate in the New England wholesale markets as a Generator Asset, as well as the portions of a Generator Asset utilized to net load at the same retail meter
Jun 30, 2021
NEPOOL requests that the FERC accept (i) the memberships of Gridmatic Isotria; InBalance, Inc. ; North East Offshore, LLC; and New England Power Generators Association, Inc.; (ii) the termination of Priogen Power; and (iii) WP&G’s name change
Jun 28, 2021
NEPOOL and ISO-NE file revisions to remove Market Rule 1 Appendix B (Imposition of Sanctions by the ISO)
May 28, 2021
NEPOOL requests that the FERC accept (i) the membership of Hydrloland and Vineyard Wind 1; (ii) the termination of Convergent Power; and (iii) Millennium Power Company’s name change
May 28, 2021
NEPOOL answers ISO-NE’s May 13 answer
May 21, 2021
NEPOOL and ISO-NE jointly file Tariff revisions to establish operational and meteorological data requirements for solar facilities and relocate and streamline already-existing data requirements for wind facilities
May 18, 2021
NEPOOL submits comments supporting ISO-NE’s 2021 Q1 Capital Projects Report filing
May 13, 2021
NEPOOL answers arguments opposing aspects of the NEPOOL Alternative (arguments raised by ISO-NE’s IMM, NEPGA, FirstLight, Calpine/Vistra, National Hydropower Assoc., EPSA)
Apr 30, 2021
NEPOOL requests that the FERC accept (i) the membership of Protor Energy and Voltus Inc.; and (ii) the termination of the Participant status of Great Bay Power Marketing
Apr 28, 2021
NEPOOL files answer to materials and statements of ISO-NE
Apr 20, 2021
NEPOOL answers ISO-NE’s answer and PJM’s comments on NEPOOL’s motion for protective order
Apr 20, 2021
NEPOOL submits limited comments (i) to provide a more fulsome report on the stakeholders’ consideration of ISO-NE’s proposed revised CONE/Net CONE/PPR
Values; (ii) to correct the record regarding the NEPOOL vote outcome; and (iii) to note its unanimous support for Tariff revisions, included in the Mar 30 filing, that provide additional flexibility for FCA16 De-List Bids
Apr 13, 2021
ISO-NE and NEPOOL file revisions to Sections III.A.18.1 and Exhibit 5 of Market Rule 1 (i) to list all the IMM minimum ethics standards directly in the Tariff and (ii) to no longer attach to the Tariff ISO-NE’s Code of Conduct
Apr 07, 2021
Mar 31, 2021
April Membership Filing. New Members: Ocean State BTM LLC and Transgrid Midwest LLC
Mar 05, 2021
ISO-NE and NEPOOL file changes to the ISO-NE/NYISO Coordination Agreement that move the
ISO-NE/NYISO List of Interconnection Facilities, including associated descriptions of the Interties
and common metering points, from Schedule A of the ISO-NE/NYISO Coordination Agreement to ISO-NE’s public website
Feb 26, 2021
New Member: Trafigura Trading; Terminations: Axon Energy and Springfield Power; Name
Change: Titan Gas, LLC d/b/a ClearSky Energy
Feb 16, 2021
NEPOOL files comments to be considered in the FERC’s evaluation of ISO-NE’s Jan 26 filing
Feb 09, 2021
NEPOOL files comments reflecting its unanimous support for ISO-NE’s proposed compliance changes
Jan 29, 2021
New Members: Axpo U.S.; Catalyst Power & Gas; Palm Energy; Madison ESS; Rumford ESS; Vineyard Reliability; West Medway II; and Richard Brooks. Terminations: EFI; Great American Power; Oasis Power; Praxair; Rubicon NYP ; and Verde Group. Name Change: Utility Services of Vermont LLC (f/k/a Utility Services, Inc.)
Jan 26, 2021
NEPOOL and ISO-NE file changes to incorporate by reference in Schedule 24 of the OATT the latest version (Version 003.2) of certain NAESB WEQ Standards
Jan 21, 2021
NEPOOL submits comments to provide the FERC a greater understanding of regional stakeholder consideration of the proposed CONE, Net CONE, and PPR values for FCA16
Jan 06, 2021
ISO-NE and NEPOOL jointly file revisions to FAP that (i) update FAP information disclosure requirements; (ii) update risk management disclosure requirements; and (iii) add a provision regarding prior uncured payment defaults and entry into the New England Markets.
Dec 31, 2020
NEPOOL and ISO-NE jointly file Tariff revisions to implement a new methodology for calculating the FCM Dynamic De-List Bid Threshold
Dec 29, 2020
New Members: Cassadaga Wind, Centrica Business Solutions Optimize, Pilot Power Group, and SmartestEnergy US; Termination: Wheelabrator Bridgeport
Dec 14, 2020
NEPOOL and ISO-NE jointly file changes to the the market rules relating to the qualification of Demand Capacity Resources composed of Energy Efficiency measures (EERs) in the Forward Capacity Market
Dec 07, 2020
ISO-NE and NEPOOL submit further Order 841 compliance changes in response to Aug 4, 2020 Order 841 Compliance Filing II Order
Nov 16, 2020
NEPOOL submits comments on Carbon Pricing in ISO/RTO Markets
Sep 30, 2020
NEPOOL submits supplemental comments on Gross Load Forecast Reconstitution Methodology Tariff Revisions
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