Order Approving IBR Ride-through Standards
FERC issues Order No. 909 approving proposed Reliability Standards PRC-024-4, PRC-029-1, and the definition of the term Ride-through. FERC directs NERC, within 12 months of the effective date of the order, to determine whether, and if so how, to account for (1) the equipment limitations of HVDC-connected IBRs with choppers and (2) the long-lead time between adopting IBR design specifications and placing the IBR in-service. Additionally, the order directs NERC to submit an informational filing 18 months after the conclusion of the exemption request period in proposed Reliability Standard PRC-029-1, Requirement R4 that assesses the reliability impact of the exemptions to the standard. Finally, the order directs NERC to modify PRC-029-1 to clarify acceptable types of evidence for legacy hardware equipment that prevent IBR from meeting the ride-through requirements in PRC-029-1.
RM25-3-000
Letter Order Approving Amendments to the NPCC Bylaws
FERC issues a letter order approving amendments to the NPCC bylaws.
RR25-2-000
Order Approving Reliability Standard CIP-015-1
FERC issues Order No. 907 approving Reliability Standard CIP-015-1 and directing further revisions.
RM24-7-000
Potential Enhancements to the Critical Infrastructure Protection Reliability Standards
FERC issues a Withdrawal of Notice of Inquiry and Termination of Rulemaking Proceeding regarding potential enhancements to the CIP Reliability Standards.
RM20-12-000
Order Approving Revisions to Appendix 4E of the NERC ROP
FERC issues an order approving revisions to Appendix 4E of NERC's Rules of Procedure. The order also directs a compliance filing within 120 days.
RR25-1-000
Letter Order Approving Regional Reliability Standard BAL-004-WECC-4
FERC issues a letter order approving Regional Reliability Standard BAL-004-WECC-4.
RD25-6-000
Notice Granting Extension of Time
FERC issues a letter order granting NERC's request for additional time for filing the Petition for Approval of EOP-012-3 from March 27, 2025 to April 14, 2025.
RD24-5-000; RD24-1-000
Letter Order Approving Reliability Standards BAL-007-1 and TOP-003-7
FERC issues a letter order approving Reliability Standards BAL-007-1 and TOP-003-7.
RD25-5-000
Letter Order Approving definition of Inverter-Based Resource (IBR), and approving Reliability Standards PRC-028-1, PRC-002-5, and PRC-030-1
FERC issues a letter order approving the definition of Inverter-Based Resource (IBR), and approving Reliability Standards PRC-028-1 and PRC-002-5 (disturbance monitoring and reporting requirements), and PRC-030-1 (unexpected inverter-based resource mitigation).
RD25-1-000; RD25-2-000; RD25-3-000
Letter Order Approving Reliability Standard TPL-008-1
FERC issues a letter order approving Reliability Standard TPL-008-1.
RD25-4-000
