January 19, 2025

Resource Adequacy

Resource adequacy is the ability of electric grid operators to supply enough electricity at the right locations, using current capacity and reserves, to meet demand. It is expressed as the probability of an outage due to insufficient capacity.
Rehearing Denied over MISO RA Construct
FERC affirmed its 2018 ruling approving MISO’s current resource adequacy construct, rejecting multiple rehearing requests from critics of the decision.
NEPOOL Reliability Committee Briefs; March 17, 2020
At the NEPOOL Reliability Committee, stakeholders pushed back on ISO-NE’s draft assumptions on improving system fuel security.
Study: Retail Design Key to Escaping Capacity Markets
Retail-choice states wanting to reduce their reliance on RTO capacity markets need to improve how their retail markets handle resource procurement.
NEPOOL Markets Committee Briefs: March 10-11, 2020
ISO-NE is wrapping up its Energy Security Improvements initiative ahead of a FERC deadline, stakeholders learned during a NEPOOL Markets Committee meeting.
FERC Rejects ISO-NE Fuel Security Tariff Revisions
FERC rejected ISO-NE Tariff revisions to clarify that resources retained for fuel security reasons will not be retained for other reasons once the fuel security retention period ends.
MISO Foresees ‘Typical’ Spring
MISO predicts energy usage this spring will peak at 100 GW in May, with about 134 GW of total capacity available.
MISO Prepares Deliverability, LMR Accreditation Filings
MISO is preparing to make two resource adequacy filings with FERC aimed at making its capacity resources more readily available.
ERCOT Sees Summer Repeat: Record Peak, Tight Reserves
ERCOT's first seasonal assessment of resource adequacy for the summer foresees a repeat of 2019 but with additional capacity to help meet demand.
FERC Rejects MISO Expansion of Market Mitigation
FERC rejected MISO’s bid to expand its Independent Market Monitor’s physical withholding mitigation to include non-capacity resources.
January Proves No Trouble for MISO
A mild winter across the Midwest footprint made for an easy January for MISO operators, stakeholders heard at the Reliability Subcommittee meeting.

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