January 24, 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.
MISO Resource Adequacy Subcommittee Briefs
Stakeholders will vote on whether it’s worth debating the cost allocation for holders of firm transmission service reservations of more than 1,000 MW.
MISO May Bar Units on Extended Outage from Capacity Auctions
MISO is considering prohibiting resources on extended outages from participating in capacity auctions or other changes to capture the risk of such outages.
OMS-MISO Survey Moves Ahead with New Calculation
MISO and OMS began distributing their annual joint resource adequacy survey with a new calculation method some stakeholders believe is overly conservative.
CAISO to Create New TAC Area for Water District
CAISO is seeking to create a new transmission access charge area for the Metropolitan Water District of Southern California.
PJM: Increased Gas Won’t Hurt Reliability, Too Much Solar Will
PJM can maintain adequate reliability with a generation fleet almost entirely composed of natural gas units, according to a study the RTO released.
Anemic Loads, Plentiful DR Boost MISO Summer Outlook
MISO expects a 19.2% planning reserve margin this summer, well above its 15.8% requirement, and a percentage point above its projection last year.
CAISO Preparing Responses to Spring Oversupply
CAISO is preparing for spring oversupply, when unusually high levels of hydro output are expected to compound the impact of growing solar penetration.
PJM Planning Transmission Expansion Advisory Committee Briefs
General assumptions regarding winter operations will need to be replaced with actual data to improve PJM’s winter resource adequacy analysis.
MISO Resource Adequacy Subcommittee Briefs
Load forecast data for the MISO 2017/18 PRA shows that all local resource zones have enough capacity to meet their clearing requirements.
Differences Persist over OMS-MISO Survey Improvements
MISO will roll some capacity sitting in the definitive planning phase of its interconnection queue into the annual OMS-MISO resource adequacy survey.

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