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December 5, 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.
SPP
SPP: ‘High Likelihood’ to Meet Winter Demand
SPP said it expects as a “high likelihood” of meeting demand during the upcoming winter season and that it will be prepared in case of an unexpected event.
Northwest Power and Conservation Council
NWPCC Study Finds Market Availability Steady Across Different Scenarios
The buildout of new resources in the Western Interconnection over the next 20 years is “remarkably similar” across a variety of scenarios tested by NWPCC’s market availability study.
Shutterstock
Voltus, Mission:data Argue Data Access Issues Stymie Residential DR in PJM
Voltus and Mission:data continued to make their case that data access is preventing PJM from tapping into residential demand response, which is just a fraction of the market now.
Invenergy
Enviros Challenge MISO, SPP Queue Express Lanes
Environmental groups are further pressing their opposition to MISO's and SPP’s fast-track studies for primarily fossil fuel projects, challenging both at the D.C. Circuit in a pair of lawsuits.
Consumers Energy
DOE Issues 3rd Emergency Order to Keep Michigan Coal Plant Open
The U.S. Department of Energy has reupped a coal-fired power plant in Michigan for another 90-day operations period, preventing its planned retirement for a third time.
NERC
NERC Winter Reliability Assessment Finds Many Regions Facing Elevated Risk
Rising electricity demand is adding to seasonal reliability risks this winter as supply has not kept pace with consumption in many regions, NERC reported in its Winter Reliability Assessment.
AdminMonitor
ERCOT: New Ancillary Service Key to Resource Adequacy
ERCOT staff told Texas regulators they plan to file two urgent protocol changes with the Board of Directors in their latest push to design a new ancillary service that further strengthens the grid’s resource adequacy.
IESO
Citing Geopolitical Uncertainty, IESO Lowers Long-term Demand Forecast Slightly
The reference scenario in IESO’s 2026 Annual Planning Outlook indicates net annual energy demand growth of 65% by 2050, from just over 150 TWh in recent years to 250 TWh.
DOE
DOE Announces $1B Loan for Constellation’s Crane Energy Center
DOE awarded Constellation a $1 billion loan for its Crane Clean Energy Center project, which will cut financing costs for the nuclear unit restart.
Duke Energy Renewables
SPP’s ELCC Methodology Contested at Appeals Court
The Sierra Club and Natural Resources Defense Council filed a petition with an appeals court to toss two recent FERC orders that granted SPP’s request to modify provisions for clean energy resources’ capacity accreditation.

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