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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.
NYISO
NYISO Dogged by Uncertainty in Comprehensive Reliability Plan
NYISO’s draft 2025-2034 Comprehensive Reliability Plan shows a wide range of possible scenarios for resource adequacy in New York, with the most negative outlook showing a deficit of up to 10 GW by 2034.
ERCOT
ERCOT Board Approves AS Procurement for 2026
ERCOT’s Board of Directors approved staff’s recommended methodologies for acquiring minimum ancillary service requirements in 2026, despite concerns over conservative operations and target procurement levels.
Consumers Energy
Wright: DOE Working to Stop More Coal Plants from Retiring
U.S. Energy Secretary Chris Wright said his department is working with utilities around the country to keep more coal plants slated for retirement open to help meet rising demand from data centers and other new large loads.
CAISO
CAISO DMM Concerned About ‘StubHub’ Marketplace in RA Proposal
CAISO’s Market Monitor cautioned that a new resource adequacy proposal could lead to strategic gaming in the ISO’s market when capacity supplies are tight on the grid.
Shutterstock
Federal Energy Policy News Roundup: House Bills and DOE Returns $13B
Democrats introduced a FERC-heavy bill to control electricity costs, House Energy & Commerce Committee Republicans tout bills passed out of committee, DOE returns $13 billion and some details from the Dallas Fed survey.
Corre Energy/Long Duration Energy Storage Council
IESO Ups Capacity Target for Long Lead-Time Resources

IESO has increased the capacity target for its planned solicitation for long lead-time resources, even as it acknowledges questions about the need for the procurement.

Yes Energy
Stakeholder Forum: Surplus Interconnection Can Maximize Capacity in ISO-NE
In New England, rules governing how new resources connect to the regional grid limit full use of the system’s potential. Precious “surplus” capacity can and should be leveraged to interconnect new, low-cost clean energy technologies to deliver more reliable, affordable power, says Alex Lawton.
Shutterstock
Speculative Data Centers Highlight Need for Effective Forecasting, Experts Say
Utilities face significant forecasting risks from large loads, prompting the industry to develop various strategies to eliminate speculative projects, experts said during a Western Interstate Energy Board webinar.
Entergy Arkansas
Entergy Uses Ark. Energy Emergency Laws to Justify Gas Plant Plans

Entergy Arkansas says a recently enacted Arkansas law strengthens the case for its plan to build a new gas-fired plant, a proposal that has drawn criticism from the state’s attorney general and regulatory staff.

Potomac Economics
NYISO Monitor Report Highlights Generator Outages During Heat Wave
As NYISO continues its Capacity Market Structure Review, the Market Monitoring Unit used its second-quarter State of the Market report to highlight potential issues with how the ISO forecasts resource availability.

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