March 25, 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.
PJM
PJM MRC/MC Briefs: March 19, 2025
The Markets and Reliability Committee endorsed PJM's recommended installed reserve margin and forecast pool requirement values for the 2026/27 Base Residual Auction.
SPP
SPP Study: $88B to $263B in Generation Needed by 2050
A study of SPP’s future energy and resource needs has found the grid operator will have to rely on thermal generation to maintain grid reliability into midcentury, but it will come at a cost.
NYISO
Winter Fuel Constraints Concerning for NYISO
While NYISO operated reliably last winter, the season provided “continued examples of limited flexibility on the gas system,” ISO staff told the Operating Committee.
GridLiance
FERC Accepts SPP Revisions to TCR Market, Maintains Show Cause
FERC accepted SPP’s proposed tariff revisions to incorporate a mark-to-auction collateral requirement for its transmission congestion rights market but did not terminate a show-cause proceeding.
© RTO Insider
PJM Stakeholders Endorse Proposals to Rework ELCC Accreditation
PJM’s Markets and Reliability Committee endorsed two proposals to revise the RTO’s ELCC formula to add two new generation categories and limit the penalties resources face if their accreditation declines between auctions.
FERC
FERC State of the Markets Report Shows Load Growth, Lower Prices
FERC's State of the Markets report showed lower wholesale energy prices but growing demand and higher capacity prices that signal a need to meet the coming load.
© RTO Insider
Overheard at CERAWeek 2025
CERAWeek 2025 by S&P Global examined the changing energy landscape through 14 themes, from policy and regulation to climate and sustainability, but none seemed to draw more focus than the rapid expansion of AI and is potential transformative effects.
© RTO Insider
FERC to Rule on SPP’s RA Requirement for Winter
FERC is expected to rule on SPP’s proposed tariff revisions adding a winter season resource adequacy requirement and several other issues related to the grid operator.
Matthew T. Rader, CC BY-SA 4.0, via Wikimedia Commons
Experts Urge Texas Policymakers to Go Big with 765-kV Transmission
ERCOT already operates a power system as large as those in several European countries, but demand growth is expected to bring it up to the level of PJM and MISO, which has the industry considering building a new system of 765-kV lines to transmit power around Texas. 
© RTO Insider
MISO Members Grapple with 54 GW in Incomplete Gen, Predict Storage Expansion
MISO members haven’t landed on easy answers in getting the approximately 54 GW of unfinished generation that has cleared the interconnection queue online sooner.

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