sloped demand curve
FERC’s resource adequacy technical conference zoomed out on the second day, June 5, with several panels examining ISO-NE, MISO and NYISO.
Stakeholders continue to ask MISO to crunch hypothetical auction clearing prices absent the RTO’s new sloped demand curve that sent prices past $660/MW-day for summer.
MISO cautioned it’s likely in for heat waves and drought this summer with a slight chance it navigates a 130-GW peak in July.
MISO will waste no time in 2025 trying to blunt the threat of a shortage that could arrive in the summer months by encouraging new generation and enacting further resource adequacy measures.
FERC was not persuaded by environmental nonprofits, utilities nor Mississippi regulators to order MISO to rework the sloped demand curve it’s been cleared to use in the spring capacity auction.
Load-serving entities that decide against participating in MISO’s capacity auction must secure anywhere from 1.5% to 4.2% beyond their reserve margin requirements in the 2025/26 planning year.
The Sierra Club, Natural Resources Defense Council and the Sustainable FERC Project are seeking a rehearing of MISO’s sloped demand curve in its capacity auction.
MISO’s Independent Market Monitor debuted six new market recommendations this year as part of his annual State of the Market report.
As it gears up to run its first auctions using sloped demand curves, MISO said prices and procurement would have risen had it used them in this year’s auctions.
NYISO stakeholders are divided over consultants’ proposal to use a two-hour battery as the peaking plant in the ISO’s capacity market demand curve, as part of its quadrennial demand curve reset for 2025-2029.
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