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The Day-Ahead Ancillary Services market strengthens reliability by ensuring resources are available when the grid is stressed.
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Understanding how much electricity solar resources can produce is an important part of power grid operations and planning.
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Variables like the weather, consumer demand, and fuel costs mean the price of wholesale electricity is in constant flux.
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ISO-NE uses sophisticated software to identify the best way to continuously satisfy electricity demand at the lowest cost.
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The update notes progress on anchor projects, which are the ISO’s highest-priority initiatives.
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Auctions will shift to a “prompt” timeline in 2028, and the process for exiting the market will change.
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Accreditation involves determining a resource’s anticipated reliability contributions during periods of system stress.
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Chris Geissler, director of Economic Analysis, explains how the ISO measures resources’ contribution to grid reliability.
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The ISO has observed reliability and market improvements since the 2025 launch.
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In this ISO Minute, Chris Geissler explains the changes ahead for the region’s capacity market.
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