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.

FERC accepted a second compliance filing from SPP outlining its process for determining its planning reserve margin with an order that found the RTO’s response met the commission’s directives.

SPP directors and regulators have approved the grid operator’s first winter planning reserve margin, endorsing a base PRM that is 3 percentage points higher than many of its utilities wanted.

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.

SPP’s Markets and Operations Policy Committee endorsed recommended revision requests from two stakeholder groups as part of the RTO’s effort to strengthen resource adequacy.

SPP’s REAL Team approved base planning reserve margins and a sufficiency valuation curve, codifying months of work.

SPP’s resource adequacy stakeholder group has moved several policies that indicate the team’s work is “coming home” after months of presentations and discussions.

FERC found SPP’s tariff revisions laying out how it determines its planning reserve margin methodology only partly met the commission’s order on rehearing and directed an additional compliance filing.

SPP CEO Barbara Sugg warned the RTO’s board and stakeholders that the grid operator faces new and stronger headwinds, even as it met its corporate goals’ first-quarter milestones.

SPP and its stakeholders appear to be nearing consensus on establishing separate planning reserve margins for the summer and winter seasons and setting up a fuel assurance mechanism.