March 14, 2025

Midcontinent Independent System Operator (MISO)

MISO, SPP Respond to Monitors’ Seams Studies
MISO’s and SPP’s state regulators gave the RTOs’ staffs an opportunity to respond to their monitors’ suggestions for improving interregional coordination.
MISO, SPP to Conduct Targeted Transmission Study
MISO and SPP announced a yearlong transmission study to identify projects with “comprehensive, cost-effective and efficient upgrades.”
MISO Market Subcommittee Briefs: Sept. 10, 2020
MISO expects adequate resources for the fall, though planned generator outages are expected to be higher this year.
MISO Keeps Advisories in Effect a Week After Laura
MISO staff continue to keep advisories in effect and compile data on the emergency and subsequent rolling blackouts caused by Hurricane Laura.
Sustainable FERC Project Hones on Nixed MISO Renewables
The Sustainable FERC Project has released an interactive map of MISO’s interconnection queue, highlighting many renewable gigawatts the footprint has lost out on.
MISO, SPP Regulators Ponder Monitors’ Recommendations
MISO’s and SPP’s market monitors presented their last report to state regulators working to improve the RTOs’ interregional coordination.
MISO Enacts Rolling Blackouts in Laura Aftermath
Hurricane Laura’s lashing of south Louisiana and southeast Texas led MISO to implement last-resort rolling power outages.
MISO in Final Stretch of $4B MTEP 20
MISO is putting the final touches on its most expensive annual transmission investment package after a final round of planning meetings.
LS Power Again Seeks MISO Cost Allocation Change
Transmission developer LS Power made a three-pronged attack on MISO’s cost-allocation structure with a trio of FERC filings.
FERC Orders Tech Conference on MISO-SPP Congestion
FERC ordered a technical conference to investigate overlapping congestion charges imposed on pseudo-tie transactions between MISO and SPP.

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