Midcontinent Independent System Operator news as it lands — grid, market, and regulatory coverage scoped to MISO, each story summarized for what it changes, and open to the agent.
Latest story discovered Oct 12, 2026, 9:45 AMGET /api/v1/wire →
AI summaryVoltus raises 225 million in Series D to build a 20 GW demand flexibility portfolio targeting grid operators, utilities and large DER owners across U.S. wholesale markets; plans to scale to 20 GW by 2030.
AI summaryMuscatine breaks ground on Muscatine Solar One, a 24 MW utility-scale solar farm on 250 acres, with construction underway and online target late 2027; project involves Muscatine Power and Water and its partners, aiming to diversify generation and add ~53 GWh/year to the grid.
AI summaryMISO selects four energy orgs to develop a 765-kV Midwest backbone (STIW and WIIL projects) with construction slated to start under Long Range Transmission Planning Tranche 2.1; service targeted for 2034; cost estimates sub-$1B per project.
AI summaryATXI reached a four-year lease with the NEMO Fair Association to establish a laydown yard for storage of materials for the Northern Missouri Grid Transformation Program; approximately 35 acres of upgraded, level ground will be provided after project completion, with construction ongoing and expected to finish by year-end 2026.
AI summaryHallador Energy and Duke Energy Indiana sign a six-year PPA for 200 MW at Merom Generating Station and a separate Zonal Resource Credits contract totaling about $271 million.
AI summaryFERC mixed reactions to MISO's one-time amnesty plan for the 2022 queue cycle and a cap on restudies, indicating potential changes to project interconnection processing and planning.
AI summaryA 3.1 MWh grid battery with passive sodium-ion design energized in eastern Wisconsin; claims first US grid deployment for sodium-ion storage on the MISO grid, with manufacturing and upcoming US factory plans to scale.
AI summaryLatitude Media discusses bipartisan permitting bill shifting transmission planning authority and potential reforms to grid planning, with implications for utilities and regulatory oversight.
AI summaryMISO proposes accelerated interconnection queue reforms to shorten the Definitive Planning Phase and reduce restudies, with changes including earlier project exits without penalties and a higher cost-increase threshold for penalty-free withdrawals; the proposal seeks FERC approval by Oct 19.
AI summaryMISO proposes a fast-track Large Load Addition Resource Study (LARS) process to review large loads (>200 MW) and their associated generation within the same local resource zone, aiming for FERC approval by Dec. 2 and first study period early next year; the process would run parallel with interconnection studies and require a three-year pairing window for load and generation.
AI summaryMISO reported two grid emergencies in September 2026 due to transmission constraints and binding constraints, with neighboring-system transmission loading relief instructions contributing to the events.
AI summaryMISO shifts PRMR allocation methodology, moving to a forecasting approach for resource adequacy obligations rather than settled-load-based allocation.
AI summaryIndiana Michigan Power extends public comment period for the Lulu-Sorenson Transmission Improvements project to Nov. 13, seeking route and project input.
AI summaryWisconsin project WISE transmission line moves into routing/siting phase with MISO-initiated development and public engagement; Tallies multiple counties with a 2033 in-service target.
AI summaryCompetitive bidding could reduce upfront costs for ERCOT STEP transmission projects; a study claims bidding out high-voltage lines in Texas could lower construction costs by $3–9B and total lifetime costs by $7–22B.
AI summaryAmeren Missouri filed its 2026 Integrated Resource Plan with Missouri regulators, outlining a 20-year program including 10.6 GW of new natural gas capacity alongside substantial solar, wind, storage, and nuclear plans; the plan awaits regulatory approvals.
AI summaryGlobal data-center power demand is forecast to reach 161 GW in 2026, up from 122.9 GW in 2025, with AI driving growth and a projected gap between demand and grid capacity, especially in PJM, ERCOT, and MISO.
AI summaryEmergency DOE orders require Indiana coal plants at R.M. Schahfer and F.B. Culley to stay available through Dec 18, 2026 to support regional reliability; applies to NIPSCO and CenterPoint with MISO involvement.
AI summaryNRC probes tilt of fuel assembly at Palisades Nuclear Plant; pause in fuel loading and ongoing federal investigation; Holtec seeks license amendment for retrieval; impacts restart and regulatory oversight.
AI summaryDOE SPARK initiative awards $5.25B for 31 grid-improvement projects across 26 states, reconductoring and advanced transmission upgrades to add over 23 GW capacity and improve reliability, with funding split between DOE and recipient cost-share.