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Public Service Company of Oklahoma Completes Acquisition of Green Country Power Plant

LCG, July 3, 2025--American Electric Power (AEP) announced today that on June 30, the 795-MW Green Country Power Plant officially became part of the generation portfolio of Public Service Company of Oklahoma (PSO), a unit of AEP.

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Alliant Energy Submits Plans to Iowa Utilities Commission for the Addition of 1,000 MW of Wind Capacity

LCG, July 2, 2025--Alliant Energy today announced plans to add up to 1,000 MW of wind energy generating capacity in Iowa to meet demand and ensure reliable, affordable energy for its customers. The plans are included in a filing with the Iowa Utilities Commission (IUC), and the company anticipates a decision from the IUC in the first quarter of 2026.

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Industry News

Deterrents to Midwest Manipulation Get Conditional Approval

LCG, Mar 17, 2003--A system created by the Midwest Independent System Operator Inc. to reduce the likelihood of market manipulation has been given conditional approval by the Federal Energy Regulatory Commission.

The proposal would allow adjustment of suppliers' bids downward if they exceeded threshhold levels and raised the market clearing price by the lower of 200% or $100 per megawatt-hour. Local areas would have differing threshhold levels based on the level of congestion and excess of supply relative to demand.

In addition, the Midwest ISO would fine generators if they did not bid into the real-time market and meet minimum operating levels, such that market clearing prices were affected. FERC did not allow a proposal to fine generators for not bidding into the day-ahead market, as there is no mechanism to compensate generators for providing on-line capacity.

The Midwest ISO would not decide on any penalties it imposed. Rather, they would be determined by an independent market monitor. The Midwest ISO and PJM (Pennsylvania-Jersey-Maryland Interconnection) are continuing to develop compatible sets of rules to allow integration of their markets.
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