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Alliant Energy to Install More Wind Farms in Iowa

LCG, April 19, 2018--Alliant Energy's Iowa utility subsidiary, Interstate Power and Light Company (IPL), received approval to increase its wind expansion program from the Iowa Utilities Board (IUB). Through this expansion, combined with existing wind farms and market purchases, the company expects wind to provide approximately one-third of its total electric generating capacity in Iowa by the end of 2020.

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Wyoming Commission Approves Settlement Agreement for PacifiCorp Wind Expansion

LCG, April 18, 2018--The The Wyoming Public Service Commission last Thursday approved a settlement agreement between PacifiCorp, the Wyoming Industrial Energy Consumers, the Wyoming Office of Consumer Advocate and the Interwest Energy Alliance on the new wind and transmission portions of PacifiCorp's Energy Vision 2020 proposal. The commission also approved the Certificates of Public Convenience and Necessity (CPCNs) that are needed for construction of the Wyoming-based wind and transmission projects. Pending approval from other state commissions, acquisition of rights of way, and receipt of permits, construction on the wind and transmission projects is expected to start in 2019.

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Press Release

Analysis of Summer Resource Adequacy in ERCOT


LCG, July 28, 2016--LCG Consulting releases its analysis of resource adequacy in Texas for high stress conditions in summer 2016.

Every year, the Electric Reliability Council of Texas (ERCOT) publishes reports on Seasonal Assessment of Resource Adequacy, or SARA. In it, ERCOT identifies scenarios to determine whether the Texas system can meet demand under a variety of challenging conditions. LCG has modeled these cases and offers an in-depth exploration into what happens with prices, congestion, and generation under the cases ERCOT presents in the 2016 summer assessment.

Using the advanced UPLAN-NPM modeling system, LCG extends ERCOT’s snapshot report of the summer season to delve more fully into system challenges and outcomes associated with such stress cases, including ramping constraints, Operating Reserve Demand Curve (ORDC) outcomes, pricing impacts, and unit commitment requirements.

LCG’s study models dispatch in the ERCOT region at five-minute intervals, instead of the more common hourly simulation. Modeling smaller slices more accurately captures the operation of the ERCOT system, including the sub-hourly ramping constraints of thermal units, which is particularly important under the SARA report stress cases.

The report relies on LCG’s UPLAN sub-hourly modeling capability as well as robust knowledge of all aspects of electricity transmission and generation in Texas, and decades of electricity modeling experience in the state.

About LCG Consulting:
Silicon Valley-based LCG Consulting has been modeling electricity for more than 30 years. In that time, energy market participants and research institutions across the United States and internationally have relied on our models for every type of application, from electricity trading, plant siting, asset valuation, and testimony support.

For more information about this report or any services offered by LCG, or for more details about the UPLAN Network Power Model, please contact us at julie.chien@energyonline.com or 650-962-9670x110.





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