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NuScale Power Achieves Standard Design Approval from NRC for 77 MW SMR

LCG, May 30, 2025--NuScale Power Corporation (NuScale), a leading provider of advanced small modular reactor (SMR) nuclear technology, yesterday announced that it has received design approval from the U.S. Nuclear Regulatory Commission (NRC) for its uprated 77 MW power modules. NuScale states that it remains the only SMR technology company with design approval from the NRC, and the company remains on track for deployment by 2030, with 50- and 77-MW SMR options.

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EIA Presents Analysis of California's Solar and Wind Power Curtailment Challenges

LCG, May 29, 2025--The U.S. Energy Information Administration (EIA) released an analysis yesterday showing that the California Independent System Operator (CAISO), the grid operator for most of the state, is increasing its curtailment of the rapidly growing solar- and wind-powered generation facilities in order to balance electricity supply and demand, which is necessary to maintain a stable electric system.

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Industry News

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.
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