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News
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LCG, April 9, 2026--Vault 44.01 Ltd. (Vault) announced today that the U.S. Environmental Protection Agency (EPA) Region 5 has issued a final Underground Injection Control (UIC) Class VI permit for the One Carbon Partnership CCS project (the "OCP Project") near Union City, Indiana. The One Carbon Partnership is a joint venture between Cardinal Ethanol and Vault.
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LCG, April 2, 2026--Southwest Power Pool (SPP) today announced that the expansion of its service territory into the Western Interconnection has been a success. The milestone makes SPP the first regional transmission organization (RTO) with services spanning the Eastern and Western Interconnections. Its member organizations, which cover all or part of 17 states, can now benefit from a more operationally and geographically diverse integrated system.
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Industry News
Hydrostor Announces Offtake Agreement with California Community Power for the Willow Rock Energy Storage Center
LCG, February 12, 2026--Hydrostor today announced that the Willow Rock Energy Storage Center has signed a 50 MW offtake agreement with California Community Power (CC Power) on behalf of six of its community choice aggregator members: CleanPowerSF, Peninsula Clean Energy, Redwood Coast Energy Authority, San Jose Clean Energy, Silicon Valley Clean Energy Authority and Valley Clean Energy Authority.
The Willow Rock Energy Storage Center project, located in Kern County, California, is designed to be a 500 MW / 4,000 MWh advanced compressed air energy storage (A-CAES) facility that can store energy (compressed air in an underground cavern) for eight hours of continuous discharge to the grid. The long-duration energy storage (LDES) system is designed to provide reliable capacity to complement intermittent power generation from solar and wind resources.
Hydrostor estimates that, from breaking ground to commissioning, building Willow Rock will take five years of construction and a $1.5 billion investment. The project is expected to commence operations in 2030.
CC Power’s General Manager stated, "Hydrostor’s Willow Rock project brings much-needed grid benefits to California by providing reliable long-duration energy storage capacity using domestic content, off-the-shelf turbomachinery, and only air and water to store energy. CC Power strives to advance California’s energy goals by contracting with novel, high-potential technologies and is excited to partner with Hydrostor on this innovative energy storage solution that improves reliability and diversifies California’s grid while supporting local employment and investment."
Hydrostor's President said, "We’re pleased to have signed this agreement with CC Power on behalf of its members, whose forward-thinking procurement activities are leading the way to ensure a future-proof and resilient grid, one that is underpinned by cost-effective and reliable long duration energy storage. This agreement marks an important milestone for Hydrostor as we continue scaling advanced long-duration storage in key markets across the United States, Australia, and Canada, all of which are anticipating growing electricity demand, including from AI and data centers."
Hydrostor’s Chief Commercial Officer said, "Through this agreement with CC Power, we’re demonstrating how A-CAES can be deployed at meaningful scale to meet emerging reliability needs while offering a cost-competitive, infrastructure-ready solution for utilities navigating rapid load growth. Willow Rock is a strong example of how our commercial strategy translates into real projects delivering significant value for customers and communities."
The Willow Rock project received its California Energy Commission (CEC) permit last December, its franchise agreement from the Kern County Board of Supervisors earlier the same month, plus a conditional letter of support from the Kern County Board of Supervisors in April of 2025.
The Willow Rock Energy Storage Center is Hydrostor’s first utility-scale project being built in the U.S.
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UPLAN-NPM
The Locational Marginal Price Model (LMP) Network Power Model
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UPLAN-ACE
Day Ahead and Real Time Market Simulation
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UPLAN-G
The Gas Procurement and Competitive Analysis System
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PLATO
Database of Plants, Loads, Assets, Transmission...
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