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Dive Brief:
- A memorandum of understanding between PacifiCorp subsidiary Rocky Mountain Power and Utah-based distributed energy solutions provider Torus could deliver 70 MW of commercial and industrial demand response capability to RMP’s Wattsmart Battery program within 12 to 18 months, Torus said on Feb. 7.
- Torus has already filled about one-third of the project’s expected capacity and is “in active permitting and approvals for the deployment of those assets today,” Torus founder and CEO Nate Walkingshaw said in an interview.
- The partnership “is a great example of Utah’s leadership in innovative energy solutions” as the state looks to double its power production capacity over the next 10 years while remaining a net energy exporter, Utah Gov. Spencer Cox, R, said last month.
Dive Insight:
The Wattsmart Battery program is “among the most advanced [virtual power plants] in the U.S. due to its degree of integration into the utility’s overall system operations and the wide array of use cases (grid services) of the battery aggregation,” the U.S. Department of Energy said last month in its updated Pathways to Commercial Liftoff: Virtual Power Plants report.
The program is already in heavy use, with more than 130 response events in 2024, primarily to manage late afternoon and evening loads, Walkingshaw said. Other energy management providers participate in its residential component, but Torus is the only vendor working with C&I customers, he added.
Under the MOU, Torus will deploy its hybrid flywheel battery energy storage systems behind the meter at commercial and industrial facilities across the Wattsmart program territory, which recently expanded from its Utah home base into Wyoming and parts of Idaho, Walkingshaw said. The company is focused on Utah but available to RMP customers in Wyoming and Idaho, a Torus spokesperson said.
Customers can immediately use the storage systems to reduce utility demand charges while allowing RMP to dispatch stored energy during demand response events that typically occur during less than 1% of hours each year, Walkingshaw said.
Wattsmart “lets them have their cake and eat it too,” he said.
Within the system, the Nova Spin flywheel provides near-instantaneous, short-duration discharge to improve customers’ power quality, facilitate black-start capabilities for onsite generation and provide inertial grid support during transmission outages due to wildfires or other events, Walkingshaw said. The Nova Pulse lithium-iron-phosphate battery provides backup power during unplanned outages and grid support during periods of peak demand, he added.
Nova Pulse batteries range in size from 270 kWh to 2.2 MWh and are expandable to 40 MWh, according to Torus’s website. The hybrid storage system as a whole lasts twice as long as chemical batteries alone thanks to Torus Spin’s ability to respond to surges in demand, which reduces wear on the battery component, Torus says.
The complete system comes with secure hardware and firmware developed in the United States, with 24/7 cybersecurity monitoring and threat detection, Torus said. Cybersecurity is a growing but still-underrated consideration for utilities and end users as distributed energy resources proliferate, Walkingshaw said.
“We are saying to [utilities], ‘Please deploy a modern stack of hardware and firmware that protects from nation-state actors,’” he said.