Duke Energy to invest US$500 million in battery storage in Carolinas over 15 years

By Conor Ryan
October 11, 2018
LinkedIn
Twitter
Reddit
Facebook
Email
In total, the $500 million in projects is equal to around 300MW of capacity. Image: Duke Energy

As part of Duke Energy’s efforts to advance battery storage technology within the Carolinas, the company announced US$500 million in projects over the next 15 years within both US states.

Rob Caldwell, president, Duke Energy Renewables and Distributed Energy Technology, said: “Duke Energy is at the forefront of battery energy storage, and our investment could increase as we identify projects that deliver benefits to our customers. Utility-owned and operated projects in North Carolina and South Carolina will include a variety of system benefits that will help improve reliability for our customers and provide significant energy grid support for the region.”

In total, the $500 million in projects is equal to around 300MW of capacity. When adding up battery storage from all utilities, North Carolina has only about 15MW of battery storage capacity in operation, with an even smaller total in South Carolina.

Duke Energy filed for a Certificate of Public Convenience and Necessity with the North Carolina Utilities Commission for a PV project in the Hot Springs community of Madison County as part of a microgrid project that will feature a 2MW PV facility and a 4MW lithium-based battery storage facility.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The Hot Springs project is part Duke Energy’s Western Carolinas Modernization Project, which will see the company close a 50-year-old coal-fired power plant in Asheville in 2019, with the site set to be replaced by a cleaner natural gas-fired plant and distributed energy resources like solar power and battery storage.

24 March 2026
Dallas, Texas
The Energy Storage Summit USA is the only place where you are guaranteed to meet all the most important investors, developers, IPPs, RTOs and ISOs, policymakers, utilities, energy buyers, service providers, consultancies and technology providers in one room, to ensure that your deals get done as efficiently as possible. Book your ticket today to join us in 2026!

Read Next

December 17, 2025
In an upcoming conversation with Energy-Storage.news Premium and Optimisation platform provider Ascend Analytics, CEO Dr. Gary Dorris PhD, discusses the ‘roller coaster’ revenues of the Electric Reliability Council of Texas (ERCOT) market.
December 17, 2025
According to the Q4 2025 US Energy Storage Monitor from Wood Mackenzie Power & Renewables and the American Clean Power Association (ACP), 2025 energy storage installations surpassed 2024 capacity.
December 16, 2025
In this edition of the Energy-Storage.news US news roundup, EticaAG partners with Shell on battery immersion tech, Pacific Northwest National Laboratory begins utility-scale battery testing, and ON.Energy announces a transformer supply agreement.
December 16, 2025
 Utility Georgia Power has reached an agreement with the Public Interest Advocacy (PIA) staff of the Georgia Public Service Commission (PSC), that, if approved, will help lower energy costs and meet electricity demand in the state.
Premium
December 16, 2025
Calibrant’s BESS for a new data centre in Oregon, US, was hailed as the first of its kind, but what are the details beyond the headline? We caught up with Calibrant’s CCO to discuss the practical, commercial and technical specifics of the project.