Duke Energy plans to invest $500 million in battery storage in the Carolinas over the next 15 years.
In its recent Integrated Resource Plan, Duke Energy outlined plans to deploy roughly 300 MW of battery storage capacity in the Carolinas. Including battery storage from all utilities, North Carolina currently has about 15 MW of battery storage capacity in operation, and there is far less in South Carolina, according to Duke Energy.
“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,” states Rob Caldwell, president of Duke Energy Renewables and Distributed Energy Technology. “Utility-owned/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.”
As the grid operator, Duke Energy says it can maximize the versatility of storage beyond storing and dispatching of energy to include other customer and system benefits, such as system balancing and deferral of traditional grid upgrades.
This week, the company also filed for a Certificate of Public Convenience and Necessity with the North Carolina Utilities Commission for a solar facility in the Hot Springs community of Madison County as part of a microgrid project.
The Hot Springs project will consist of a 2 MW AC solar facility and a 4 MW lithium-based battery storage facility. The microgrid is expected to provide a safe, cost-effective and reliable grid solution serving the Hot Springs area and provide energy and grid support to all customers. The project will defer ongoing maintenance of an existing distribution power line that serves the remote town.