Duke Energy (DUK) Expands Battery Storage in Carolinas to Enhance Reliability and Sustainability

Duke Energy Expands Energy Storage Capabilities in the Carolinas

Duke Energy announces the successful launch of a 50-megawatt (MW) battery energy storage system (BESS) at the former Allen coal plant on Lake Wylie, North Carolina. This initiative is part of the company's broader strategy to modernize energy infrastructure across the Carolinas. The project is completed ahead of schedule and under budget, costing approximately $100 million. The battery storage system began serving customers in November 2025, with final testing wrapping up this month. Duke Energy's commitment to enhancing energy reliability and efficiency is evident as it plans to construct a larger 167-MW battery system at the same site, set to commence in May. This new installation will repurpose land previously used for the coal plant's emissions control system, showcasing the company's focus on sustainability and innovation.

Federal investment tax credits significantly bolster this initiative, as both battery systems are lithium-ion based and qualify for a 40% cost recovery for customers, with an additional 10% available for projects that reinvest in energy communities. Kendal Bowman, Duke Energy's North Carolina president, emphasizes the strategic importance of repurposing existing energy infrastructure. By leveraging federal funding, the company aims to reduce fuel costs while addressing the increasing energy demands projected for the region. Duke Energy's 2025 Carolinas Resource Plan anticipates adding a remarkable 6,550 MW of battery storage by 2035, which is sufficient to power over 5 million homes during peak periods. This ambitious plan reflects the company's commitment to maintaining a diverse energy mix, including solar, storage, nuclear, and natural gas resources to meet the anticipated demand growth over the next 15 years.

The expansion of battery storage capabilities aligns with Duke Energy's mission to support economic growth and environmental sustainability in the Carolinas. As the energy landscape evolves, the company remains dedicated to enhancing its infrastructure to meet rising electricity demand, which is expected to grow at eight times the previous rate. By investing in advanced energy storage solutions, Duke Energy not only helps stabilize the grid but also strengthens its legacy in the region, ensuring reliable and affordable energy for its customers across North and South Carolina.

In a separate development, Duke Energy Florida announces significant reductions in monthly bills for residential customers starting February 2026. Customers can expect to see an approximate decrease of $33 per 1,000 kilowatt-hours (kWh) due to the removal of the storm cost recovery charge. This charge was related to the company's $1.1 billion response to recent hurricanes, and its early recovery provides much-needed financial relief amid rising living costs. The company also highlights ongoing efficiency improvements at its natural gas plants, resulting in $340 million in fuel savings, which translates to lower monthly bills for customers.

Duke Energy Florida's state president, Melissa Seixas, emphasizes the importance of this financial relief, stating that many customers face tough decisions regarding their expenses. As part of its commitment to customer service, Duke Energy Florida offers resources like flexible payment plans to help customers manage their energy costs effectively.