October 10, 2018 Read More →

Carolina utility plans major investment in energy storage

S&P Global Market Intelligence ($):

Duke Energy Corp. plans to invest $500 million to add nearly 300 MW of battery storage to its portfolio in the Carolinas over the next 15 years.

“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,” Robert Caldwell, president of Duke Energy Renewables Inc., said in an Oct. 10 news release.

Duke Energy subsidiaries Duke Energy Carolinas LLC, or DEC, and Duke Energy Progress LLC, or DEP, initially outlined the potential to deploy the battery storage projects in their integrated resource plans, or IRPs, filed in early September with the North Carolina Utilities Commission. The utilities file separate IRPs for North Carolina and South Carolina, but each plan analyzes the system as one utility across both states.

DEC’s resource plan includes a placeholder for 150 MW of “grid-connected battery storage” and also outlines the utility’s plans to complete about 260 MW of capacity uprates at its 1,360-MW Bad Creek Pumped Storage Project in South Carolina between 2020 and 2024.

Duke Energy noted that there is currently about 15 MW of battery storage capacity in North Carolina with “far less in South Carolina.”

More ($): Duke Energy plans to add nearly 300 MW of battery storage in Carolinas

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