A large-scale system combining advanced batteries and ultracapacitor energy storage to provide both grid services in front of the meter and behind the meter solar shifting is up and running in North Carolina, according to one of the project’s partners.

Maxwell Technologies’ director of business development, Dr Kimberley McGrath, told Energy-Storage.News that the ‘hybrid ultracapacitor-battery energy storage system’ which combines multiple applications simultaneously, is an “ideal pilot” and is now operating.

The project was announced in March by utility Duke Energy, which served as ‘host utility’ for the US Energy Storage Association’s annual conference in April and has deployed several significant storage projects including the US’ largest wind farm-storage plant in Texas along with others in Ohio, North Carolina and Indiana with further investments elsewhere.

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Tags: energy storage, ultracapacitor, duke energy