Duke Energy Florida has unveiled an integrated green hydrogen production, storage, and combustion system in Volusia County, Florida. The DeBary production storage system uses renewable energy from a 74.5 MW solar plant which powers two 1 MW electrolyser units. The system supplies hydrogen to a recently upgraded GE Vernova gas turbine that can run on natural gas-hydrogen blends of high percentage hydrogen. The hydrogen produced is stored on-site for use in the combustion turbine.
According to the company, the hydrogen system helps make the natural gas turbines more flexible as the excess daytime solar power is converted into hydrogen and stored for later use. Further, conversion into green hydrogen and storage ensures that renewable energy is dispatched when needed most rather than when it is generated. In addition, the turbines can be operated anytime and are not dependent on season or time of day, as hydrogen storage helps manage the intermittency of solar power. Using hydrogen storage has allowed Duke Energy to use renewable power instead of natural gas, thereby helping displace the cost of fuel for customers.
In December 2025, Duke Energy completed two new solar projects producing 74.9 MW of clean energy each These projects are expected to save around $500 million over their service lifetimes for approximately 2 million customers. Moreover, they form part of the first phase of a plan approved by the Florida Public Service Commission to build 12 solar sites between 2025 and 2027, adding 900 MW and delivering total lifetime savings of about $3 billion.