In the United States (US), Duke Energy Corporation (Duke Energy) has announced that it soon will break ground in DeBary, Florida (FL), on the first demonstration project in the US to successfully create clean energy using an end-to-end system to produce, store and combust 100 percent green hydrogen.
The innovative system is the result of collaboration between Duke Energy, Sargent and Lundy, and GE Vernova and will be located at Duke Energy Florida’s DeBary plant in Volusia County, FL.
Duke Energy is constantly evolving and seeking ways to provide clean, safe energy solutions to our customers. DeBary will be home to Duke Energy’s first green hydrogen production and storage system connected to existing solar for power generation, and we are grateful to the city for allowing this innovative technology in their community, said Melissa Seixas, President of Duke Energy Florida.
System for production, storage, and combustion of green hydrogen
This one-of-its-kind, end-to-end system will begin with the existing 74.5 MWe DeBary solar plant providing clean energy for two 1-MW electrolyzer units that will separate water molecules into oxygen and hydrogen.
The resulting oxygen will be released into the atmosphere, while the green hydrogen will be delivered to nearby, reinforced containers for safe storage.
During times when energy demand is highest, the system will deliver the stored green hydrogen to a combustion turbine (CT) that will be upgraded using GE Vernova technology to run on a natural gas/hydrogen blend or up to 100 percent hydrogen.
This will be the nation’s first CT in operation running on such a high percentage of hydrogen.
Duke Energy anticipates hydrogen could play a major role in our clean energy future. Hydrogen has significant potential for decarbonization across all sectors of the US economy. It is clean energy also capable of long-duration storage, which would help Duke Energy ensure grid reliability as we continue adding more renewable energy sources to our system, said Regis Repko, SVP of Generation and Transmission Strategy for Duke Energy.
Ensuring future reliability
Readily available hydrogen is a dispatchable energy source, meaning it is available on demand.
It can be turned on and off at any time and is not dependent on the time of day or the weather, like sun, wind or other renewable energy sources known as intermittent.
Dispatchable energy provides a needed element of reliability that will enable generators to add more intermittent energy sources, yet still ensure they can meet customer demand, even during extended periods of high demand.
Using solar energy to generate green hydrogen enables solar plants to be optimized. Relying on intermittent energy sources without available dispatchable energy sources would put the future electric system at risk of having insufficient energy to serve customer demand.
Construction of the demonstration project in DeBary will begin later this year and could take about one year to complete. Duke Energy anticipates the system will be installed and fully functioning in 2024.
