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A new megaproject on renewable energy, combining multiple storage technologies, is considered the largest in the world and is expected to move to central Utah.
The Advanced Clean Energy Storage Project (ACES) will house an energy storage capacity of 1,000 megawatts, which will power 150,000 homes for one year.
As a joint Mitsubishi Hitachi Power Systems (MHPS) and Magnum Development joint venture, the ACES project will utilize four different storage technologies: renewable hydrogen, compressed air energy storage, battery backups, and more. large-scale flux and solid oxide fuel cells.
MHPS says it has developed a gas turbine capable of producing energy using a mixture of renewable hydrogen and natural gas. Finally, the gas part of this equation will be removed:
The MHPS technology roadmap aims to use 100% renewable hydrogen as a power source, which will allow gas turbines to produce carbon-free electricity.
In the official announcement of ACES, Paul Browning, President and CEO of MHPS Americas, said:
"For 20 years, we have reduced carbon emissions from the US grid by using natural gas in combination with renewable energy to replace coal-fired power generation. In California and in other western US states, which will soon have abandoned all their coal power generation, we need the next step in decarbonization. The next step is mixing natural gas and storage, and then using 100% renewable storage. The technologies we deploy will store electricity at intervals of a few seconds each season of the year. For example, when we add renewable hydrogen gas turbines to a salt dome for storing hydrogen, we have a solution that stores and generates hydrogen. electricity with zero carbon emissions. "
The Millard County, Utah site appears to have been chosen for the existing energy infrastructure in the area and for its location in relation to the Magnum Salt Caves. Leaders and officials see it as a key project, not only for Utah, but for the entire western United States, including California.
The statement said that "in the weeks and months ahead, new strategic and financial partners will be invited to participate."
In an interview with Power Magazine, Browning said the 1,000 MW figure includes storage and power generation, as well as AC and DC transmission lines. An "initial phase" of 250 MW of underground storage is expected to be completed by 2025.
Electrek's Take
Several questions remain unanswered about this unique project, but the construction seems to be quite advanced, so there is plenty of time to understand the details. We wonder how long it will take for the natural gas / hydrogen turbine to be just hydrogen – it is considered a renewable energy storage project, but we will focus more on the "storage of energy".
Everyone involved is certainly right when it comes to meeting an urgent need for energy storage, both in the western United States and beyond. We hope to see progress on this project and many others, such as Oregon's wind / solar / storage project, in the future.
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