Batteries
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Behind the meter Building and running the plant
The IEA Says It Is Not Clear That Onsite Generation Necessarily Promises Data Centers a Faster Route to Market at Scale, in the Context of a Supply Crunch for Gas Turbines
The IEA's executive summary says reliable onsite gas-fired power for "critical and variable data centre load" requires overbuilding onsite generation relative to demand, and that, with a supply crunch for gas turbines, "it is not clear that onsite generation necessarily promises a faster route to market for data centres at scale."
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Rules and permits Rules and tariffs
Primarily to Serve a Large Load Customer: Indiana's Commission Approves a Utility's Storage and Solar Project
The Indiana Utility Regulatory Commission approved on October 7, 2026 a utility's project of two stand-alone battery systems and a hybrid solar plus storage resource, proposed "primarily to provide the requisite incremental energy and capacity" for a customer's planned data center site.
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Battery Storage on the U.S. Grid, in Operation and in Plans: EIA's Note of August 7, 2026
A note of August 7, 2026 from the U.S. Energy Information Administration counts the utility-scale battery storage in operation in the United States at the end of 2025 and at mid-2026. It also gives the additions operators plan through 2028, according to plans they report to the agency.
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A Data Center Campus and Its Dedicated Energy Infrastructure: The Energy Department's Paducah Partnership
On July 29, 2026, the U.S. Department of Energy announced a partnership to turn parts of its Paducah Site in Kentucky into a data center campus, with new gas-fired generation and battery storage planned at or near it. The power service agreement still needs a state commission's approval, and construction is expected to be completed in 2031.
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Behind the meter Building and running the plant
Not Physically Connected to the Electric Power Grid: Ohio's Siting Board Approves a Gas Plant for an Adjacent Data Center
On June 26, 2026, the Ohio Power Siting Board approved the construction of a natural gas fired plant that will serve an adjacent data center and will not be physically connected to the grid, with battery storage "to accommodate fluctuations in demand and mitigate unplanned outages."
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Rules and permits Rules and tariffs
Must Foot the Bill: Michigan's Commission Approves Battery Storage for a Data Center
On March 27, 2026, Michigan's Public Service Commission approved six energy storage projects for a utility, three of them to serve a data center whose developer must pay to develop storage that matches the data center's contracted demand. The same release recorded that the commission denied petitions for rehearing on the data center's special contracts.
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A Record If Realized, and More Than Half of It Solar: EIA on the Capacity Planned for 2026
The U.S. Energy Information Administration reports that developers and operators plan to add a record amount of generating capacity to the U.S. grid in 2026, if the plans are realized. Solar makes up the largest share of the plan, followed by battery storage and wind.
