Flint Grid Battery
Energy Storage System
The PJM electricity market's largest battery storage project is under construction
and will be operational in Spring 2027.
Enabling Datacenter Load Growth at Lower Cost Through More Efficient Use of the Existing Grid
Columbus, Licking County and the greater New Albany region have become an epicenter of America’s future economic growth. The area is now home to one of the world’s largest concentrations of hyperscale data centers, as well critical strategic manufacturing and industrial development. These investments are bringing jobs and long-term growth to Central Ohio while also creating an unprecedented need to expand the electricity generation and delivery network.
Now under construction, the Flint Grid Battery Energy Storage System (BESS) is strategically located at a major substation in the middle of this datacenter and industrial cluster and is specifically designed to make better use of the existing electric grid while providing a local reliability resource that allows more critical datacenter load to be served without building any new transmission lines, thereby helping meet rapidly growing electricity demand while lowering costs for consumers. As a site that has been in development for years and has received all of the necessary permits from the state siting board, this technology solution can be deployed much more quickly than major new transmission lines or generation facilities, providing an important bridge solution that supports regional reliability and keeps the economy growing while longer-term infrastructure is planned, permitted, and built.
Located in Jersey Township and scheduled to be operational by late Spring 2027, Flint Grid’s first phase will provide a 200 MW / 5.3-hour battery energy storage system that is capable of storing more than 1 GWh of electricity and that will be able to respond to changing grid conditions in milliseconds, providing immediate electricity where and when it is needed with a highly flexible resource that is able to keep the grid in balance throughout the year. Eolian first began developing Flint Grid in 2018, anticipating a need to meet the area's growing grid constraints as some of the region’s first datacenters were being constructed, well before today’s surge in electricity demand gained national attention.
Flint Grid is in the news! Read the Press Release here: Eolian Announces 1+ GWh Flint Grid BESS: PJM's Largest Battery Energy Storage Project Now Under Construction to Support America's Fastest-Growing Data Center and Industrial Corridor near Columbus, Ohio
Flint Grid Highlights
● The largest battery energy storage (BESS) resource to be constructed to date in Ohio and the PJM electricity market. Flint Grid’s first phase is a 200 MW / 5.3-hour BESS project that will provide more than 1 GWh of electricity storage capacity and able to respond to grid fluctuations in less than a second.
● Located in Jersey Township, Licking County, Ohio, in the middle of the New Albany data center / advanced manufacturing / industrial load corridor; Flint Grid is strategically sited and specifically designed to connect to one of the region’s most critical load-serving substations and to be fully operational before Summer 2027 to address the area’s unprecedented electricity demand growth and the need for new capacity as seen by recent PJM auction results. Flint Grid is the largest BESS unit to ever clear the PJM capacity auction, providing more than 50% of the entire BESS resource class in PJM's 2027 capacity year starting on June 1, 2027.
● Having begun development in 2018, Flint Grid is strategically positioned to help bridge the gap between today's rapidly growing electricity demand and the future transmission and generation projects under consideration and planning. By making more efficient use of existing transmission and grid infrastructure, the project helps improve regional reliability while lowering costs for Ohio electricity consumers.
Supporting Reliability Across PJM
PJM coordinates the movement of wholesale electricity across a multi-state region, including Ohio. Its capacity market helps ensure that enough resources will be available to meet future electricity demand and maintain grid reliability.
As the first large-scale battery energy storage project to qualify for the PJM capacity market and clear PJM’s 2027–2028 Residual Capacity Auction, Flint Grid accounts for more than half of all new battery storage capacity cleared for that capacity year. These milestones reflect the increasingly important role battery storage plays as electricity demand accelerates across the PJM region.
Due to how quickly battery storage can be developed and deployed as compared to many traditional infrastructure projects, it provides critical reliability support while new transmission and generation resources move through multi-year planning, permitting, and construction processes.
How Battery Storage Supports Reliable, Affordable Electricity
Reliable electricity depends on maintaining a constant balance between supply and demand.
As electricity demand grows faster than new transmission lines and generation can be built, battery energy storage provides a fast, flexible resource that helps bridge that gap. By storing electricity when it is abundant or lower-cost and delivering it when demand increases, battery storage makes better use of the existing electric grid, improves reliability, and helps lower costs for consumers.
Modern battery energy storage projects can:
● Keep electricity flowing during periods of high demand;
● Support grid reliability during extreme weather and other challenging conditions;
● Make better use of lower-cost electricity resources;
● Capture electricity that might otherwise be curtailed or go unused;
● Reduce strain on the electric grid during peak periods;
● Respond within milliseconds when grid conditions change;
● Help grid operators integrate a diverse mix of electricity resources; and
● Bridge rapidly growing electricity demand while new transmission and generation infrastructure is planned, permitted, and constructed.
Designed with Safety at the Forefront
Flint Grid was developed through Ohio's rigorous, state-led Ohio Power Siting Board review process, which evaluates proposed energy infrastructure through comprehensive engineering, environmental, safety, and community reviews before construction may begin. The project's approval reflects years of detailed analysis and compliance with Ohio's regulatory requirements.
Modern battery energy storage facilities are designed, constructed, and operated under stringent safety standards. Current-generation projects incorporate significant advances in battery chemistry, system design, monitoring, fire protection, and emergency-response planning. Flint Grid is designed to comply with National Fire Protection Association Standard 855, the leading U.S. safety standard governing stationary battery energy storage facilities.
Eolian has funded or developed more than 30 GW of operating energy infrastructure projects across the United States, including more than 4 GW of commercialized battery energy storage projects. Eolian’s team has safely constructed more than 900 MW of operating battery energy storage projects in Texas, Oregon and California since 2020, and has experience safely operating its fleet of grid-scale battery energy storage projects since 2021. The company has also supported state-level efforts to strengthen battery energy storage safety requirements and advance industry best practices.
Project Resources
View Ohio Power Siting Board Case Records HERE.
Eolian is committed to providing the public with access to information about the Flint Grid Project. Flint Grid successfully completed Ohio's comprehensive and rigorous Power Siting Board review process, which included detailed engineering, environmental, safety, and technical evaluations.
Throughout the life of the project the relevant permit applications, regulatory filings, testimony, and other materials submitted during the state review process are available through the Board's online case-record system.
Eolian employees, management and partners approach every project with a simple belief:
The strongest infrastructure projects create lasting value for the communities they serve.
About Eolian
As America’s economy continues to evolve, Eolian’s mission remains the same: build critical energy infrastructure that strengthens the grid and directly enables further economic growth and the expansion of vital strategic industries; support the communities that enable and host this infrastructure; and create lasting value for future generations in host communities and across the country.
We work to deploy innovative technologies and solutions through responsible development, meaningful community partnerships, disciplined long-term investment, and a commitment to creating value that extends well beyond the project itself.
Identifying strategic locations where battery energy storage and other energy resources can make a disproportionate impact results in more efficient use of the grid infrastructure that already exists. Our founding management team has developed and financed energy infrastructure projects across the United States, helping bring more than 30 gigawatts of battery energy storage and clean energy generation into operation or construction.
Eolian is owned by our employees and funds managed by Global Infrastructure Partners, a BlackRock company and leading global infrastructure investor.
Flint Grid, a 200 MW / 5.3-hour (1.06 GWh) battery energy storage project, demonstrates how Eolian's long-term investment strategy anticipated growing electricity demand and will unlock the grid using flexible resources in the core of one of the nation's most critical locations for AI datacenter development.
Contact the Flint Grid Team
Eolian welcomes questions, feedback, and concerns from members of the community.
For additional information about Flint Grid, its construction, operations, safety measures, permitting, or community impacts, please contact our project team directly by using the form below.