Heartland Industrial Park AI data center (Fluidstack, near Merom)
Also called: Next Frontier Indiana Campus, Heartland Industrial Park, Fluidstack Sullivan County
Fluidstack and partners are building a large AI data center campus next to the Merom coal plant in Sullivan County. The first phase is two buildings (430 MW) on about 140 acres; the full site could reach 2.1 gigawatts on about 1,000 acres. The company promised $50 million to the county and says it uses closed-loop cooling.
Where things stand: Phase 1 is under construction. The first data hall is planned to open in July 2027.
🕒 Latest update (Aug 6, 2026): Fluidstack held a public open house in Merom about the project.
What we know
- 📍 WhereHeartland Industrial Park, between County Road 400 West and the Merom Generating Station, outside New Lebanon, Sullivan County
- 🏢 CompanyMeridian Arc HoldCo (Fluidstack and a Coatue-affiliated company); site developer Potentia
- 🏛️ Owned byFluidstack
- 👤 Built forunknown (Google backs the lease)
- 🌳 Size1,000 acres
- ⚡ Power it needs2,100 megawatts (about as much as 1,680,000 homes)
- 🔌 Where the power comes fromPower through Hoosier Energy and WIN Energy REMC, next to Hallador's coal-fired Merom Generating Station. The developer says it pays all energy costs.
- ❄️ CoolingClosed-loop cooling: filled once, then reused
- 💵 Cost$65 billion
- 💸 Tax breaksThe developer says it asked for no property tax breaks for Phase 1.
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- How many diesel backup generators will the campus have? 🙋 I'll find out
- Will new power lines be built, and who pays for them? 🙋 I'll find out
- Who is the end user of the computing power? 🙋 I'll find out
- Is the $50 million county agreement signed, and is it public? 🙋 I'll find out
What happened so far
- 2026A $5.7 billion financing deal closed for the first 430 MW phase on about 140 acres, with Google backing the lease.
- Aug 6, 2026Fluidstack held a public open house in Merom about the project.
Drag the slider to compare the land before and now.
Where this comes from
- FluidStack hosts open house for Sullivan County data center campus · WTHI-TV · Aug 6, 2026
- Sullivan County data center (project website) · Fluidstack
- Data center start-up Potentia behind 2.1 GW Indiana project now backed by Fluidstack and Google · New Project Media · 2026
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