AWS’s Pennsylvania Gamble: 36 Data Centers Rise on the Ashes of Coal Power

A once-mighty coal plant in rural Pennsylvania stands idle no more. Its hulking infrastructure now anchors an audacious plan. Amazon Web Services aims to erect 36 data center buildings across 1,100 acres in Indiana County. The scale staggers. The implications run deeper.

The Homer City Energy Campus, roughly 50 miles east of Pittsburgh, will draw its electricity from a new 4.5-gigawatt natural gas-fired power plant under construction on the same grounds. Most of that output will feed the computing facilities directly. Yet more than one gigawatt should flow back into the regional grid. TechRadar first detailed the filing.

But this isn’t simply another hyperscale project. It marks a deliberate pivot from coal to compute. The site once housed Pennsylvania’s largest coal-fired generator. That 2-gigawatt facility operated from 1969 until its shutdown in 2023. Now natural gas turbines from GE Vernova will take its place. Seven of the advanced 7HA.02 models will anchor the new plant. Data Center Dynamics reported the preliminary land development plan.

Each data center building rises two stories tall. They reach 70 feet in height. Floor space per structure hits 225,000 square feet. Ancillary facilities will handle offices, storage, electrical substations, security and backup generation. The campus spreads across six distinct sites named Bruner, Helen, Green, West, Harvey/Gaston and Rura.

Construction unfolds in four phases. Work begins in December 2026 on early sections. The final phase kicks off in January 2032. Full completion targets June 2036. A decade of heavy activity lies ahead. And the economic forecasts match the physical scope.

AWS projects 1,500 to 2,000 permanent jobs once everything runs. Average salaries should range from $80,000 to $100,000. Local unions already see opportunity. More than 1,800 contractors and tradespeople swarm the site today. That headcount could reach 2,000 by year-end. Over 10,000 construction-related positions will appear across the project’s life. Ninety-five percent of direct-hire craft labor comes from the area. The Pittsburgh Post-Gazette captured the labor surge.

“For years, our local didn’t take in a single apprentice because the work simply wasn’t here,” said Shawn Steffee, business agent for the International Brotherhood of Boilermakers Local 154. “But now, the Homer City Energy Campus is creating life-changing opportunities for our members and apprentices here in their own community, and we cannot hire fast enough.”

Corey Hessen, CEO of Homer City Generation, praised the union workforce. He noted representation from nine local trades including plumbers, pipefitters and boilermakers. State representative Jim Struzzi called the entire effort “generational.”

Financing flows through Knighthead Capital Management. The firm backs Homer City Redevelopment, the entity converting the old power station. AWS itself forms part of Amazon’s broader $20 billion commitment to Pennsylvania infrastructure. The company first signaled interest in August 2026 through discussions revealed via public records. TribLive obtained those emails.

Power remains the central story. Data centers consume staggering amounts of electricity. AI training and inference accelerate that demand. Traditional grids strain under the load. Here, dedicated generation sits steps away. AWS will purchase power through FirstEnergy, supported by the on-site plant. Excess capacity benefits the wider PJM market.

Environmental groups voice sharp concerns. The Clean Air Council, PennFuture and Sierra Club appealed the gas plant’s air permit. They argue emissions and water use demand stricter review. County planners tabled the AWS land application in September 2026 after a packed public meeting. Residents questioned noise, water draw from Two Lick Reservoir, traffic and transparency. AWS representatives outlined mitigation steps and promised a community benefits agreement. Data Center Frontier examined both the Homer City and nearby Shippingport transitions.

The project fits a larger pattern across Pennsylvania. Former coal sites offer ready infrastructure, water rights and transmission access. Aligned Data Centers pursues its own multibillion-dollar effort at the Bruce Mansfield plant. PPL and Blackstone formed a joint venture to build gas capacity specifically for data center loads. Demand shows no sign of easing.

Yet questions linger. Natural gas buys time. It does not solve carbon goals long term. AWS maintains corporate sustainability targets. The company invests heavily in renewables elsewhere. At Homer City, gas provides the reliable baseload AI requires today. Some analysts see this model spreading. Dedicated power plants paired with computing campuses could become standard where grids cannot keep pace.

Local leaders welcome the shift. Indiana County lost thousands of jobs when the coal plant closed. Tax base erosion followed. The new campus promises reversal. AWS has signaled it will not seek special tax abatements. It will fund its dedicated electrical upgrades. A project narrative filed with the county describes the effort as a “once-in-a-generation opportunity.”

Construction timelines stretch long. Permits must clear. Public pushback could slow progress. The gas plant itself faces ongoing legal challenges. First steel rose in April 2026. Turbines begin arriving next year. Synchronization with data center phases will prove delicate.

Still, momentum builds. Chamber of Commerce leaders toured the site recently. They left impressed by the scale and coordination. For a region battered by industrial decline, the sight of heavy equipment and union workers signals renewal. Coal to compute. The phrase captures the moment.

AWS has not released total investment figures for Homer City specifically. Industry estimates for comparable projects run into billions. The power plant alone represents massive capital. Add dozens of specialized buildings, substations, fiber and cooling systems. The numbers add quickly.

Each building’s design follows standard hyperscale templates. Redundancy features ensure uptime. Security remains tight. Public access ends at the perimeter. The focus stays on performance, efficiency and speed to market for AWS customers racing to deploy AI capabilities.

So the transformation continues. A quiet corner of Pennsylvania now sits at the intersection of energy policy, technology demand and economic revival. Success here could influence decisions in other coal-dependent states. Failure would ripple too. For now, the machines move dirt. The plans sit with regulators. And the region holds its breath.