AWS explores 4.5GW US gas plant site for data centre amidst rising AI energy needs

13 August 2026 2 min readSource: datacenterdynamics.com
AWS eyes potential data center development at 4.5GW natural gas plant in Pennsylvania - DCD

Executive summary

Amazon Web Services (AWS) is investigating the development of a data centre campus adjacent to a new 4.5GW natural gas-fired power plant in Pennsylvania, USA. This move is part of AWS's significant investment plans in the state and highlights a trend of data centres co-locating with substantial power generation. The plant, set to be one of the largest gas-powered facilities in the US, explicitly targets data centres as potential customers.

Reporting based on datacenterdynamics.com

Why it matters

This report from the US demonstrates a growing trend where hyperscale data centre operators are directly engaging with large-scale power generation projects to secure energy supply. For the UK AI infrastructure and energy sector, this illustrates potential future models for power procurement and site selection, especially as demand for energy-intensive AI compute escalates, putting pressure on existing grid infrastructure and energy security considerations.

Sector impact

Analysis by AI Energy Intelligence UK

UK electricity demand

The proposed data centre development at a 4.5GW natural gas plant signals a potential massive increase in electricity demand for AI infrastructure, directly linking new data centre capacity with dedicated, large-scale generation. While this specific project is in the US, it indicates the scale of power required for hyperscale facilities and the measures being considered to meet it, implying similar demands could arise in the UK.

UK energy security

Co-locating data centres with a new 4.5GW natural gas plant, which targets data centres as customers, suggests a strategy to secure a dedicated and substantial energy supply. This approach could be viewed as a way to enhance energy security for critical AI infrastructure by ensuring a direct power source, potentially reducing reliance on the broader grid for new, large-scale loads, though it relies on fossil fuels.

Businesses

For businesses in the UK, particularly those involved in AI and data centre development, this US case highlights the strategic importance of energy supply in site selection and expansion. It may influence future investment decisions towards locations with guaranteed, high-capacity power, or encourage direct investment in power generation or long-term power purchase agreements to support AI compute needs.

Consumers

While this particular development is in the US, the increasing demand for energy from AI infrastructure, exemplified by projects seeking gigawatt-scale power sources, could eventually impact UK consumers. Should similar models emerge in the UK, the need to build new generation or upgrade grid infrastructure to support data centres could have implications for energy costs and supply stability, albeit indirectly.

Key statistics

4.5GW
New natural gas plant capacity
2GW
Former coal plant capacity
3,200-acre
Site acreage
50 miles (80 km)
Distance from Pittsburgh
$20 billion
Estimated Amazon investment in Pennsylvania

Figures as reported by datacenterdynamics.com. See original source for context.

Quotations

"As part of our commitment to invest at least $20 billion in Pennsylvania, we are evaluating multiple sites across the commonwealth. While we don’t have a definitive agreement in place, we are in discussions with Homer City Redevelopment"

an Amazon spokesman

Long-term implications

The direct linkage between hyperscale data centre development and gigawatt-scale power plants, especially new gas-fired facilities, points to a long-term strategy of securing dedicated, robust power for AI workloads. This trend suggests a potential shift towards energy self-sufficiency or co-location with generation for large data centres, which could have profound implications for grid planning, energy policy, and the energy mix supporting AI infrastructure globally, including the UK.

Data CentresNatural Gas Power PlantsCloud Computing

Frequently asked questions

What is AWS exploring in Pennsylvania?

AWS is exploring the development of a data centre campus next to the planned Homer City Redevelopment, which will be a 4.5GW natural gas-fired power plant outside Pittsburgh.

What is the scale of the power plant?

The new natural gas plant is designed to be 4.5GW, making it potentially the largest natural gas-powered plant in the country, and is due online in 2028.

Why is this significant for the UK?

This development highlights a trend where hyperscale data centres are directly seeking large-scale power generation. This model could influence future strategies for securing energy for AI infrastructure in the UK as demand increases.

Original source

This story summarises reporting from datacenterdynamics.com. Read the original for full context.

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The measured evidence behind this story

Our reporting sits on top of the UK AI Energy Index — a sourced, dated record of AI and data-centre electricity demand, data-centre development and grid pressure.

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