US Now Builds Twice as Much Gas Power as China, Driven by AI Data Center Boom
Summary
- • US surpasses China in new gas power construction for first time in decades, driven by AI demand
- • AI data center boom triggered a 76% surge in US under-construction gas projects in H1 2026
- • 378GW of US gas capacity now in overall development — nearly one-third of the global total
- • If fully built, the buildout would cost $647B+ and could raise US power emissions by up to 20%
Details
US gas capacity in development reaches 378GW
Up from 252GW in January 2026, a 50% increase in six months, now representing nearly one-third of the global total for gas power under development.
76% surge in under-construction US gas projects in H1 2026
The US increased under-construction gas-fired capacity by 76% in the first half of 2026, reversing China's longtime lead in new gas power construction.
Capital cost exceeds $647B if all projects completed
Global Energy Monitor estimates the total capital investment would exceed $647 billion if all announced, pre-construction, and under-construction US gas projects are completed.
Could raise US power emissions by up to 20%
One estimate projects US electricity sector emissions could increase by as much as 20% if all AI-linked gas capacity is built and fully operated.
~Half of new gas capacity directly tied to AI data centers
Approximately half of the new gas power projects under development are directly linked to proposed AI data centers, reflecting the enormous electricity demands of large-scale AI computing.
IEA forecasts US to outspend China on fossil fuel power plants
The International Energy Agency projects US spending on coal and gas power plants will exceed China's for the first time in decades, reversing a long-running trend of Chinese dominance in energy infrastructure investment.
New York enacts first US hyper-scale datacenter building ban
In July 2026, New York became the first US state to impose a temporary ban on new hyper-scale datacenter permitting and construction amid growing local opposition and environmental concerns.
Turbine backlog forces operators toward less-efficient units
A shortage of efficient gas turbines — caused by the stampede of tech companies building data centers — has led companies including Elon Musk's xAI to switch to smaller, more polluting turbines.
75% of Americans oppose living near a data center
A Heatmap poll found three-quarters of Americans do not want to live next to a data center, representing a large increase in opposition compared to a year prior.
Two-thirds of planned data centers in drought-stricken areas
Of more than 800 planned data centers, approximately two-thirds are located in areas experiencing drought, raising significant concerns about water consumption alongside emissions.
Source: Global Energy Monitor analysis, The Guardian (Aug 25, 2026)
What This Means
The AI infrastructure boom is fundamentally reshaping US energy policy and reversing decades of trends in which China led global gas power expansion. The scale of the buildout — if fully realized — would lock the US into fossil fuel dependence for decades while dramatically raising electricity sector emissions and costs for ordinary ratepayers. This creates a deepening and politically charged tension between national AI ambitions and climate commitments, already generating significant local opposition, legislative pushback, and the first state-level ban on new hyperscale datacenter construction. The environmental and geopolitical stakes will only grow as more AI capacity comes online.