Why Global Tech Giants Are Looking at Korea's Nuclear Energy and Construction Powerhouses
The Moment I Realized Nuclear Power Had Become an AI Story
I've been following the AI boom mostly from the software side — new models, new chips, new benchmarks. But somewhere over the past year, I noticed the headlines quietly shifting from GPUs to gigawatts. Amazon signing nuclear deals. A Texas mega-campus with its own private power grid. A Korean company's stock jumping over 300% in a year, not because of a chip breakthrough, but because of steam turbines and reactor pressure vessels.
That's when I started digging into why, out of every country with a nuclear industry, so many of these headlines kept pointing back to South Korea — specifically to names like Doosan Enerbility, KEPCO, KHNP, and Hyundai Engineering & Construction (Hyundai E&C). What I found was a genuinely fascinating convergence of two massive global trends: an AI-driven electricity crunch that traditional power grids can't keep up with, and a handful of Korean companies that happen to be among the only firms on Earth that can build nuclear power on time, on budget, and at serious scale.
This is the story of how that convergence happened, and why it matters for anyone watching the future of energy and AI infrastructure.
The Real Problem: AI Data Centers Are Outgrowing the Grid
It's easy to underestimate just how much electricity modern AI actually requires. According to the International Energy Agency's 2026 analysis, global data center electricity consumption stood at roughly 415 terawatt-hours in 2024 and is projected to climb toward 945 terawatt-hours by 2030 — more than doubling in less than a decade. Some independent estimates suggest global data center consumption may already be approaching 1,050 terawatt-hours as of 2026, a figure that would rank data centers among the five largest electricity consumers in the world if they were treated as a single country.
A single large-scale AI training facility can require anywhere from 100 megawatts to over 1,000 megawatts of continuous power — roughly equivalent to the electricity use of 80,000 to 800,000 homes. In the United States specifically, data centers could account for up to 12% of total electricity consumption by 2030, up from around 4% just a few years earlier.
The problem isn't just the volume of power needed — it's the reliability. Solar and wind can't guarantee constant output, and grid connection queues in places like the US and parts of Europe now stretch out for years due to transformer shortages and permitting bottlenecks. What AI data centers actually need is baseload power: electricity that flows 24/7, rain or shine, day or night. That narrows the realistic options down to natural gas, and increasingly, nuclear.
This is exactly the gap Korean companies have stepped into.
Key Players in South Korea's Nuclear and Infrastructure Sector
To understand how Big Tech is tapping into this ecosystem, it helps to break down the specific roles these major players fill in the global energy supply chain:
| Company Name | Core Strength | Recent High-Profile Project / Deal |
|---|---|---|
| Doosan Enerbility | Reactor Manufacturing & Forging | AWS / X-energy SMR partnership; 11GW Texas AI Campus supply agreement. |
| KEPCO & KHNP | Project Development & Operation | Lead consortium for the $18.6 billion Dukovany nuclear project in the Czech Republic. |
| Hyundai E&C | EPC (Engineering & Construction) | Kozloduy expansion in Bulgaria; FEED contract for the Texas AI Campus. |
Doosan Enerbility: The Manufacturing Backbone Everyone Needs
If there's one company that captures how fast this shift has happened, it's Doosan Enerbility. The company has supplied components to more than 80 nuclear power plants worldwide and is often described by industry analysts as holding a near-monopoly position in South Korea's domestic nuclear steam supply systems. It is also, notably, one of the only companies in the world capable of producing nuclear reactor equipment across the full value chain — from raw forgings to finished reactor components.
In 2025 and 2026, that manufacturing capability turned into a wave of headline deals. In August 2025, Doosan signed a strategic partnership with Amazon Web Services, X-energy, and Korea Hydro & Nuclear Power to help deploy more than five gigawatts of new small modular reactor (SMR) capacity across the US by 2039, aimed specifically at powering Amazon's data centers. That same month, Doosan entered a separate agreement with Fermi America, the Texas-based developer behind an ambitious 11-gigawatt private power grid combining large reactors, SMRs, gas turbines, solar, and battery storage — built explicitly to support what's being billed as the world's largest AI data center campus.
By May 2026, Doosan had joined Europe's first SMR program as well, partnering with Rolls-Royce SMR to help build reactor components for projects in Wales and the Czech Republic. In the same period, the company's near-term order book was also being reshaped by pure AI power demand: in May 2026 alone, Doosan signed a contract to supply four 370-megawatt steam turbines to a major US tech company's Texas data center, following an earlier steam turbine order to another American hyperscaler just two months prior. Analysts tracking the sector noted that Doosan's order backlog had climbed to roughly $16.2 billion in the first quarter of 2026 alone, driven by a 62% jump in new orders.
KEPCO and KHNP: The Team Behind Korea's Biggest Nuclear Export Win
While Doosan builds the equipment, Korea Electric Power Corporation (KEPCO) and Korea Hydro & Nuclear Power (KHNP) are the ones landing the actual government-scale contracts — and the clearest proof of that is the Czech Republic.
In 2025, KHNP signed an $18.6 billion contract to build two APR-1000 reactors at the Dukovany site in the Czech Republic, marking only the second nuclear export project in Korean history after the UAE's Barakah plant. The deal was structured around what's now known as "Team Korea": KHNP as lead contractor, KEPCO E&C handling design and engineering, Doosan Enerbility responsible for major equipment and construction, Daewoo E&C leading structural construction, and KEPCO's nuclear fuel and maintenance affiliates rounding out the supply chain. Construction is targeted to begin in 2029, with the first reactor expected online by 2036.
What makes this win especially significant is the competition Korea beat to get there. France's EDF challenged the decision through Czech courts, and the case went all the way to Czech Supreme Court review before the contract could even be signed. Korea also had to settle a separate intellectual property dispute with Westinghouse, which had claimed KHNP's reactor designs relied on Westinghouse-licensed technology, before the deal could close. Czech officials have since indicated that a second phase — two additional reactors at the Temelín site — could roughly double Korea's total business in the country, from around $20.6 billion to over $41 billion, if the tender moves forward as expected.
Industry Takeaway: Industry analysts point to one simple reason Korea keeps winning these bids: track record. South Korea remains the only country to have completed a modern nuclear build — the UAE's four-unit Barakah plant — on time and on budget, a distinction that has become almost priceless in an era where Western nuclear projects are notorious for cost overruns and multi-year delays.
Hyundai E&C: The Construction Arm Going Global
While KEPCO and KHNP handle ownership-level deals, Hyundai Engineering & Construction has become the go-to builder translating Korean nuclear ambitions into physical construction sites across multiple continents.
In Europe, Hyundai E&C was the only international bidder to meet Bulgaria's strict prequalification requirements for the Kozloduy nuclear expansion project, and it signed a design contract in 2026 to help build two new Westinghouse AP1000 reactors there — marking the company's return to overseas nuclear construction after a 15-year gap. The company is simultaneously running a feasibility study for a nuclear project in Slovenia, has signed an early-stage agreement with Finland's state energy company Fortum, and formed a molten salt reactor technology partnership with a Dutch nuclear research spinoff. In June 2026, Hyundai E&C hosted a supplier symposium in the Netherlands alongside Westinghouse, positioning itself for the Dutch government's plan to build two new nuclear plants.
In the United States, Hyundai E&C became the first Korean construction firm to sign a large-scale nuclear contract on US soil, agreeing to a Front-End Engineering Design contract with Fermi America in late 2025 for four AP1000 reactors at the same Texas "AI Campus" project Doosan is also supplying. The company has also partnered with Holtec International to help build a fleet of small modular reactors across North America, and separately signed a memorandum of understanding with the UAE's Emirates Nuclear Energy Company to explore joint nuclear projects globally — building on Hyundai E&C's role as lead contractor on the UAE's landmark Barakah plant.
Taken together, these deals paint a picture of a construction company transforming its core business model: from a regional builder into one of the few companies in the world trusted to execute nuclear-scale infrastructure projects across the US, Europe, and the Middle East simultaneously.
Why Korea, Specifically?
A few key advantages explain why global tech and energy players keep circling back to Korean firms rather than competitors in France, the US, Russia, or China:
- A completed, on-budget nuclear build: The Barakah plant in the UAE is frequently cited as Korea's calling card — a fully completed, multi-unit nuclear project delivered without the runaway costs and delays that have plagued similar projects in the West.
- An integrated "Team Korea" model: Rather than negotiating separately with a reactor designer, a construction firm, a fuel supplier, and a maintenance provider, buyers can contract with a single coordinated Korean consortium that handles the entire lifecycle of a nuclear plant, financing included.
- Geopolitical alignment: Russia's Rosatom and Chinese state nuclear firms are effectively excluded from most Western markets on security grounds, and France's EDF has struggled with cost overruns on its own domestic projects. This leaves South Korea as one of only a few viable, active democratic partners.
- Speed matters more than ever: AI infrastructure investment is moving at an unprecedented pace. Korean firms' modular construction techniques and standardized reactor designs, like KHNP's APR1400, have reportedly reduced build times to around five years in domestic projects — a massive competitive edge.
The Risks Worth Watching
None of this is without complications. The Westinghouse intellectual property dispute over KHNP's reactor designs shows that even successful deals can carry legal overhang. The EDF legal challenges in the Czech Republic demonstrate that competitors won't simply concede lucrative contracts without a fight. And several of the most eye-catching megaprojects — like Fermi America's 11-gigawatt Texas campus — still depend on regulatory approval from the US Nuclear Regulatory Commission, meaning timelines could shift.
Smaller reactor developers in the broader supply chain, such as NuScale, have also seen volatile stock performance tied to a lack of near-term commercial revenue, a reminder that not every company riding this wave is equally derisked. Still, the direction of travel is hard to miss: as of April 2026, more than 75 nuclear reactors were under construction worldwide, and the US Department of Energy has set a target of adding 200 gigawatts of new nuclear capacity by 2050. Korean firms are positioned at multiple points along that entire buildout.
Frequently Asked Questions
Q: Why are AI companies suddenly interested in nuclear power?
A: AI data centers need constant, reliable "baseload" electricity that doesn't fluctuate like solar or wind. Nuclear power, including newer small modular reactors (SMRs), is one of the few sources that can reliably meet that immense demand at scale 24/7.
Q: What is "Team Korea" in the nuclear industry?
A: It refers to a consortium of Korean companies — led by KHNP, alongside KEPCO E&C, Doosan Enerbility, Daewoo E&C, and KEPCO's fuel and maintenance affiliates — that jointly bid on and execute nuclear power plant projects internationally.
Q: Is Doosan Enerbility only involved in nuclear power?
A: No. Doosan also supplies large gas turbines, hydrogen-ready systems, and wind power technology, allowing them to power data centers quickly while longer-term nuclear projects are still under construction.
Q: How significant is the Fermi America Texas project?
A: It's one of the most ambitious private power projects in the world — an 11-gigawatt independent grid combining four large nuclear reactors, small modular reactors, gas turbines, solar, and battery storage, designed specifically to support a massive AI data center campus.