Sustainability & Impact

Japan Is Funding America’s Nuclear Comeback

Earlier this month, I wrote about the nuclear renaissance happening in the US. Bill Gates pushed TerraPower’s Wyoming reactor

By Conor Healy

March 26, 2026

Japan Is Funding America’s Nuclear Comeback

Earlier this month, I wrote about the nuclear renaissance happening in the US. Bill Gates pushed TerraPower’s Wyoming reactor forward three years early. Meta ordered eight reactors. Google signed contracts for 500+ megawatts. Microsoft restarted Three Mile Island. That was private companies betting billions on small modular reactors.

Now governments are writing even bigger checks. Donald Trump and Sanae Takaichi announced a $40 billion nuclear reactor deal on March 19, 2026. GE Vernova and Hitachi will build BWRX-300 small modular reactors in Tennessee and Alabama. The project is part of a $550 billion US-Japan investment fund created through bilateral trade negotiations.

This is the largest nuclear investment in the United States since the 1970s. Japan is funding America’s nuclear comeback because both countries need to compete with China’s reactor exports. Nuclear investment shifted from private tech companies solving their own power problems to governments deploying tens of billions into infrastructure. The renaissance just became policy.

What the Deal Actually Funds

The $40 billion breaks into two parts: $40 billion for nuclear reactors and $33 billion for natural gas plants. The nuclear component funds BWRX-300 reactors at multiple sites in Tennessee and Alabama. GE Vernova manufactures the reactors. Hitachi provides engineering and construction management.

BWRX-300 is a boiling water reactor design generating 300 megawatts. The reactor uses passive safety systems requiring no external power to shut down safely. Water circulation relies on natural convection instead of powered pumps. If power fails, physics handles the shutdown automatically.

Tennessee Valley Authority territory gets the majority of reactor sites. TVA operates nuclear plants already and has grid infrastructure to absorb new capacity. Alabama gets reactors near existing industrial facilities needing reliable baseload power.

The deal specifies completion timelines between 2030 and 2034 depending on site. First reactors break ground in 2027. This matches TerraPower’s accelerated Wyoming timeline and reflects urgency around electricity demand growth.

The $33 billion natural gas component funds plants in Pennsylvania and Texas. Natural gas balances the grid while nuclear provides baseload. This pragmatic mix acknowledges that renewables plus nuclear still needs dispatchable gas capacity for peak demand and reliability.

The entire $73 billion package comes from the $550 billion US-Japan Strategic Investment Fund established through trade negotiations. Japan gets access to US markets and technology partnerships. The US gets capital deployed into domestic infrastructure creating manufacturing jobs.

From Private Investment to Government Policy

When Bill Gates founded TerraPower in 2008, nuclear was private philanthropy. Gates spent billions personally because venture capital wouldn’t fund 20-year development timelines. The federal government provided research grants but not deployment capital.

That changed between 2024 and 2026. The Infrastructure Investment and Jobs Act allocated $6 billion for existing nuclear plants and $2.5 billion for advanced reactors. The Inflation Reduction Act added production tax credits. These subsidies made nuclear economically viable against natural gas.

The Trump-Takaichi deal represents the next escalation. Not tax credits or research grants, but direct nuclear investment building specific reactors at named locations. Construction deadlines replace aspirational timelines.

Meta announced plans for eight reactors in early 2026. Google signed contracts for 500+ megawatts from multiple SMR companies. Microsoft restarted Three Mile Island Unit 1 for 835 megawatts under 20-year power purchase agreement. These were private companies solving their own electricity problems.

The government deals piggyback on private sector momentum. Tech companies proved demand exists for hundreds of gigawatts of new nuclear capacity. Governments responded by funding supply. The $40 billion reactor deal wouldn’t exist without Meta and Google ordering reactors first.

Why Japan Funds US Reactors

Japan shut down its nuclear program after Fukushima in 2011. All 54 reactors went offline. The country imported liquefied natural gas at massive cost to replace lost electricity generation. Economic pressure forced reconsideration by 2023.

Japan restarted 12 reactors by 2025 and committed to building new plants. But domestic politics remain hostile to nuclear expansion. Funding US reactor construction through trade deals allows Japan to maintain nuclear technology leadership without fighting domestic opposition.

Hitachi partners with GE on BWRX-300 development and manufacturing. Japanese engineers gain experience building advanced reactors in the US market. When global nuclear deployment accelerates, Hitachi has proven technology and construction expertise to export.

This mirrors Japan’s strategy in automotive and electronics. Invest in US manufacturing to access the market while developing technology for global export. Nuclear becomes another sector where Japan maintains technological leadership through strategic partnerships.

The US benefits from Japanese capital and engineering expertise. GE Vernova needs partners to scale SMR manufacturing. Hitachi brings supply chain relationships and quality control processes refined over decades building conventional reactors.

China operates 57 nuclear reactors with 22 under construction. Russia operates 38 reactors and exports technology globally. Both countries treat nuclear as strategic technology for energy security and geopolitical influence. The US-Japan partnership counters Chinese and Russian nuclear export dominance.

The Tennessee Valley Becomes Nuclear Hub

Tennessee Valley Authority operates three nuclear plants generating roughly 8,000 megawatts. Browns Ferry has three reactors. Sequoyah has two. Watts Bar has two. TVA knows how to run nuclear plants at scale.

The new BWRX-300 reactors add 2,000 to 3,000 megawatts depending on how many units get built. TVA’s grid already handles large nuclear baseload. Adding SMR capacity doesn’t require new transmission infrastructure.

Manufacturing jobs concentrate in Tennessee and Alabama. GE Vernova will build reactor modules in factories, not on-site. This requires precision manufacturing facilities employing thousands. Component suppliers cluster around the main factories creating regional supply chains.

Coal plants shut down across Appalachia over the past decade. Mining jobs disappeared. The nuclear manufacturing buildout replaces some of those jobs with similar pay scales for skilled industrial work. Politically, this matters enormously. Energy transition that eliminates coal jobs without replacement creates political backlash. Nuclear manufacturing provides the replacement.

Alabama gets industrial power. Huntsville has aerospace and defense contractors needing reliable electricity. Steel mills and chemical plants require constant baseload power that solar and wind can’t provide consistently. Nuclear solves this without emissions.

The regional concentration also accelerates learning curves. Building multiple reactors in the same area with the same workforce compounds manufacturing improvements. The tenth reactor built costs less than the first because workers and suppliers learned from earlier units.

SMR Economics Still Unproven

NuScale canceled its first Utah project in 2023 when costs doubled. Customers walked away. The company still seeks buyers but faces skepticism about whether SMR cost projections are realistic.

Traditional nuclear projects went catastrophically over budget. Vogtle Units 3 and 4 in Georgia cost $35 billion versus $14 billion projected. They finished seven years late. Every major nuclear project in the US for 40 years exceeded budgets by 100% or more.

SMR proponents argue factory manufacturing and standardization avoid cost overruns. Build modules in controlled factory environments instead of custom construction on-site in all weather conditions. The first reactor is expensive but the tenth costs half as much through learning curves.

The Trump-Takaichi deal tests this theory at $40 billion scale. If GE and Hitachi deliver BWRX-300 reactors on budget and on schedule, SMR economics work and orders flood in globally. If costs double and timelines slip like traditional nuclear, the SMR industry stalls.

TerraPower’s Wyoming reactor completes first, targeted for 2027. That’s the initial proof point. If it operates reliably at projected costs, confidence in SMR economics increases. The Tennessee and Alabama reactors starting construction in 2027 will deliver data by 2030-2032.

Government nuclear investment changes risk calculations. Private companies building reactors with their own capital need confidence in returns. Government-funded projects tolerate more risk because policy goals matter beyond pure economics. The $40 billion commitment shows governments decided nuclear deployment is worth funding even if private sector economics remain uncertain.

China Built This While America Debated

China operates 57 nuclear reactors generating 57 gigawatts. Another 22 reactors are under construction adding 24 gigawatts. China builds nuclear plants in 6-7 years from groundbreaking to operation. The country adds 6-8 gigawatts of nuclear capacity annually.

The US operates 94 reactors generating 97 gigawatts. But only two new reactors came online in the past decade: Vogtle 3 and 4, both massively over budget and behind schedule. The US essentially stopped building nuclear plants in 1980.

China’s CAP1400 and Hualong One reactor designs compete internationally. The country exports nuclear technology to Pakistan, Argentina, UK, and other nations. Chinese reactor vendors bid against US, French, and Russian companies for global projects.

Russia’s Rosatom operates similarly. The company builds reactors domestically and exports technology globally. Russian VVER reactors operate in Finland, Hungary, Czech Republic, India, China, and elsewhere. Nuclear exports provide geopolitical influence as countries depend on Russia for fuel, maintenance, and technical support.

The US ceded nuclear leadership from 1980 to 2020. The Trump-Takaichi deal represents an attempt to reclaim it. GE-Hitachi BWRX-300 reactors must compete against Chinese and Russian designs in global markets. Success requires proving American SMRs cost less and build faster than competitors.

Poland, Czech Republic, Philippines, and other countries want energy independence from Russian gas and Chinese coal. Nuclear provides baseload power without fossil fuel imports. Whoever supplies reactors to these markets gains decades of influence through fuel supply, maintenance contracts, and technology dependence.

The competition intensified in 2024-2025. US SMR companies received billions in government support explicitly to compete with China and Russia. Nuclear became strategic technology tied to great power competition. The $40 billion reactor deal is economic stimulus and geopolitical positioning simultaneously.

How Nuclear Affects Your Power Bill

Nuclear electricity costs $70 to $100 per megawatt-hour for new plants based on Vogtle 3 and 4 data. Natural gas costs $40 to $60 per MWh depending on fuel prices. Solar and wind cost $30 to $50 per MWh but require battery storage adding $50 to $100 per MWh for firm capacity.

SMR proponents claim costs will drop to $50 to $70 per MWh once manufacturing scales. That makes nuclear competitive with gas and renewables plus storage. But first-of-a-kind reactors like TerraPower’s Wyoming plant and the initial BWRX-300 units will cost more.

Government subsidies close the gap. Production tax credits under the Inflation Reduction Act provide $15 to $25 per MWh for nuclear electricity. This makes nuclear economically competitive even if raw costs exceed alternatives.

For consumers, nuclear baseload power stabilizes electricity prices. Solar and wind vary with weather creating price volatility. Natural gas prices fluctuate with global commodity markets. Nuclear has high upfront capital costs but fuel costs stay flat for decades.

TVA customers in Tennessee and Alabama will see grid stability improve as nuclear capacity grows. The region already has low electricity costs compared to national averages due to existing nuclear and hydro. Adding SMR capacity maintains that advantage.

Industrial customers benefit most. Data centers, manufacturing plants, and chemical facilities need reliable 24/7 power. Nuclear provides that better than any alternative. Amazon, Google, and Meta aren’t ordering reactors because they want to save money. They’re ordering because solar and wind can’t reliably power AI training.

The Waste Problem Didn’t Get Solved

Nuclear generates radioactive waste staying dangerous for thousands of years. SMR designs reduce waste volume but don’t eliminate it. The US still lacks permanent waste storage.

Yucca Mountain in Nevada was supposed to solve this. Nevada’s Congressional delegation killed the project. Spent fuel sits in temporary storage at reactor sites indefinitely. No political solution exists because no state wants to store other states’ nuclear waste permanently.

Finland built the world’s first permanent geological repository at Onkalo opening in 2024. The facility stores waste in bedrock 400 meters underground. Sweden and France are building similar facilities. The US has better geology for permanent storage than any of these countries but can’t overcome political opposition.

The nuclear industry argues waste volume is tiny compared to fossil fuel pollution. All US nuclear waste ever produced fits in a football field stacked 10 yards deep. Fossil fuels release billions of tons of CO2 annually plus particulates killing hundreds of thousands through air pollution.

Critics argue volume doesn’t matter when material stays lethally radioactive for 10,000 years. Climate change operates on century timescales. Nuclear waste operates on millennial timescales. Choosing between climate disaster and permanent radioactive waste is choosing between bad options.

The $40 billion reactor deal proceeds anyway because policymakers decided climate change is the more urgent problem. Waste storage gets deferred to future administrations. This might be rational or reckless depending on whether future technology solves waste storage or whether we’re just pushing problems onto descendants.

When the First Reactors Start Operating

TerraPower’s Wyoming reactor targets 2027 completion. If successful, it proves SMR technology works at commercial scale. The Tennessee and Alabama BWRX-300 reactors break ground in 2027 with first units operational by 2030.

Between 2027 and 2032, the US will add 5 to 10 gigawatts of new nuclear capacity from SMRs. That’s small compared to China’s 24 gigawatts under construction, but it reverses 40 years of nuclear decline.

The next five years determine whether nuclear becomes standard infrastructure or remains expensive specialty technology. The $40 billion Trump-Takaichi deal placed a massive bet that SMRs work. By 2030, we’ll know if the nuclear renaissance was real or hype.