When people talk about the energy transition, they almost always mean electricity. Solar panels on rooftops. Wind turbines on hillsides. Battery storage in shipping containers. The conversation is about electrons.
But roughly half of industrial energy demand in Europe is not electricity. It is heat.
Chemical plants need process heat at 400-600C. Steel mills need 1,200C and above. Cement kilns operate at 1,450C. Paper mills need 150-500C. Glass manufacturing needs 1,500C. Aluminum smelting needs 960C. Refineries need 300-600C.
These industries do not run on solar panels. They run on burning things - primarily natural gas, and in some cases coal and oil. And they pay dearly for it.
The price problem
European industrial gas prices have been volatile and elevated since 2021. Before the energy crisis, industrial consumers in Germany paid roughly EUR 0.03-0.04/kWh for natural gas. By late 2022, spot prices had spiked above EUR 0.30/kWh. They have since stabilized but remain at EUR 0.05-0.08/kWh - roughly double pre-crisis levels.
When you add carbon costs (EU ETS), network charges, and efficiency losses, the effective cost of industrial heat from gas is EUR 0.08-0.15/kWh in most European markets. For energy-intensive industries operating on thin margins, this is the difference between staying in Europe and relocating to the United States, the Middle East, or Asia.
BASF - the world's largest chemical company, headquartered in Ludwigshafen - announced in 2022 that it would permanently downsize its German operations and invest EUR 10 billion in a new site in Zhanjiang, China. The reason was not labor costs or regulation. It was energy.
ThyssenKrupp, Europe's largest steel producer, has warned repeatedly that European energy costs threaten the viability of domestic steel production. The company is exploring hydrogen-based steelmaking, but green hydrogen at scale requires massive amounts of cheap electricity that Europe does not have.
This is not a future problem. Factories are closing now. Jobs are moving now. Industrial capacity that took decades to build is being abandoned because of energy costs.
Why renewables cannot solve industrial heat
Solar and wind generate electricity. Converting electricity to high-temperature heat is possible but inefficient and expensive. Electric arc furnaces work for steel recycling, and heat pumps can handle low-temperature applications below 200C. But for the bulk of industrial heat demand - the 400-1,500C range - direct electrification is either technically impractical or economically uncompetitive.
There is a more fundamental problem: intermittency. A chemical plant cannot shut down when the wind stops. A glass furnace that cools below operating temperature is ruined - it takes weeks and millions of euros to restart. Steel blast furnaces run continuously for years. These processes need heat 24 hours a day, 365 days a year, at predictable costs.
Battery storage does not solve this at the required scale. Storing enough energy to run a chemical plant through a week of low wind would require battery installations larger than the plant itself, at costs that make the entire operation uneconomic.
Hydrogen is the fashionable answer, but it has its own problems. Green hydrogen requires roughly 50-55 kWh of electricity per kilogram. At European electricity prices, this makes green hydrogen far more expensive than natural gas for heat. The infrastructure does not exist. The electrolyzer capacity does not exist. And even if it did, you are converting electricity to hydrogen to heat - each conversion losing energy.
What a thorium MSR delivers
A thorium molten salt reactor operates at 600-700C core temperature. The molten salt is itself the heat transfer medium. This means a thorium MSR can deliver high-temperature heat directly to industrial processes, without the intermediate step of generating electricity first.
For a chemical plant that needs 500C process heat, a thorium MSR is not just an alternative to gas. It is a better heat source - more stable, more predictable, zero carbon, and at a fraction of the fuel cost.
The economics at scale are transformative. Thorium fuel costs are negligible compared to gas. A 100MW thermal MSR operating at 90% capacity factor delivers roughly 790,000 MWh of heat per year. At a levelized cost of EUR 0.01-0.02/kWh (including capital, fuel, maintenance, and waste management), that is a 5-10x cost advantage over gas at current European prices.
For a single large chemical plant consuming 500,000 MWh of heat per year, switching from gas at EUR 0.10/kWh to thorium at EUR 0.02/kWh saves EUR 40 million per year. The reactor pays for itself in years, not decades.
District heating: the low-hanging fruit
Before industrial heat, there is an even simpler application: district heating.
European cities with district heating networks - Stockholm, Helsinki, Munich, Copenhagen, Vienna, Warsaw - currently burn gas, biomass, or waste to heat water that is piped to buildings. These systems need 80-150C heat, well within the capability of any MSR.
Helsinki's district heating system serves roughly 90% of the city. It consumed approximately 7 TWh of heat in 2024, mostly from gas and biomass. A pair of 500MW thermal MSRs could supply the entire city's heating needs, eliminate gas dependence entirely, and do so at lower cost.
Stockholm Exergi, Helsinki's Helen, Munich's Stadtwerke - these are exactly the kind of customers who should be first movers on nuclear heat. They have existing distribution infrastructure, predictable demand, and strong incentives to decarbonize.
The containerized model
The Vantar Energy approach is not to build massive gigawatt-scale reactors. It is to deploy containerized 100MW modular units that can be sited near industrial customers or district heating networks.
A 100MW containerized MSR:
- Occupies roughly the footprint of a large warehouse
- Delivers heat at 500-700C or electricity via a steam turbine
- Operates for 5-7 years between refueling
- Can be factory-manufactured and shipped to site
- Modular: add units as demand grows
This model changes the economics of nuclear. Instead of EUR 10-20 billion mega-projects that take 15 years to build, you deploy standardized units in 3-5 years at EUR 200-500 million each. The risk profile is fundamentally different. The financing is fundamentally different. And the customer can start with one unit and scale.
Who moves first
The industrial companies that secure affordable, clean, baseload heat first will have a structural advantage over competitors for decades. Energy costs are not a one-time expense - they compound every hour of every day. A 5x cost advantage in heat is a 5x advantage in operating costs, forever.
The question is not whether thorium MSRs will power European industry. The physics and economics are too compelling. The question is whether European companies will lead this transition or whether they will wait until Chinese, American, or Canadian companies bring the technology to their doorstep.
European industry is paying EUR 0.08-0.15/kWh for heat that could cost EUR 0.01-0.02/kWh. Every year of delay is billions of euros in unnecessary costs, millions of tons of unnecessary emissions, and thousands of jobs unnecessarily lost to cheaper energy markets.
The heat is the product. The reactor is just the machine that makes it. And the machine exists.