The Investment Imperative
Nuclear is at an inflection point and the capital required to scale it cannot come from governments alone
Combined global government nuclear capacity targets for 2050
Average annual investment to deliver government targets
Annual nuclear investment must more than triple
Nuclear finance is at an inflection point
After decades of uneven progress, nuclear energy is re-emerging as a core component of national energy strategies across a growing number of markets.
This shift is being driven by three structural trends: rising demand for clean, reliable power; the imperative of energy security; and the emergence of new sources of electricity demand, including electrification, industrial growth, and data centre expansion.[1] The International Energy Agency (IEA) projects that 2026 to 2030 will see 50% more electricity demand growth per year than the previous decade.[2]
Nuclear's unique value proposition has become increasingly well understood in this context. As a low-carbon source of firm, dispatchable energy, nuclear can contribute to a least-cost pathway to a clean energy system.[3]
more electricity demand growth per year from 2026 to 2030 than the previous decade, the IEA projects[2]
The policy environment has also shifted materially
The EU taxonomy for sustainable activities now recognizes nuclear as a transitional activity, contributing to climate change mitigation.[6] For the first time in decades, the World Bank Group will begin to re-enter the nuclear energy space, having formalized a new partnership with the International Atomic Energy Agency (IAEA) in June 2025, signalling renewed multilateral development bank engagement with the sector.[7]
Production tax credits in the United States provide durable economic support for both operating and new-build capacity.[8]
Finally, the COP28 Declaration to Triple Nuclear Energy Capacity by 2050, sponsored by World Nuclear Association and backed, as of June 2026, by 38 countries representing over 70% of global GDP, demonstrates collective political ambition.[9]
Together, these signals are giving supply chains the confidence to invest in new capacity and nuclear developers the visibility to advance through licensing and other precommercial milestones.
Capital markets are beginning to respond. Financiers are developing the origination capabilities and financial infrastructure needed to support emerging nuclear opportunities. Although some market participants have been engaged in nuclear financing for several years, the broader financing ecosystem, including providers of catalytic capital, is still maturing.
Changing risk profile
The industry has been here before.
Between 1970-89, nuclear capacity tripled from 100 GWe to 300 GWe, but momentum stalled. Some countries, such as China, Russia, Japan (until 2011) and South Korea, have continued building nuclear power plants, while in Western Europe and North America many projects were abandoned or suffered from delays and cost over-runs. They became cautionary tales, reinforcing the perception in those regions that nuclear is too expensive and takes too long to build. This primarily was the result of project delivery failures, loss of industrial capacity and regulatory delays rather than any fundamental flaw in the performance, safety or cost of the technology itself.
Nuclear plant construction in China or South Korea[10] demonstrate that nuclear projects can achieve competitive construction schedules and costs when supported by strong industrial capacity, regulatory certainty, standardized designs and sustained deployment programmes . Their track record is a primary reason that the IAEA[11], IEA[12]and OECD Nuclear Energy Agency (NEA)[13] place nuclear capacity growth prominently in least-cost pathways to clean energy.
A financing gap
While the strategic case for nuclear is strengthening, mobilizing sufficient capital remains one of the central challenges.
World Nuclear Association estimates that achieving the existing governments’ nuclear ambitions of 1446 GWe by 2050 (more than tripling current capacity)[14] would require around $6 trillion of nuclear investment over the next 25 years[15], an average of approximately $250 billion per year, roughly three times today’s annual investment of $80 billion.[16]
Yet, outside of China and a small number of other domestic markets, capital is not flowing with sufficient scale, predictability or regularity to meet global demand for nuclear energy. Government balance sheets, sovereign wealth funds and other strategic investors remain essential, but they cannot provide capital at this scale alone.[17]
In many parts of the world, private capital will be needed to complement public investment and support the scale of nuclear deployment that governments and energy markets increasingly require.
A credible path to mainstream finance is a practical necessity to inform and enable financial decision-making consistently with fleet deployments. In many parts of the world, private capital will be needed to complement public investment and support the scale of nuclear deployment that governments and energy markets increasingly require. A credible path to mainstream finance is a practical necessity to inform and enable financial decision-making consistently with fleet deployments.
For mainstream financiers, the main barrier is not one of capital required or risk appetite, but of market readiness and long-term policy commitment.
Financial frameworks, standardized instruments, comparable market data, and track records that allow mainstream investors to assess and price nuclear risk with confidence are still being developed.
First, development-stage financing for activities such as licensing, engineering, site preparation and early procurement, typically has no revenue stream to support it.
It falls outside standard project finance structures, leaving developers reliant on corporate balance sheets, vendor risk-sharing or early-stage catalytic capital.
Second, the supply chain requires its own financing.
Manufacturers and component suppliers need working capital, tooling investment and capacity expansion funding well ahead of confirmed orders, distinct from the financing of the plant itself. Export credit agencies, trade finance and supplier-focused guarantee instruments are central to closing this gap. Closing both gaps is a precondition for the transition described in this roadmap.
