A renewables-led energy system can save Europe trillions — and the full picture goes far beyond a simple price tag.
But here’s the essential point: even after counting grids, storage, and backup, a high-renewables system remains far cheaper than alternatives. WindEurope, in collaboration with Hitachi Energy, mapped total system costs across five scenarios—four aligned with net-zero targets and one slower-transition path that falls short of climate goals.
Across these scenarios, those relying more on nuclear power, hydrogen, or carbon capture and storage come out more expensive than a renewables-dominated mix. By 2050, the cost gaps range from €487 billion to €860 billion in favor of renewables.
In fact, a renewables-based system saves about €1.6 trillion compared with a future where net-zero goals are not achieved. Much of that difference stems from lingering fuel costs and carbon penalties in the slow-transition path. Even as early as 2035, renewables beat the slow-transition path by about €331 billion.
The cumulative savings from running largely on renewables are roughly equivalent to Europe’s annual healthcare expenditure, and represent about 9% of the EU’s GDP.
Transitioning to a renewables-centric energy mix means electricity plays a much larger role within the overall energy system, which requires substantial investment in electrification—especially for heavy industry. The study accounts for this investment, and even with electrification costs included, a renewables-first pathway remains the least expensive option.
A high-renewables system also strengthens grid stability and creates a substantial energy-security margin, with production consistently exceeding demand.
Moreover, renewables offer greater resilience to external shocks, such as the disruption seen after Russia’s invasion of Ukraine. By 2050, energy fuel imports would account for only 22% of total energy supply in the renewables scenario, versus 54% in the slow-transition scenario.
Beyond costs and reliability, there are clear social and economic benefits. The European wind sector already supports about 440,000 jobs today and is projected to reach 600,000 jobs by 2030.
There is no upside to reducing climate ambition or delaying renewables adoption. The International Energy Agency’s 2025 World Energy Outlook describes this era as the Age of Electricity, with renewables best positioned to lead. Embracing this trend is a competitive advantage for Europe.
The transition is already underway. Looking back to 2000, wind and solar contributed just 0.8% of Europe’s electricity; today they account for about 30%. Emissions have fallen by nearly one-third since 2000, while the economy has grown by around 45%. The path forward should build on this success.
For more details, see the study at WindEurope’s data hub: https://windeurope.org/data/products/energy-system-costs/
