Germany's Nuclear Phase-Out Leaves Billions in Uncertainty Over Waste Costs

Germany's nuclear phase-out has taken shape over more than a decade, marked by policy shifts and financial challenges. The decision in 2011 to accelerate the shutdown of reactors revived an earlier plan, but questions remain over funding for decommissioning and waste disposal. Despite progress in renewable energy, uncertainties about long-term costs persist.

In 2011, Chancellor Angela Merkel announced a swift nuclear phase-out after the Fukushima disaster. This move was not entirely new—it revived a policy from the early 2000s that had been paused. The decision gave Germany a decade to adjust, avoiding an abrupt exit.

By 2014, fossil-fuelled electricity in Germany hit a 35-year low, as renewables expanded to fill the gap left by nuclear. This year, non-hydro renewables account for roughly 30 percent of the country's electricity, even with half the nuclear fleet still operational. Without the 2011 phase-out, many reactors might have closed early anyway due to economic pressures. The biggest issue now is funding. A dedicated decommissioning and waste disposal fund was set up, but critics argue it falls short. Bundestag debates from March 2026 revealed that existing provisions—including for the Emsland plant, shut down in April 2023—are insufficient for the billions needed for secure disposal. The fund lacks safeguards if reactor owners go bankrupt, as the money remains under company control. International comparisons highlight the shortfall. Germany's fund should hold around 4.7 billion euros per reactor, far above the UK's 3.3 billion and France's 1.2 billion. Reuters has called the policy uncoordinated, pointing to unclear waste disposal costs as a major flaw.

Germany's nuclear exit has pushed renewables forward, but financial risks remain unresolved. The decommissioning fund, while praised abroad, may not cover the full costs of waste storage. Without stronger guarantees, taxpayers could face future burdens from the phase-out.