Germany is revisiting coal-fired power generation as the country’s energy crisis intensifies, raising questions about the viability of net-zero strategies across Europe. The German government confirmed that temporary coal plant reactivations are under consideration to offset natural gas shortages exacerbated by reduced Russian supplies. This move, while framed as an emergency measure, threatens to undermine Germany’s ambitious climate targets and has placed British climate policy under renewed scrutiny.
Dr. Helena Vance, Science and Climate Correspondent: The data is stark. Germany’s energy mix, already under pressure from the phase-out of nuclear power in 2023, now faces a compound crisis. According to the Fraunhofer Institute, renewable energy accounted for 52% of electricity generation in the first half of 2023, but intermittent output from wind and solar leaves gaps that gas has historically filled. With gas storage levels critically low and prices soaring, the return to coal a fuel responsible for roughly 40% of Germany’s CO2 emissions in 2022 is a pragmatic but perilous choice.
The irony is not lost on climate scientists. Germany’s Energiewende (energy transition) was once heralded as a global model. Now, it stands as a cautionary tale of what happens when political ambition meets geopolitical reality. The International Energy Agency notes that coal use in Europe rose by 6% in 2022, driven by the energy crisis, and Germany’s potential decision could push 2023 emissions above 2020 levels.
Meanwhile, across the North Sea, British officials are watching closely. The UK’s Climate Change Committee recently warned that the country is off track to meet its 2030 emissions targets, citing delays in offshore wind and carbon capture projects. Energy security fears have already led to a resurgence in North Sea oil and gas licensing, and environmental groups fear a similar coal backslide unless renewable deployment accelerates.
What does this mean for net-zero? The physics is unforgiving. Every tonne of CO2 emitted now raises atmospheric concentrations for centuries. A return to coal is akin to a patient with a chronic disease choosing a treatment that provides immediate relief but guarantees future organ failure. Models from the Potsdam Institute show that even temporary coal use increases the cumulative carbon budget, making it harder to stay below 1.5°C of warming.
The real failure here is not in coal itself but in the delayed deployment of storage and grid infrastructure for renewables. Battery storage costs have fallen 80% since 2015, yet deployment lags behind solar and wind additions. Germany, for instance, has only 6 gigawatt-hours of utility-scale storage against a need for 50 gigawatt-hours by 2030. Without storage, renewables will always need fossil fuel backups during dark, still periods.
Does this spell the end of net-zero? Not yet. But it forces a reckoning with the timeline. The Intergovernmental Panel on Climate Change (IPCC) states that global emissions must peak by 2025 and halve by 2030 to limit warming to 1.5°C. Every year of coal reliance pushes these deadlines closer. Countries must now ask: is energy independence worth the climate cost? The answer requires a cold, empirical look at the numbers. And right now, the numbers are not in our favour.
