Germany's Energiewende in Data: Coal Exit, Wind Boom, Nuclear Shutdown
The Energiewende Experiment
Germany launched its Energiewende (energy transition) over two decades ago with a bold vision: phase out nuclear power, dramatically reduce coal, and build a power system dominated by wind and solar. No other major industrial economy has attempted anything comparable in scope or ambition.
The results, as of 2024, are mixed. Germany has the largest installed wind and solar capacity in Europe. It has also spent more on energy transition than any other country. Yet its electricity prices are among the highest in the world, and its per capita CO2 emissions remain above the European average.
The data tells a nuanced story that defies simple narratives of success or failure.
Germany's Electricity Generation Mix: 2015 vs. 2024
| Source | 2015 (TWh) | 2015 (%) | 2024 (TWh) | 2024 (%) | Change | |--------|-----------|---------|-----------|---------|--------| | Coal (hard + lignite) | 273 | 42.0 | 109 | 20.4 | -60.1% | | Nuclear | 92 | 14.1 | 0 | 0.0 | -100% | | Natural Gas | 62 | 9.5 | 78 | 14.6 | +25.8% | | Wind (onshore + offshore) | 88 | 13.5 | 148 | 27.7 | +68.2% | | Solar | 39 | 6.0 | 72 | 13.5 | +84.6% | | Biomass | 51 | 7.8 | 48 | 9.0 | -5.9% | | Hydropower | 20 | 3.1 | 18 | 3.4 | -10.0% | | Other | 26 | 4.0 | 61 | 11.4 | +134.6% | | Total | 651 | 100 | 534 | 100 | -18.0% |
Data: Fraunhofer ISE, AG Energiebilanzen, energtx Research. Explore the full dataset at energtx.com/datasets.
The most striking feature is that total generation has fallen by 18% in a decade. This reflects both improved energy efficiency and the relocation of energy-intensive industry, a trend that concerns German policymakers.
The Coal Collapse
Coal's decline is the Energiewende's most unambiguous success. Germany generated 273 TWh from coal in 2015. By 2024, that figure had dropped to 109 TWh, a reduction of 60%. Lignite, Germany's domestic brown coal, fell from 155 TWh to 68 TWh. Hard coal imports dropped even faster, from 118 TWh to 41 TWh.
This decline accelerated sharply after 2020 as the EU Emissions Trading System (ETS) carbon price rose from 25 EUR/tonne to over 65 EUR/tonne, making coal increasingly uneconomic against gas and renewables. Germany's coal commission recommended a complete coal exit by 2038, with recent political pressure to accelerate to 2030 in western states.
The regional impact has been significant. Lignite mining regions in Lusatia and the Rhineland face economic disruption comparable to coal country transitions in the United States and the United Kingdom. Federal structural adjustment funds of 40 billion EUR aim to cushion the transition.
The Nuclear Exit: The Controversial Decision
Germany shut down its last three nuclear reactors in April 2023, completing a phase-out that began after the 2011 Fukushima disaster. The data reveals the impact clearly.
In 2015, nuclear provided 92 TWh of zero-carbon electricity, 14.1% of the total. That generation has been replaced by a combination of wind (+60 TWh), solar (+33 TWh), and natural gas (+16 TWh). The net effect on emissions is contested. Critics argue that maintaining nuclear would have allowed faster coal phase-out. Supporters counter that the investment in renewables was accelerated precisely because nuclear exit created political urgency.
What is not contested is the scale of zero-carbon generation lost. Germany's nuclear fleet, had it continued operating, would be producing more clean electricity than the country's entire solar fleet. Compared to France, which generates over 300 TWh from nuclear, Germany's decision looks increasingly like an outlier.
The Wind Boom
Wind energy is the backbone of Germany's renewable strategy. Onshore wind capacity reached approximately 62 GW by the end of 2024, with offshore wind adding 9.5 GW. Together, wind generated 148 TWh, making it the single largest source of German electricity.
The growth has not been linear. Onshore wind deployment stalled between 2019 and 2022 due to permitting delays, citizen opposition, and regulatory complexity. It took an average of 5-7 years to permit and build a wind farm in Germany, compared to 2-3 years in Spain.
The federal government responded with emergency permitting reforms in 2023, designating 2% of land area for wind energy and streamlining environmental assessments. The results are beginning to show: 2024 saw the highest onshore wind capacity additions since 2017.
Offshore wind in the North Sea and Baltic Sea has been more consistent, with major projects like the 900 MW He Dreiht wind farm coming online. Germany targets 30 GW of offshore wind by 2030 and 70 GW by 2045.
Solar: The Quiet Revolution
Solar capacity in Germany has doubled since 2018, reaching approximately 90 GW of installed capacity by the end of 2024. Generation reached 72 TWh, accounting for 13.5% of electricity. Rooftop solar, supported by feed-in tariffs and self-consumption incentives, accounts for roughly half of installed capacity.
Germany's solar resource is modest by global standards, comparable to southern Canada rather than the Spain or Australia. Yet cost reductions have made solar economic even at relatively low capacity factors. The levelized cost of utility-scale solar in Germany fell below 50 EUR/MWh in 2024.
The Gas Bridge
Natural gas generation rose from 62 TWh in 2015 to 78 TWh in 2024, an increase of 26%. Gas has filled the role of flexible backup generation as coal and nuclear have declined, ramping up when wind and solar output drops.
Germany's gas dependence became a crisis in 2022 when Russian pipeline gas was cut off. The country responded with emergency LNG import infrastructure, building three floating regasification terminals in under a year. German gas imports have diversified toward Norway, the Netherlands, and LNG from the United States and Qatar.
The longer-term question is whether gas generation will decline as battery storage and hydrogen become viable. Germany's hydrogen strategy envisions replacing gas turbines with hydrogen-ready turbines, but large-scale green hydrogen production remains years away.
Emissions: Progress, but Not Enough
Germany's energy sector CO2 emissions fell from approximately 340 Mt in 2015 to 210 Mt in 2024, a reduction of 38%. Total national emissions (including industry, transport, and agriculture) declined from 903 Mt to approximately 680 Mt.
| Year | Energy Sector CO2 (Mt) | Total CO2 (Mt) | Renewable Share (%) | |------|----------------------|---------------|-------------------| | 2010 | 358 | 943 | 11.3 | | 2015 | 340 | 903 | 14.8 | | 2020 | 262 | 739 | 17.4 | | 2024 | 210 | 680 | 20.5 |
Data: UBA, energtx Research.
Germany's 2030 climate target requires reaching 438 Mt total CO2, implying a further 36% reduction in six years. The power sector is broadly on track, but transport and buildings sectors are lagging significantly.
The Cost Question
Germany has invested over 500 billion EUR in the Energiewende since 2000, financed primarily through the EEG surcharge on electricity bills. German industrial electricity prices of 180-220 EUR/MWh are roughly double those in France and triple those in the United States.
Whether this cost is justified is a political and economic judgment. What the data shows is that Germany has achieved significant decarbonization of its power sector, but at a cost per tonne of CO2 avoided that is substantially higher than nuclear-based strategies like France's or market-driven coal-to-gas switching like that of the United States.
What Comes Next
The Energiewende is entering its decisive phase. Coal must exit by 2030-2038. Wind and solar must roughly double again. Grid infrastructure requires massive expansion. And the question of what provides backup power when the wind does not blow and the sun does not shine remains unresolved.
Germany's energy transition is not a model to copy uncritically, nor is it a cautionary tale to dismiss. It is the largest real-world experiment in decarbonizing an industrial economy, and the data from that experiment is invaluable for every country pursuing similar goals.
Track all German energy indicators at energtx.com/country/germany, and compare Germany's trajectory with peers like France, Poland, and the United Kingdom on energtx.com/datasets.