Grohnde nuclear power station in Lower Saxony, Germany, is the most productive power plants of its size anywhere in the world since it came online in the mid-1980s.

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Grohnde recently passed a new milestone, achieving 350 billion kWh of energy output during its 32-year operational life, making it the world's most productive commercial nuclear plant. With just one reactor on a single square mile of land, it is the most productive power plant of its size, full stop.