With a large share of their nuclear power plants down at the moment, both Japan and Germany are scrambling to meet energy demand and figure out how to get by without nuclear in the future.

After Japan’s nuclear disaster, Germany temporarily shut down seven of its oldest nuclear reactors, and later decided to keep them shut. Not long after, the country’s parliament voted to phase out all of the country’s nuclear power plants by 2022. But Germany’s Federal Network Agency said last week one of the old reactors may need to be restarted to meet energy demand.

While Germany has voted for an “energy revolution” based on renewables, the country is slated to boost its reliance on fossil fuels in