After Japan's Fukushima disaster last year, Germany announced a groundbreaking energy plan: It would phase out all of its domestic nuclear power in a decade and make a transition to safer, carbon neutral energy.
The goal is to have solar, wind and other renewables account for nearly 40 percent of the energy for Europe's largest economy in a decade, and 80 percent by 2050.
But already the revolutionary plan and its ambitious timeline are in doubt.