So do Vattenfall of Sweden, which operates two, and EnBW, which runs four.

ECONOMIST: Germany's nuclear operators

Stoccer is backed by Union Investment, an asset manager, and EnBW, a power company, and by the Federal Ministry of Education and Research.

ECONOMIST: Buttonwood

The suspension is also likely to lead to a temporary shutdown of one nuclear plant operated by German utility EnBW AG, and if continued, may force another owned by RWE AG offline, at least temporarily, this year.

FORBES: Aftershocks: Nuclear Energy Fallout From Japan