The March 11, 2011, mega-quake and monster tsunami that set off the Fukushima No. 1 atomic plant meltdowns forced Japan to rethink its nuclear-focused energy policy and explore the use of renewable energy sources, such as solar and wind power.

Almost three years have passed since calamity struck, but has Japan really embraced renewable energy? Following are questions and answers on the current condition of renewable energy:

Has the use of renewable energy increased?