Floating windmills in Japan - what could possiblty go wrong?

The Japan Times tells us that

Floating windmills offer hope of ending nuclear reliance

A consortium backed by the Ministry of Economy, Trade and Industry is preparing to bolt turbines onto barges and build the world's largest commercial power plant using floating windmills off Fukushima Prefecture, tackling the engineering challenges of an unproven technology to cut reliance on nuclear power.

Fukushima? That name rings a bell, so while I ponder on it, read on

"Japan is surrounded by deep oceans, and this poses challenges to offshore wind turbines that are attached to the bottom of the sea," senior vice environment minister Katsuhiko Yokomitsu said last month. "We are eager for floating offshore wind to become a viable technology."

Fukushima - goddit! 11 March 2011, undersea earthquake, multi-metre tsunamis, coastal devastation, nuclear reactors on the coast, near meltdown.

Lessons from History, Vol. I - "Deja vu can be a very nasty experience"

Pacific
Tectonic boundaries
Undersea earthquakes
Tsunamis
Japan
Floating offshore wind turbines

What could possibly go wrong?

H/t junkscience.com