...or 5.81 trillion yen.

That's five times more than first estimated and the Japanese government has so far only allocated one trillion yen.

These rocketing costs are unlikely to stop there. This figure doesn't even include the costs of properly disposing of all the contaminated materials, continuing to deal with the Fukushima reactors and the contaminated water leaking into the Pacific Ocean, or adequate compensation for the 160,000 victims of the disaster who still haven't been treated fairly by Fukushima's owner TEPCO or the government.

Like everything to do with nuclear power, the honest answer (and so one you rarely hear) to the question "How much is this going to cost?" is "We'll tell you when we're finished."

"How much will it cost to build this nuclear reactor?" "We'll tell you when it's finished." (A new nuclear reactor being built at Flamanville in France is at least five years late and its cost has tripled to €8 billion.)

"How much will it cost to decommission these nuclear reactors?" "We'll tell you when it's finished." (The UK's Nuclear Decommissioning Authority can't predict the final cost of the country's own nuclear clean-up "amid fears total bill could exceed £100bn".)

So does anybody seriously believe 5.81 trillion yen will be the final clean up cost at Fukushima?

These are big numbers and hard to visualise. How many zeros are we talking about here? What could that money buy if it wasn't needed to clean up a preventable nuclear disaster? Take a look at our infographic...

Infographic - what compares to $58 billion

(Click the image for source information)

Imagine being able to eliminate global hunger for a whole year ($44 billion) and still have change left over to fund an Olympic games (London's 2012 games cost $13.7 billion). How about providing clean, sustainable wind-powered electricity for 11 million people?

This is what we're denied by the demands of the nuclear industry.