Climate change: Is ‘blue hydrogen’ Japan’s answer to coal?

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In 2010, about 1/3 of Japan's electricity came from nuclear power, and there were plans to build a lot more. But then the 2011 Fukushima nuclear disaster hit, and all Japan's nuclear power plants were shut down.

6-min readIt's a glorious autumn afternoon and I'm standing on a hillside looking out over Tokyo Bay. Beside me is Takao Saiki, a usually mild-mannered gentleman in his 70s.The cause of his distress is a giant construction site blocking our view across the bay - a 1.3-gigawatt coal-fired power station in the making.

Instead of closing the old coal plants and switching to renewables, Japan's answer is to switch to burning hydrogen or ammonia. It's another lovely sunny day and I'm in downtown Tokyo, at a shiny new hydrogen filling station. Standing on the forecourt is a sleek new Toyota Mirai. This is a big luxury car, about the size of a large Lexus.

Not true, says Hisashi Nakai, the head of Toyota's public affairs division. He says the company's vision for fuel cells goes much further than just cars. Make hydrogen from water using renewable energy and you get "green hydrogen". The problem is green hydrogen is really expensive.

 

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