Most Japanese people know their blood type, but they joked that if you asked a foreigner their answer was "akai", which means red.

This has big implications for countries that have heavy reliance on solar energy. The extra hour of daylight during the evening peak hugely helps solar meet demand during the summer. I'm fine with killing the change over, but let's keep permanent summer time.

This reads like great satire but it's probably real in the current timeline.

Yes, I just based my estimate on the 880,000 kWhr production figure given for the plant

It's about the same amount of energy as you would get from a 400 kW solar plant, which would be a little less than 2 acres or about 8000 m2 in area.

This is a LinkedIn article I wrote three years ago that briefly tries to give that bigger picture view of why we need green hydrogen.

When you contemplate what it will take to replace the fossil fuel infrastructure that underpins our current standard of living with renewables, you realize that 80% of our energy is delivered as molecules and those storage and transport networks can't be entirely replaced with wires.

I was referring to hydrogen generated from renewables. Zero carbon means everything runs on wind & solar - you have to have a way to couple that to ALL sectors of the economy. Hydrogen is a way to do that in many sectors - you can't make steel, cement or plastic from batteries for example.

Hydrogen is a fine way to generate power, a fuel cell is as efficient as the most efficient combined cycle gas generator with zero emissions. But really it is just one tool in the toolbox for a zero carbon economy. Batteries and hydrogen have different strengths and weaknesses, you need both.

I met this chap at the top, it all felt a bit mythical.