If you want to see failed renewable energy you only need look at completed projects and compare them with predicted outcomes. The French announcement to pursue nuclear is telling, especially given the problems it has had with maintenance and build times. The only reason France is considering renewables is because it cannot build nuclear reactors quickly enough. Yet in Australia, the moronic concept of green hydrogen is still considered seriously.

Well Baygon, I watched that link and indeed it was a fairy tale.
Jokes aside it naturally built on the original mistake made by many
scientists that has become sculptured into granite.

The mistake is they made a major error when calculating the temperature
sensitivity to atmospheric co2.
I have a link to a paper by Kauppenin & P Malmi.

http://arxiv.org/pdf/1907.00165.pdf

Kauppenin was a member of the IPCC so he is not an unknown in that field.
The group at Kobe Uni in Japan is also involved.
I will have to find the link again.
Some info here also on the Japanese.
http://tinyurl.com/2tc7kz4h

The crux of the matter is the temperature rise caused by the Sun and
the other cycles is the major cause of the temperature rise and that
caused by coal etc is only a small cause of the rise in temperature.
It is just that the current cycle coincided with the start of the
industrial revolution and so an easy mistake was made.

The current problem is it is "settled science" which if you read
Ian PLimers book Green Murder explains how it has all become
untouchable and indeed a new religion, and so is infallible.