Hacker News Reader

> A lot of cheap solar energy, from the best location.

I recommend that you watch the "Planet of the Humans" documentary to understand why there is no cheap solar energy, no so-called "green" energies: https://www.youtube.com/watch?v=Zk11vI-7czE

So there will never be any "green" planes, no matter if they use hydrogen or kerosen. Since the minimum required amount of energy to fly from point A to point B with N passengers will always be the same.

View on HN

Michele Moore movies optimize for publicity, not scientific accuracy.

There are some truths in the movie (e.g. biomass would not work), but many times he is plain wrong. E.g. 8% solar efficiency, when my neighbours installed 21% one and 15% is common on utility scale. No solar panel on the market has just 10 years+ lifespan, many come with 20+ year warranty and could still produce energy afterwards with tiny decrease in efficiency.

Reply on news.ycombinator.com