In these days of rapid advancement in tech and R&D, there seems to always be a chance of some disruptive advancement come along and up the anti on established tech.
I happened to read this on ABC online about Hydrogen tech which has come out of Brisbane Australia.
It's looking good and a lot of interest from major manufacturers from Japan and Europe. http://www.abc.net.au/news/2018-08-...-csiro-game-changer-export-potential/10082514
AVZ Price at posting:
11.8¢ Sentiment: Hold Disclosure: Held