I like your train of thought here...
Blockchain being the missing link for PAS technology to really take off makes a lot of sense in many ways. I'm still trying to wrap my head around blockchain a little, but I feel like it digitizes the electricity saved and allows Fasync to apply energy savings transactionaly, instead of having to physically deal with the power and sell it back to the power company or someone else.
Honestly, I could be way off in my thinking, but my understanding of blockchain and PAS is still a work in progress.
I'm sure PRs next week will help to clear things up. :) BoL