RE: Green energy managed by the blockchain
This project has the potential to go viral. The first reason is marketing - green energy idea markets itself. The second reason is the way the project is being run. the project is not only based on a solid idea but their running strategy is very sound as well.
They are basically incentivizing people to start using green energy. Not just the people (consumers) either but the suppliers will too have an incentive to find consumers that are going for pro-green energy market. Obviously the market has to be mutually beneficial for both the consumer and the supplier for it to thrive.
There is far too much to be read before I making solid decisions but from the first look the idea is pretty solid. The website is definitely worth taking a look and decide whether you want to go through their whitepaper or not.