Solarcoin

This cryptocurrency based project reward people with the solarcoin for generating clean energy using solar. One megawatt hour of generation is with one solarcoin which can be used as a mean of exchange on cryptocurrency exchange platform and other relevant sites. All you need to do after installing your solar is to find a solarcoin affiliate who would verify and document your installations and then ensures that you get paid.

Looks like a very good project to make the world adopt clean energy.