Get paid for generating solar energy
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.