Hello Thank you for your comment

Actually there is a lot of products or systems out there in the market, for example Aquaponics systems  is a sustainable method of raising both fish and vegetables.  Aquaponics is one of the greenest ways to grow food. Since the only energy it requires is electrical, you can easily run off of solar, wind or hydroelectric power sources, and the Greencoin project goal is connecting this companies directly with buyers who can be individuals or communities, using Blockchain and smart contracts,

Also with blockchain technology  Greencoin it will create an effective incentive model building a strong rewards system to reward all participants that join the ecosystem, in that way we will achieve a faster expansion.