Currently, almost 80% of the world energy is still provided by fossil fuels while energy demand is increasing in all regions of the world. In the face of climate change, environmental destruction and the rising cost of fossil resources, societies are driven to adapt and achieve sustainability. Renewable sources along with high energy efficiency are a compelling alternative.
There are many consumers who would like to have the ability to consume renewable energy, but unfortunately cannot afford buying production assets. Rather than requiring electricity consumers to set up a solar roof, consumers should have the option to purchase renewable energy from their solar-powered neighbors who have surpluses.