Solar Energy Marketplaces
Example
Yeloha
URL = http://www.yeloha.com/
"Yeloha is ... a network that allows for the sharing of solar energy between “sun hosts” and “sun partners.” For the 80% of Americans who would like to install solar panels on their roofs can’t afford to, Yeloha provides them with access to purchase solar energy generated by their neighbors." (http://www.web-strategist.com/blog/2015/04/23/how-the-collaborative-economy-is-impacting-the-energy-sector/)