This article describes some of the legal/financial aspects of “solar gardens”, or shared solar.

http://buyersguide.renewableenergyworld.com/the-interstate-renewable-energy-council-inc/blog/shared-solar-sunnyside-up-avoiding-the-pitfalls-of-securities-regulation.html

An article about the rapid roof top solar implementation in Hawaii and the blowback from the utility company.

http://www.nytimes.com/2015/04/19/business/energy-environment/solar-power-battle-puts-hawaii-at-forefront-of-worldwide-changes.html?_r=0