Here is another article that is almost two years old but still holds true. This is from Mother Jones. A good read.
“A couple of years ago, Steven Weissman, an energy lawyer at the University of California-Berkeley, started to shop around for solar panels for his house. It seemed like an environmental no-brainer. For zero down, leading residential provider SolarCity would install panels on his roof. The company would own the equipment, and he’d buy the power it produces for less than he had been paying his electric utility. Save money, fight climate change. Sounds like a deal.
“But while reading the contract, Weissman discovered the fine print that helps make that deal possible: SolarCity would also retain ownership of his system’s renewable energy credits. It’s the kind of detail your average solar customer wouldn’t notice or maybe care about. But to Weissman, it was an unexpected letdown.
“To understand his hang-up, you need a bit of Electricity 101. If you have solar panels on your roof, the electrons they produce flow across the electric grid like water, following a path of least resistance. As they whiz around, electrons are impossible to track and look identical, whether they’re coming from solar panels, a coal plant, or whatever. But there is value in keeping tabs on the renewable ones, so energy wonks came up with renewable energy credits (RECs), a tradable financial instrument that corresponds to a certain amount of energy produced by a certain renewable source like solar or wind.”
The complete article can be found here: