Grid parity in 2016 will result in a very rapid shift in power infrastructure. If you could heat and electrify your house and run your car more cheaply why wouldn't you do it? The market will kill carbon energy faster than government regulation. It is government stimulation, not regulation that is the leverage point.
The Coming Solar Power Boom: Charts Tell The Story, Grid Parity In 2 Years
Fossil fuel follies: Massive subsidies underpin oil, coal exploration
