Clean tech costs have fallen 41–94% over the past 7 years. Wind and solar accounted for two-thirds of new energy installations in the US in 2015.
A new report from the US Department of Energy paints a bright picture for our prospects to cut carbon pollution and prevent the most dangerous levels of climate change. The report looked at recent changes in costs and deployment of five key clean energy technologies: wind, residential solar, utility-scale solar, batteries, and LED bulbs. For each technology, costs fell between 41% and 94% from 2008 to 2015.
Source: Guardian Environment