To Greentech Media : ” two-thirds of all solar PV capacity in place worldwide has been installed since January 2011. Let’s put that into perspective. It took nearly four decades to install 50 gigawatts of PV capacity worldwide.”
” But in the last 2 1/2 years, the industry jumped from 50 gigawatts of PV capacity to just over 100 gigawatts. At the same time, global module prices have fallen 62 percent since January 2011. “
” Even more amazingly, the solar industry is on track to install another 100 gigawatts worldwide by 2015 — nearly doubling solar capacity in the next 2 1/2 years. “
The full article has a brilliant graph showing how solar is literally booming exponentially as prices are being slashed. I reported quite recently that they have been cut by no less than a factor 100 in the past few decades and that similar cuts are to be expected in the future.