Solar Is Going To Change The World Much Faster Than Anyone Expects

[NickB79]

21. The reason for the recent solar drop was China flooding the market

And now, the prices have fallen so much that some of their major solar businesses are going bankrupt as they can no longer make a profit: http://money.cnn.com/2013/03/21/news/suntech-solar-bankruptcy/index.html

China's Suntech Power has put its largest subsidiary into bankruptcy, a casualty of rampant oversupply in the solar industry and punishing sanctions levied on Chinese panel producers.

The bankruptcy filing, made in Jiangsu Province, marks the end of a long downward spiral for Suntech's Wuxi subsidiary, once a darling of the solar industry and one of the world's largest panel producers.

Declining prices for solar products and global trade spats have taken a toll on the nascent solar industry in recent years, leading to the failure of several firms heavily dependent on government support.

So, I think it is VERY unlikely that we'll see "solar maintain 5 more years at current 23% rates per year price drops", short of some technological breakthrough.