SunEdison Inc . up ~9% following news its “yieldco” subsidiary has filed for an initial public offering.
TerraForm Power will own and operate clean-power plants and other assets acquired from SunEdison .
Several solar companies are looking into bundling existing solar-power plants and projects into subsidiaries, known in the industry as “yieldcos.”
Revenues would flow from long-term, predictable power purchase agreements with utilities, and shares of the yieldcos would trade in stock exchanges just like any stock, providing liquidity and transparency.
(source: http://www.marketwatch.com/story/sunedison-up-9-on-yieldco-ipo-news-2014-05-29?siteid=yhoof2 )