Clean Technology in China -- a Difficult Balance Between Cooperation and Competition

Executives of ECOtality Inc. believed in 2009 that their battery charging technology would be a winner when plug-in electric vehicles began to hit the market this year. But with debts running far ahead of revenue, the San Francisco firm needed immediate financial support to stay in the game.

The help came from China, through a $2 million investment that year by a Chinese company. In return, the Chinese company received the rights to make and sell ECOtality's chargers in its country and in other Asian markets. The relationship is one example of the complex linkage between American clean energy technology and Chinese capital and markets that will be a subject in this week's U.S.-China summit in Washington led by President Obama and Chinese President Hu Jintao.