Looks like all that stolen technology can't save the company from making bad business decisions. Solar and other green tech intellectual property has been among the highest priorities for Chinese hackers in recent years.
Here's one egregious example of China stealing clean technology from the US (sorry for the paywall, but it was the best source): http://online.wsj.com/article/SB1000142405311190337400457657...
There are a bunch of APT groups with tasking to steal IP related to clean tech, solar included.