There's precious little information - in English - on Chinese stocks. But there is a massive hydropower programme going on there, a staggering 170 Gigawatts of hydropower is to be added by 2020. I've been looking at Chinese stocks and have come up with these 3 so far which should have some exposure to that;

Chongqing Three Gorges
Guizhou Qianyuan Power
Sichuan Mianjiang Hydropower
The first two are on the Shanghai Stock Exchange and the last one is listed on the Shenzen Stock Exchange which is not fully live yet with ADVFN - watch this space for more Chinese stocks.