Repower Systems AG which yesterday closed up over 9% to EUR 33.20 is trading at a 3 year high.

One of the reasons is that Areva has bought 21.1% of Repower's shares. What's fascinating is that France-based Areva SA is the world's biggest maker of nuclear reactors, turning over 11 billion euros last year. Repower covers all parts of the wind industry from the development, licensing, production and sale of turbines and has a 10% market share in Germany. So much for the wind and nuclear industry being at loggarheads with each other!

The strategy for Areva might be to zero in on what many think is a sleeping giant - French wind power. Repower for it's part, gets a rich partner and a huge distribution network.