about wind farms in Japan now

http://www.renewableenergyworld.com/rea/news/article/2011/04/nuclear-woes-boost-japanese-wind-but-supply-remains-limited?cmpid=WNL-Wednesday-April13-2011

What is interesting is that they are purposely not using more than 5% of wind power. Seeing as I do not trust them to do anything necessarily honestly, but of course they could have true engineering reasons to do this...I wonder why they can't bypass the grid and go directly into certain areas...why do things have to be centralized? Why not have certain facilities or towns or something that gets this directly? I know about irregular loads etc., which might be what they are trying to avoid. mg