Here is a link to an interesting article in Yahoo news. French green groups are calling for a National lights out for five minutes at 19.55 on February 1st.
I will let you read it for yourself -
http://news.yahoo.com/s/afp/20070119...nclimatefrance Do you think that the Tenerife grid would cope with the drop at 19.55 and then the surge 5 mintes later or would there be absolute mayhem ?