I expect as electricity gets more expensive, the demand for "grid freedom" and associated devices (solar panels, fuels cells, etc) will continue to grow.
Here in the Northeast U.S., we pay around 10-12 cents per KW, which is the among the highest in the country.
However, I suspect that this is probably quite low by Euro standards, much like gasoline (petrol) is here.
[This message has been edited by CTwireman (edited 12-05-2002).]