The United Kingdom ranks last for solar heating installations among its european peer group. Germany has installed twenty times more solar heating per head of population, and Austria sixty times more, figures from the Euroobserv'er 2011 Barometer show.
The chart above shows the amount of solar heating panels installed in each of the major economies in Europe per head of population. The wide range is only partly driven by climate, with many northern european countries scoring among those with the highest installed base.
A spreadsheet with sources, data for all European countries and calculations can be found here.