I found the following conference paper abstract that seems to point out that European activities on Central Solar Heating seems to wake up. http://publications.lib.chalmers.se/cpl/record/index.xsql?pubid=64021
It will be interesting to follow this European Platform:
http://esttp.org/cms/front_content.php
I will try to follow up on it.
Posted by (Al)Fred Heller