The European Commission is spending a lot of energy on a wide initiative to incentive the use of renewable energy. Check the following website:
A good PDF with slide about the survey done by EuroBarometer about Europeans and Pollution
Finally, a 4 pages brochure about how Europe can change the way to produce and use energy!
About the installation and use of PV pannels and Solar heating, there are a lot of initiative in Italy. More information are available on pienosole.it
On this article, it’s shown that if you create a PV system: it will be at 0 (zero!) cost!
A good guide about “Conto Energia“ that is a Country fund that it will pay back for each kWh created with renewable sources is really usefull to understand how this process works.