First admission: I work for the IEC, the organization that supports wattwatt.

Second admission: I work in communications. 

But I couldn't help sharing this from Australia thanks to my colleague Pierre de Ruvo who works for one of IEC's certification schemes. He pointed out an initiative from the  Australian Governement where residents can claim grants and receive rebates for investments in solar power in their homes.

To quote the publication: "The Solar Homes and Communities Plan encourages the long-term use of photovoltaic technology to generate electricity from sunlight and to increase the use of renewable energy in Australia.
The key objectives of the program are to:
• reduce greenhouse emissions;
• assist in the development of the Australian photovoltaic industry; and
• increase public awareness of renewable energy.
The program provides rebates to homeowners who install photovoltaic power systems on their principal place of residence, and grants to community organisations that install photovoltaic power systems for educational purposes."

Oh, and did I mention that they use IEC Standards (IEC 61215 or IEC 61646) and certification to judge eligibility? Well now I have.  I will post a wikiwatt to keep the links.