IARU R1 PRC responded recently to a European Commission Roadmap on the environmental impact of photovoltaics. The radio spectrum is an important finite natural resource which must be protected. While PV technology of itself is to be welcomed, the IARU submission pointed out the inherent problems of non-compliant installations, particularly the installation or retro-fitting of optimisers which can produce significant spectrum pollution for very limited efficiency increase.
The Roadmap and responses may be viewed on the Commission website here or on this website on the PRC Responses to Public and Other Consultations page.