The price of solar panel installations has dropped in Spain and demand has soared.acilo / Getty Images/iStockphoto The sun is shining brighter than ever in Spain, and for good reason: the Plan for the Recovery, Transformation and Resilience of the Spanish Economy includes significant subsidies for homes improving their energy efficiency, and it will not only be multi-owned apartment blocks that are eligible, but also stand-alone homes installing photovoltaic solar panels, according to the Transportation, Mobility and Urban Agenda Ministry. Moreover, the number of homeowners who have installed...