Solar thermal use in Spain varies greatly and includes almost every type of system. In the 2005 – 2011 period promotion of solar cooling was done through demonstration projects. At present the principal innovation is being introduced in the large systems area.
Recently it has been approved, under the National Scientific Research, Development and Technological Innovation Plan (National R&D&I plan), a large R&D Project on Smart Cities, taking into account mains topics on solar thermal and solar buildings.
This cooperative project gathers public and private entities, such as research centres and large companies, around the objective of developing systems that cut cities' energy demand to a high extent, new systems of distributed micro and mini-generation with embedded renewable energies, and holistic control innovative systems (business intelligent).
These R&D activities will be developed and implemented in a pilot district to show technical and economic viability of this kind of initiative and to act as a demonstration project.