“…Regarding system promotion, installation and maintenance, lack of skilled technicians or knowledge transfer between PV producers and fitters/users is pointed out; system failures thereby often result from unsuitable design, improper installation, use of unreliable components or poor maintenance [15,27,125,126]. Besides, users are also often left on their own with their system after the initial installation, without any real after-sales service structure or proper training [52]. Technology-user interaction is therefore addressed as a critical point in the literature [15,27,125,126]: maintaining system proper performances and reliability in remote areas requires user operation training and significant understanding of the very specific characteristics of the system, but still appears to be left out.…”