1. Bloomberg: ‘Global trends in renewable energy investment’. Datapacks 2011–2016
2. IEC 61215: ‘Crystalline silicon terrestrial PV modules – design qualification and type approval’ 2006
3. IEC 61646: ‘Thin‐film terrestrial photovoltaic (PV) modules – design qualification and type approval’ 2013
4. IEC 60904‐3: ‘Photovoltaic devices – Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data’ 2015
5. Potential of photovoltaic systems in countries with high solar irradiation