Cables and connectors observed to be degraded. One inverter found to be non- operational. It is recommended to (i) improve cleaning activity, (ii) replace faulty components and restore inverter functionality (iii) add earthing connections, (iv) replace damaged modules, (v) retrofit the mounting structure, (vi) re-sort modules, and (vii) install a weather station or at least an irradiation sensor on the module plane. The estimated production boost expected by the retrofitting actions lies between 10.5% and 35%.
The system performance was affected by soiling loss of 7.8%, estimated from IV curve measurements. Modules on Block B are severely soiled due to nearby industries. IR analysis reveals hot cells from soiling on modules from Block B.