Introduction To Solar PV Operation & Maintenance Types of Operations and Maintenance in Solar Power Plant O&M Approaches Preventive Maintenance Condition-based Maintenance Corrective Maintenance Common Tools & Equipment's Used in O&M of Solar plant Site Assessment Tools Basic Tools Needed for Installation Additional Tools to Consider Tools for Battery Systems Basic level Testing Methods & Techniques Testing by using Multimeter Testing by using  Clamp Meter IR inspection & Thermography Operation and Maintenance of Solar Module Inspection & Fault Identification for Solar panel Effect of Dust on PV Modules Effect of Shading on PV Modules Module Mismatch Physical Integrity observed in Solar Module Wet and Dry Cleaning of Solar module What to do when shading is observed Methods And Techniques For Shading Analysis by Solar Path finder Check PV Modules Performance by using a Thermographic Camera Check PV Modules Performance by using Multimeter & Clamp on Meter Operation and maintenance of Inverters Routine Inspection of Inverter Troubleshooting of Inverter-Basic Level Case 1 Inverter is not turning ON Troubleshooting of Inverter-Basic Level Case2 Output less than comparable system Troubleshooting of Inverter-Basic Level Case3 Lack of power output Troubleshooting of Inverter-Basic Level Case 4 No input voltage from the array Troubleshooting of Inverter - Advanced Level (Alarm beeps or Noise) Troubleshooting displayed warnings on Inverter screen Inverter displaying a Ground Fault Error Inverter displaying Load Problem Error Inverter displaying Software fault Operation and Maintenance of BOS Cables Maintenance Open-circuit fault Short-circuit fault Earth fault Protection Devices Effect of blown Fuse Basic Level- Cable Maintenance Checks must be performed during inspection & maintenance of Cables Maintenance of Protection Devices Maintenance of Charge Controllers Operation and Maintenance of Battery Batteries Maintenance How to check the fluid level How to Read a Hydrometer Cleaning the battery terminals Batteries Possible Problems and Preventive measures Operation and Maintenance of Solar Mounting Structure Mounting Structures Maintenance Monitoring of Photovoltaic Solar System Monitoring of Rooftop PV System Monitoring of Rooftop PV System at Module level Monitoring of Rooftop PV System at string level PV System Monitoring Monitoring of Rooftop PV System at inverter level Monitoring of Rooftop PV System at meter level Advance Level testing methods & techniques in Solar Power Plant Advanced Level Cable testing methods & techniques Continuity Test Insulation Test Protection Devices testing methods & techniques Earthing & Lightning Protection testing methods & techniques Batteries testing methods & techniques Checking State of Charge (SOC) Charge Controllers testing methods & techniques Testing procedure for series charge controllers Some of Possible Failure in Solar Plant, Causes and Actions