I. Introduction
The solar power plant may have one or many inverters present. Each inverter generates power which is measured in Kilo-Watt per hour. To monitor the amount of power generated by each generator it is mandatory for the supervisor to be present physically at the plant and he/she has to access each inverter individually to gather the details of the power generation. The proposed system aims in reducing the manual labor required for it by enabling remote monitoring [1] of all the inverters in the plant. Further values of the failsafe parameters present in the registers of the inverters are also uploaded to the database which gives the user the knowledge about the state of the machine. For this, a webpage is developed and the user is initially asked to register his plant and the inverter count. The inverters are connected in a daisy chain. The Raspberry pi[2] is programmed to access the data from the register of the inverters using the Modbus protocol. Along with the inverters, sensors are also connected to the Pi which measures temperature [3], wind speed[4] and solar irradiance[5]. The Pi then uploads the inverter information along with the sensor data to the database using a wi-fi module[6]. The user can then access all these details remotely with just the help of an internet connection.