I. Introduction
Internet of Things (IoT) is one of the latest revolutions in the electronic industry. The goal is to use wired or wireless communication protocols so as to connect all sensors and devices to the common network of the internet. Users can access data as well as control equipment from anywhere, as long as they are connected to an active internet connection. IoT allows the physical world to be integrated directly into system programs, improving productivity, accuracy and cost-effectiveness without the need for human intervention [2]. The Internet of Things consists of a variety of devices with sensing, recognizing, communication, and networking capabilities [5]. Nowadays, sophisticated IoT sensors are present in all electrical and electronic devices and transmit data to the cloud. The operation and maintenance management is promptly notified for action by a computer expert system that continuously monitors the whole network [6]. IoT has gained attention in various fields, such as home appliances, home automation, healthcare, smart cars, smart cities and security [3]. But recently it has been used in the field of renewable energy domain like solar and wind. Solar Power is a clean, abundant and easy-to-use energy resource. Despite the uncertainty, solar energy is obtaining popularity due to technological advances and declining costs. This energy resource is getting more and more dependable and in a few years from now, it may replace conventional sources. Changes in temperature, solar radiation, weather conditions and many other factors can affect the power generation capacity of solar photovoltaic (PV) installations. Thus, monitoring such installations is crucial [4]. Managing the generation of solar photovoltaic systems using Internet of Things (IoT) technology can significantly improve the normal operation, maintenance and monitoring of power plants. Solar power plant automation and intelligent control technology will therefore be a responsible future path for significant upgrades to solar power plants and photovoltaic power grids. IoT-based wireless systems have been chosen to avoid the risks associated with wired systems [5] and to meet future requirements where all devices are smart, automated and connected to the Internet. Inspecting damaged solar panels, faulty connections, panel-level dust that reduces efficiency, and other factors that affect the presentation of a solar power plant helps restore the valuable energy produced by power plants. Automatic Internet of Things systems [1] for solar power plants allow control of power from anywhere using the internet.