An Overview of Energy Resources and Their Classification

Energy is considered as one of the most fundamental element for the country’s economic development. From thousands of years, energy has been utilized in many ways in order to carry out various activities by human beings. The energy can be classified in many ways depending upon the different factors such as availability, usage and processing etc. Among the all types of the energy resources, it can be broadly classified into renewable and non-renewable energy resources. Around the world, maximum energy is generated through the conventional sources like coal etc. The major drawback of the nonrenewable energy resources is unavailability and it generates various forms of the pollution. Renewable energy resources (i.e., wind, solar energy and ocean energy etc.) are considered one of the best and promising alternate of the conventional resources. These resources are available in nature in unlimited quantity and doesn’t generate any kind of pollution. This review paper highlighted the various types of the energy resources and their associated aspects. The utilization of the renewable energy resources by various sectors can help to mitigate the pollutant concentration significantly and promote the energy security