As we know that in our day today life, we require energy to perform tasks. As it has been quoted that “Energy can neither be created nor be destroyed but it can change from one form to another” that is the principle of conservation of energy. The term Harvesting means the activity of taking or collecting a useful substance likewise Energy Harvesting means to collect the waste power and bring it back to the system. As per the growing energy demands in the world there is so much of need to harvest the energy for the future generation to survive and maintain sustainability. Sustainability is a core principle driving the adoption of solar energy worldwide. This study explores how solar power contributes to sustainability by reducing environmental impacts, promoting energy independence, and fostering economic growth. Solar energy represents a momentous solution to the world’s growing energy demands due to its abundance, renewability, and environmental benefits. This research work highlights some of the ongoing exploration and researches in solar energy technology. Also a comparative analysis has been made on solar energy harvesting method and effecting parameters are compared and discussed which is more focused on the cost effectiveness, eco-friendly, neutral carbon emission which will promote sustainable future of our natural resources.