Renewable energy technologies in brief

Recently, scientific research and development focus on nascent technology to solve the global energy crises, and results in innovative approaches for resource exploitation and sustainable disposition to improve energy generation and utilization. Hence, support better socio-economic performance and environmental management. In spite that, we are approaching a turning point and by the dawn of a new century, move to a revolutionized industry 4.0 era, and the urgency to review the renewable energy options (wind, solar, oceans, hurricanes, volcanoes etc.). We performed a survey on different renewable/clean energy technology/resources, their technical capabilities, and economic viability based on the energy returned on energy invested. Thus, the basic principle behind clean energy options is briefly described. The author explores the cost potential, challenges, and promise of these energy resources in the near future for sustainable energy solution. Last but not least, we draw conclusions on strategic reasons and importance for the continuous investment in environmentally friendly energy dispensation to develop what lies beyond the current energy scenario-globally.