eng Science and Education Publishing International Journal of Physics 2333-4576 2021-06-22 9 4 206 210 10.12691/ijp-9-4-3 IJP2021943 article Chamanshah Alamy 1 Mohammad Ali Sultani alisultani@kpu.edu.af 2 Electrical Power Engineering Department, Ghazni Technical University, Ghazni, Afghanistan Physics Department, Kabul Polytechnic University, Kabul, Afghanistan About 78% to 80% of power energy imported from neighboring countries in Afghanistan. Roughly 70% of the population don¡¯t have access to electricity, and 90% of those without electricity live in rural areas. reduction of energy resources, increasing use of fossil fuels and unrefined coal for home heating, cooking is a major problem in the world and even a serious challenge to environmental pollution specially for whom who lives in Afghanistan. In this research we have introduce new sources of energy, which is renewable energy, as an alternative to fossil energy. Nowadays, due to the gradual reduction of fossil energy sources and increase of air pollution and environmental damages has forced scientists to look for a sustainable and clean energy to be cheap and economically and be friendly with environment. This research shows that renewable energy is more appropriate compared to the fossil fuels in order to decrease air pollution and would be economically for people. http://pubs.sciepub.com/ijp/9/4/3/ijp-9-4-3.pdf energy renewable energy fossil fuels geothermal energy biomass energy