Energy Source

  • Renewable Energy Sources
  1. Solar Power
  2. Hydroelectric Power
  3. Wind Power
  • Non-Renewable Energy Sources
  1. Nuclear Power
  2. Fossil Fuel

Note that we always compare the use of energy sources in terms of energy conversion efficiency, cost and its environmental impart.
Source Renewable Efficiency Cost Environmental Impact
Solar Power Yes High efficiency when there is daylight and minimal cloud cover. Solar panel cost is high but cost of fuel is free. Clean energy, but requires large areas to be cleared for solar panel installation.
Hydroelectric Power Yes Most efficient energy source Cost of constructing and maintaining dam and power plant is high. Clean energy, but dam construction disrupts ecosystems.
Wind Power Yes Efficiency depends on wind direction and speed Cost falling with improving technology;
Wind energy is free and costs are mainly due to maintenance.		 Clean energy, but requires large open areas and possible noise pollution.
Nuclear Power No High efficiency Additional cost incurred for disposal of radioactive waste. Waste produced can contaminate groundwater and sources of surface water.
Fossil Fuels No Most countries have well-established fossil fuel power plants. Cost rising due to declining supplies and rising demands. Mining disrupts ecosystems;
Burning fossil fuels results in air pollution.
A very interesting video about harnessing kinetic energy from soccer ball! Check it out!
Excel@Physics