Solar energy
The Sun is our closest star, and it is the source of almost all energy on Earth. It is a resource available to everyone. Sun’s ray emission is the reason for constant recovery of wind power, sea currents, waves and thermal ocean gradient.
Wind power
Wind power is kinetic energy of the flowing air. The amount of energy depends of the wind speed, and in minor degree of air density, which is affected by temperature, air pressure and altitude.
Water power
Water power derived from solar energy which is the cause of fluid motion in the nature, and it gives the energy to the watercourses (rivers and streams) and waves. At the moment, there are several aspects for using water power.
Biomass energy
All green plants have the ability to transform sunlight energy into chemical energy using a process called photosynthesis, therefore storing it in a form of chemical bonds. Than plants work as solar collectors.