Renewable Energy Sources

renewable energy sourcesSun

The sun is one of the major renewable energy sources. Its power is harnessed by photovoltaic solar power plants and also solar panels made for home use. Its usage is on a continuous global increase as new solar plants are being built and more households choose to add solar panels to their homes as a way to lower their energy costs. As more technology is being developed, and as more money is put into the development of this energy, the cost of solar power is becoming increasingly appealing to low income nations as well as developed nations that are looking for ways to diversify their energy production. You can find out more interesting solar energy facts by visiting


Wind is transformed into energy through the help of wind turbines than can be compared to giant wind mills. Wind turbines can be used alone or they can be connected to a power grid or photovoltaic power plant. The various atmospheric patterns and air currents determine the potential of a specific area in terms of placement of wind turbines. The most important factor though, is the prevailing wind speed, which is a central element in projecting and estimating the turbine’s performance. Among a few interesting wind energy facts is the following example on how much energy savings wind energy can bring. According to the International Council for Local Environmental Initiatives, a successful project is the one in Spirit Lake, Iowa where a 250-kW turbine was installed near the local elementary school. The turbine provides around 350,000 kWh of electricity per year, more than is necessary for the 53,000-square-foot school. Not only did the excess electricity earn them around $25,000 in its first five years of operation, but that excess electricity can be stored and used when the wind does not blow at speeds that would generate wind power.


Water is the most used renewable resource in producing electricity. About 15% of the world’s electricity production comes from hydroelectrical power. It does require investment in building dams and redirecting rivers in order to harness the hydropower and convert it into electricity. The economic cost of producing hydroelectricity runs fairly steady as is not susceptible to supply shocks and it does not require any imports, and each plant has a fairly extended life span ranging from 50 to 100 years.