Renewable Energy Sources

The Age of Renewable Energy

Alternative sources of energy are everywhere . In fact , the world has an unlimited supply of alternative energy , otherwise known as renewable energy . Because of increased awareness of environmental threats brought about by fossil fuel use , there is an increase in the demand for renewable energy sources . It is believed that fossil fuels , which significantly contribute to greenhouse gas emissions , are to blame for the phenomenon that is global warming . Some of the most known and more promising renewable energy sources are solar energy , wind energy biofuel

, hydroelectric and nuclear energy . All of these energy sources are environment-friendly and each type has a good side and a bad side

Solar Energy

Solar energy is the most abundant source of energy in the planet and the best part is that solar energy is virtually free . Unlike fossil fuels , supply and demand will not be an issue with solar energy since it is present in any part of the world . Once the sun 's energy is harnesses the only expense associated with it is maintenance . Basically , there are two ways to harness solar energy . One is through photovoltaic systems and the other is through thermal solar systems . Solar energy can be used to run simple home appliances such as water heaters and gadgets such as calculators , wristwatches , mobile phone chargers , toys , etc . There are households rely mostly on solar energy for tall their electricity needs Solar energy is a clean energy source . This means that harnessing solar energy...