Go Greener Tips

The worldwide battle against climate alter has heartened both developed and developing nations to lessen carbon dioxide emission. Signatories of the Kyoto Protocol lead the world to emission reduction acts, one of which is implementing research and development on renewable energy (see solar charger reviews). Here are six types of renewable energy sources that are being considered to power the globe in the nearest future.

1. Hydroelectric Power

Hydropower is the largest source of renewable energy. Its producing capacity amounts to 77,000 megawatts. Water coming from rivers and waterfalls are released through turbines to generate energy. Although the technology is non-pollutant, it can possibly harm marine wildlife as it may alter the amount of water. Other than that, hydropower is also highly expensive and is likely to take a long time to install.

2. Biomass

The International Energy Agency reports that 11% of the global’s renewable energy is obtained from biomass. The technology produces 7,000 megawatts of renewable energy. Biomass is taken from industrial processing of forestry and wood products, agriculture, construction and solid waste. These biodegradable materials are converted to gas by burning it in a gas turbine. In the United States, mill implementations are the basic source of biomass energy. It is the best alternative to coal as it generates less sulfur dioxide.

3. Geothermal Energy

Amidst the six types of renewable energy sources, geothermal is one of the most cost-effective and safe. In the United States alone, it produces up to 2,800 megawatts of energy every year which is approximately 2% of the total energy use in the country. Geothermal energy is generated from naturally occurring steam under the Earth’s surface. Steam is extracted to power a turbine which in turn powers an electric generator. The problem with geothermal energy is the difficulty to find viable land sites. However, the same technology is employed on a smaller scale to power building heaters.

4. Wind Energy

Wind energy generates 2,500 megawatts of energy that contains 1% of the total energy consumption in the United States. The wind rotates the blade that is fixed to a main shaft where a generator is installed. Energy capacity is identified by the size of turbine. Small wind turbines are commonly used to power households, farms and ranches in the country. The downside to this technology is the noise that it produces and its relatively expensive installation cost.

5. Photovoltaic Cells

Photovoltaic cell is one among the six kinds of renewable energy sources that does not need high maintenance. It basically produces electricity by using microchip-like materials that absorbs sunlight. This frees the electrons from their atoms and allows them to produce electricity. PV cells are generally safe and provide less to none pollution. There are some popular backpacks that use this technology, see solar backpack reviews for details.

6. Solar Thermal Systems

Solar thermal systems, as the name implies, also derive energy from sunlight. The system uses solar collectors to absorb solar radiation that will then be used to heat water or air that will produce steam used to operate a turbine. The turbine will then power a generator.

Federal and state government support citizens to install solar energy at home or in the workplace by awarding income tax credits. The same is being done for the other six types of renewable energy sources.

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