Wind energy is the form of renewable energy that converts the wind energy from the wind currents into energy that can be useful to man. This is done using windmills (for mechanical energy), wind turbines (for electricity), sails (to direct ships) and wind pumps (for drainage or water pumping).
A wind turbine converts the kinetic energy given off by the wind current into electrical energy.
Hydroelectric energy is the form of renewable energy that converts the gravitational energy of falling or flowing water into electrical energy. Hydroelectric energy is the most popular form of kinetic energy in the world, generating around sixteen percent of the globe’s electricity and is used in one hundred and fifty countries. The general cost of hydroelectricity is relatively low, giving it a competitive edge in the market of renewable energy. However the damn that are required for hydroelectric energy can often damage the surrounding wildlife and ecosystems.
The majority of hydroelectricity is sourced from turbines driven by the potential energy of dammed or flowing water. The amount of power that is able to be extracted from the water depends on the difference of height between the turbine and the point where the water is falling or flowing.
The majority of South Africa’s electricity is sourced from fossil fuels such as Coal and Uranium. These sources are not not renewable and are damaging towards the environment. Due to the fact that fossil fuels are ...
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...er issues that are not natural include the lack of experience with renewable energy products. In addition to these barriers, the cost of the required necessities to make renewable energy a possibility go beyond the country’s funding.
The Barrier of Finance plays a large role in the option of Renewable energy. The factors of an uncompetitive market and transactional costs may prevent renewable energy from becoming an option for South Africa
Pegels, Anna. "Renewable energy in South Africa: Potentials, barriers and options for support." Energy policy 38.9 (2010): 4945-4954.
Owen, Anthony D. "Renewable energy: Externality costs as market barriers." Energy policy 34.5 (2006): 632-642.
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