Hydroelectric production plant consists of a water reservoir enclosed by a dam and an electricity production plant. After electricity is produced in the plant, it is transported via huge transmission lines to electric utility companies. Hydropower has various favorable features. For instance, it is very convenient as it responds quickly to fluctuations in demand. The amount of electricity can be controlled according to the daily use and economic growth of the economy (Lund, 2010).
These sources are unlimited, namely wind, sun, natural underground heat, waves and tides. Current conventional energy technologies such as coal, oil and gas, are known as fossil fuels. There are several inefficiencies associated with the usage of fossil fuels. The following methods referred to in this report generate electricity by usage of renewable sources only. 2.1.
Hydropower Hydropower is the power derived from the gravitational force of flowing water in rivers and lakes. The motion of the water is converted into mechanical energy which activates a turbine that turns on a generator to produce electricity. Conventional hydroelectric energy is generated by building a dam or artificial reservoir, but hydropower can also be captured by run-of-the-river facilities, which transform the kinetic energy in rivers or streams without needing to build large dams. Why use Hydropower? Hydropower is a clean source of energy as it does not produce air emissions or waste products because the water is not consumed during the electrical production and can still can be reused for other purposes.
Throughout history, new power sources were found which eventually became a hazard rather than a salvation. Many created pollution or put workers in high risk situations. However, modern technology has made possible to ability to create power through harnessing the wind while while releasing nothing harmful into the environment. While it may be questioned if wind turbines are the best option to avoid the negative effects of other power sources, wind power in fact is a superior power source that eliminates most of the consequences of traditional power generation. Economically, the use of wind turbines has many benefits after a substantial, initial investment.
Hydroelectric energy is becoming a common source of electricity production in the 21st century. Most dams that are being built have infrastructure that allows them to capture the energy from the water. The kinetic energy of moving water is then used by hydropower plants to give mechanical energy to turbines which in turn convert it to electrical energy through generators. 4. Geothermal Energy Within the Earth, there is a great deal of energy trapped inside molten magma.
“In addition to a sustainable fuel source, hydropower efforts produce a number of benefits, such as flood control, irrigation, and water supply.” (energy.gov). The efficiency of this type of power is almost unsurpassable since it can provide so many positive contributions to society. Not only does it make it efficient, it also makes hydropower undeniably reliable. Reliability is something that is rather uncommon when it comes to the current types of energy we have to settle for. Hydroelectricity is one of the cleanest and most efficient alternatives to the types of energy we use
It will never stop when there is a wind resource and seems to be a long lasting energy resource. In conclusion I think wind energy is the best energy resources to solve the world's pollution problem. It is because......... The advantages of using wind energy are as follows :- (a). Environmental protection and no need to get fossil fuels to generate electricity; (b).
Likewise in Laos, hydropower is seen as a means to provide an affordable, reliable and sustainable source of electricity supply in the promotion of economic, infrastructural and social development as well as attracting investment into the country. From this, the projected billions of dollars in earned from hydropower have is postulated to provide a vital source of income to a poor country like
Renewable energy is known to be a ‘cleaner’ form of energy as consumption of this kind of energy will not produce carbon based emission gases that contribute to global warming. Moreover, renewable energy sources are abundant in supply as they are self replenishing. However, there are still limitations associated with its use. The first being its cost. Renewable energy plants need to be substantially large, much larger than a fossil fuel plant, in size in order to supply the needed amount of energy9.
Renewable energy are considered to be important in improving the security of energy supplies by decreasing the dependence on fossil fuels and in reducing the emissions of greenhouse gases. The viability of isolated systems using renewable energy depends largely on regulations and stimulation measures. Renewable energy are the natural energy re that are inexhaustible, for example, wind, solar, geothermal, biomass, and small hydro generation. Among the renewable energy , small hydro and wind energy have the ability to complement each other. In a location with enough average wind speed and a suitable area for wind turbines, wind pumped storage system is a good combination with a hydro power plant.