It is measured in watts-hour or its multiples: kilowatt-hour kWh , megawatt-hour MWh and gigawatt-hour GWh. The energy model is the priority given by a country to a certain electricity generation system. Brazil decided that most of the electricity would be generated by hydroelectric power plants. Such power plants are not pollutant because they are water-driven. A hydroelectric power plant can be defined as a set of buildings and equipment whose purpose is to generate electricity by using the hydraulic potential existing in rivers.
Hydroelectric generation is associated to the river flow, that is, the amount of water available over a certain time period and at the height of its fall. The higher its fall volumes, the higher its electricity-generating potential. River flows depend on their geological make up, such as width, inclination, soil type, obstacles and falls. They are also determined by the amount of rainfall that feeds them, which makes their electricity production potential vary significantly over time.
The hydraulic potential is established by the hydraulic flow and the concentration of different levels existing along river courses. They can be natural, when the difference in levels is concentrated in a waterfall; or man-made by means of a dam, when small level differences are concentrated at the height of the dam or through the rerouting of rivers from their natural courses, the small level differences being concentrated on such reroutes.
A hydroelectric power plant basically comprises the following parts: dam, water intake and adduction systems, power house, and systems to return the water to the river's natural bed. Each part is a set of buildings and facilities harmoniously designed to operate together. At hydroelectric power plants, the water leaving the reservoir is conducted at high pressures through huge pipes up to the power house, where the turbines and electricity generators are installed. The turbine is made up of a series of blades connected to an axis, which on its turn is connected to the generator.
The water pressure causes the turbine axis to turn creating an electromagnetic field within the generator, which then generates electricity. In other words, the hydraulic power is transformed into mechanical power when the water goes through the turbine, causing the latter to turn and, in the generator, which also turns mechanically connected to the turbine, the mechanical power is then transformed into electric power.
What are the advantages brought on by the construction of a hydroelectric power plant? Building a hydroelectric power plant brings on the following benefits: - Renewable energy; - Low megawatt cost; - Clean energy, pollutant-free; - Job generation; - Economic and sustainable development; - It increases the liability of electrical systems.
What are the disadvantages brought on by the construction of a hydroelectric power plant? Building a hydroelectric power plant brings on the following disadvantages: - Expropriation of productive land by the flooding; - Environmental impacts, such as the loss of land animals and plants; - Social impacts, such as the relocation of residents and expropriation of land; - Interference in fish migration; - Alterations to river animal life; - Loss of historic and cultural heritage, besides alterations to economic activities and traditional use of the land.
Does Itaipu pay to use Brazilian and Paraguayan waters? Itaipu pays royalties for the use of water resources belonging to both countries. The payment is established in Annex C of the Itaipu Treaty. The royalties are applied to improve the population's quality of life, in education, health, housing and sewer systems. Font Size. However, that amount incorporates the financial charges incurred during the construction until each generator unit went online.
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And then, you have consumption. Energy consumption is measuring how much electricity you are using over a period of time. So when we are talking energy, generation is the amount of electricity actually produced by a wind, solar or coal power station over a period of time. These terms are also used when describing electricity consumed by a household, a company or Australia as a whole.
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