Thermal power Advantages and disadvantages of hydroelectric power

Firepower: Advantages: mature technology, low cost at present. Low requirements for geographical environment.

Disadvantages: polluting, sustainable development.

The outlook is bleak. High energy consumption and low efficiency.

Hydraulics: Advantages: Long history, low cost in the later stage. There is no pollution, water energy is renewable, and the total amount of water energy is large.

Disadvantages: investment in fixed assets.

For example, southwest China is extremely rich in water resources, but the natural environment is harsh and the construction is difficult, so it has never been able to be utilized.

a) Thermal power generation:

Pros:1The technology is mature, and the construction period of thermal power generation is shorter than that of other power generation methods, and it does not require high technology and equipment, and the investment is small.

2.The site selection is easy, the land area is small, the investment is small, the construction period is short, and the geographical environment requirements are low.

Cons: 1The fuel used in thermal power plants, such as coal and oil, cannot be renewable, and it is a pity to burn it out as fuel. It will cause environmental pollution. The increasing amount of acid gas emitted by direct combustion of coal has increased the amount of acid rain in many parts of China.

2.The cost of power generation is high and the consumption is high. Steam turbines that generate electricity usually use water as the cooling medium, and a 1000MW thermal power plant consumes about 100,000 tons of water per day. The country consumes 50 million tons of standard coal every year.

b) Hydroelectric power:

Pros:1Green environmental protection, save primary energy. Hydropower is an inexhaustible, renewable and clean source. Low environmental impact.

2.In addition to providing cheap electricity, it can control flooding, provide irrigation water, improve river navigation, and more.

Cons: 1The construction of the plant takes too long a time, the cost of technology is high, and the erosion of the water below the dam is intensified, which has a greater impact on the changes in the river and on the flora and fauna.

2.Because it is located in natural rivers or lakes and marshes, it is susceptible to feng shui disasters and affects other water conservancy projects. Electricity output is susceptible to weather, drought and rainfall.

Advantages of thermal power generation: mature technology and stable operation.

Disadvantages of thermal power generation: environmental pollution, resource depletion.

Advantages of hydropower: pollution-free, clean, renewable.

Disadvantages of hydroelectric power: unstable and affecting the ecological environment.

The main advantage of hydroelectric power is that the cost of fuel can be excluded. The cost of operating a hydropower plant is virtually unaffected by fossil fuels such as oil, gas and coal. Since hydropower does not require fuel, fuel is not important for such power plants.

Hydroelectric power stations have a longer economic lifespan than fuel-burning power plants, and there are a number of hydroelectric power stations in the world that were built 50,100 years ago that are still in operation. Since hydroelectric power stations are mostly self-operated and require fewer workers under normal operating conditions, the cost of operating labor for such power stations is often low, and if hydroelectric power stations are built on such foundations, it is possible to reduce the cost of dam construction relatively and add useful dividends to the operating expenses of the dam. Calculations show that China's Three Gorges Dam will be able to recoup the investment in dam construction after 5 to 8 years of power generation.

Firepower: Advantages: mature technology, low cost at present. Low requirements for geographical environment.

Disadvantages: High pollution, bleak prospects for sustainable development. High energy consumption and low efficiency.

Hydraulics: Advantages: Long history, low cost in the later stage. There is no pollution, water energy is renewable, and the total amount of water energy is large.

Disadvantages: large investment in fixed assets, high requirements for geographical environment, for example, southwest China is extremely rich in water resources, but the natural environment is harsh, construction is difficult, and it has always been unable to utilize.

Hello! Glad to answer for you, the advantages and disadvantages of thermal power generation 1The advantages of thermal power generation, completely pollution-free natural energy power generation, large power generation, not affected by climate and environmental factors.

2.The disadvantage of thermal power generation is that for areas with high site selection requirements and perennial wind energy supply, the power generation is very small, and the maintenance is not convenient, so it is difficult to provide electricity on a large scale. It causes great pollution to the environment and has a high cost.

1. Hydroelectric power.

The basic principle of hydropower is to use the water level difference to cooperate with the hydrogenerator to generate electricity, that is, to use the potential energy of the water to convert the mechanical energy of the hydrowheel, and then use the mechanical energy to drive the generator to obtain electricity. Scientists have carefully matched the natural conditions of water level difference to achieve the highest power generation by effectively using fluid engineering and mechanical physics, so that people can use cheap and pollution-free electricity.

2. Thermal power generation.

Thermal power generation refers to a power generation method that uses the heat energy generated when combustible materials (mostly coal in China) are burned and converted into electrical energy through power generation power devices.

The main equipment systems of thermal power plants include: fuel supply system, water supply system, steam system, cooling system, electrical system and some other auxiliary treatment equipment.

3. Wind power generation.

Converting wind energy into electricity is one of the most basic ways to use wind energy. The working principle of a wind turbine is relatively simple, the wind wheel rotates under the action of the wind, which converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator is driven by the wind turbine shaft.

The wind wheel is an air collection device, and its function is to convert the kinetic energy of the flowing air into the mechanical energy of the wind wheel rotation. Generally, the wind turbine of a wind turbine is composed of two or three blades.