水力发电的优点和缺点 ( USE ENGLISH)
kuaidi.ping-jia.net 作者：佚名 更新日期：2024-06-28
图片参考：upload.wikimedia/ *** /mons/d/de/Slan.dam 优点Advantages Economics The major advantage of hydroelectricity is elimination of the cost of fuel. The cost of operating a hydroelectric plant is nearly immune to increases in the cost of fossil fuels such as oil
natural gas or coal. Fuel is not required and so it need not be imported. Hydroelectric plants tend to have longer economic lives than fuel-fired generation
with some plants now in service having been built 50 to 100 years ago. Operating labor cost is usually low since plants are automated and have few personnel on site during normal operation. Where a dam serves multiple purposes
a hydroelectric plant may be added with relatively low construction cost
providing a useful revenue stream to offset the costs of dam operation. It has been calculated that the sale of electricity from the Three Ges Dam will cover the construction costs after 5 to 8 years of full generation.[3] Greenhouse gas emissions Since no fossil fuel is consumed
emission of carbon dioxide (a greenhouse gas) from burning fuel is eliminated. While some carbon dioxide is produced during manufacture and construction of the project
this is a tiny fraction of the operating emissions of equivalent fossil-fuel electricity generation. However
there may be other sources of emissions as discussed below. Related activities Reservoirs created by hydroelectric schemes often provide facilities for water sports
and bee tourist attractions in themselves. In some countries
farming fish in the reservoirs is mon. Multi-use dams installed for irrigation can support the fish farm with relatively constant water supply. Large hydro dams can control floods
which would otherwise affect people living downstream of the project. When dams create large reservoirs and eliminate rapids
boats may be used to improve trportation. 图片参考：upload.wikimedia/ *** /mons/thumb/a/a4/Water_turbine/230px-Water_turbine Hydraulic turbine and electrical generator. Hydroelectric dam in cross section Main article: Electricity generation 缺点Disadvantages Environmental damage Greenhouse gas emissions Population relocation Dam failures 太多字post唔到 你上en. *** /wiki/Hydroelectricity#Advantages 睇la 个度好[email protected] hope an help u!
natural gas or coal. Fuel is not required and so it need not be imported. Hydroelectric plants tend to have longer economic lives than fuel-fired generation
with some plants now in service having been built 50 to 100 years ago. Operating labor cost is usually low since plants are automated and have few personnel on site during normal operation. Where a dam serves multiple purposes
a hydroelectric plant may be added with relatively low construction cost
providing a useful revenue stream to offset the costs of dam operation. It has been calculated that the sale of electricity from the Three Ges Dam will cover the construction costs after 5 to 8 years of full generation.[3] Greenhouse gas emissions Since no fossil fuel is consumed
emission of carbon dioxide (a greenhouse gas) from burning fuel is eliminated. While some carbon dioxide is produced during manufacture and construction of the project
this is a tiny fraction of the operating emissions of equivalent fossil-fuel electricity generation. However
there may be other sources of emissions as discussed below. Related activities Reservoirs created by hydroelectric schemes often provide facilities for water sports
and bee tourist attractions in themselves. In some countries
farming fish in the reservoirs is mon. Multi-use dams installed for irrigation can support the fish farm with relatively constant water supply. Large hydro dams can control floods
which would otherwise affect people living downstream of the project. When dams create large reservoirs and eliminate rapids
boats may be used to improve trportation. 图片参考：upload.wikimedia/ *** /mons/thumb/a/a4/Water_turbine/230px-Water_turbine Hydraulic turbine and electrical generator. Hydroelectric dam in cross section Main article: Electricity generation 缺点Disadvantages Environmental damage Greenhouse gas emissions Population relocation Dam failures 太多字post唔到 你上en. *** /wiki/Hydroelectricity#Advantages 睇la 个度好[email protected] hope an help u!
