What advantages and disadvantages of hydroelectric energy?

Answer 1

The Advantages are that water is a renewable resource and the station has minimal enviromental impact
Advantage: Non-polluting, economical in long run, no fuel cost, renewable, generating many side products, eco-friendly, least technological, easy maintenance,..

Disadvantage: Seasonal fuel, limited sources, requiring more land, less room for technical improvement, costly transmission and related maintenance expenses, huge initial work and expenses, ....
== == Advantages: ECONOMICS: you don't have to pay for fuel. Also, labor costs are low because hydroelectric plants are automatic. GREENHOUSE GAS EMISSIONS: they don't burn fossil fuels therefore no Carbon Dioxide is produced. RELATED ACTIVITIES: provide facilities, e.g. for waterspouts. Disadvantages:ENVIRONMENTAL DAMAGE: can have poor aesthetics, loss of river banks, animal habitats etc. AFFECTED BY FLOW SHORTAGE: changes in river flow can decrease energy produced. DAM FAILURES: flooding in rare cases. POPULATION RELOCATION: people living where reservoirs are planned have to move!
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An advantage is that it is a great, clean, renewable resource of energy. But, the dams that are used cause flooding and damages to other ecosystems.

Answer 2

The advantages of using hydroelectric power is that it is a renewable energy source (i.e. it can be re-used and is always available) and it is a clean energy source (does not damage the environment). The downside is that it requires a huge amount of resources and results in the flooding of thousands of acres of land.

Answer 3

Coal based power stations produce a lot of fly ash that are damaging for the environment. Though a lot has been done on trying the reuse the fly ash effectively, the efforts have been insufficient. Hydro based power generation does not have any such damaging by product. It is considered to be more environment friendly compared to Coal based and Nuclear power stations.

Coal based power plants also emit Carbondioxide gas (CO2) that is harmful for global warming. See the link http://www.msnbc.msn.com/id/27720013/

See also: What_causes_global_warming

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Answer 4

Advantages: creates no air pollution because there is nothing to burn; renewable.

Disadvantages: changes environment if a large dam is built because it creates a reservoir, which eliminates habitat for organisms that need running water; electricity must be generated at the dam site, which may be far distant from where the energy is needed.

Answer 5

advantage: solar power disadvantages: hydro power

Answer 6

it costs alot - disadvantage!

Answer 7

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