- pros
- Green: hydropower is renewable and clean. The making of electricity does not pollute and water can later be used for human consumption, etc. Hydroelectric energy contributes to the sustainability of our planet.
- Safety: hydropower is safe compared to nuclear energy and fossil fuels. Despite some accidents occurred in dams, usually hydroelectric power plants do not entail a great danger to humans.
- Durability: dams can produce energy for decades, and require little further investments once they are built.
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- Cons
- Environmental impact: before producing hydropower it is necessary to build a dam, changing water levels and flooding large areas. It is also needed to build roads and power lines. All that a strong impact on wildlife and the ecosystem.
- Displaced people: the construction of a large dam often requires that entire towns move out of the area. In the construction of the Three Gorges Dam it is estimated than 1.2 million people were displaced.
- Expensive: building a dam needs alot of 💵💵💵💵💵💵💵💵💵💵💵.
- Accidents: in the past old dams often suffered breaches which led to floods causing death.
- Resouses needed:to build a hydro energy plant you need rivers rainfall and mountains