Question

Why hydel energy is generally not preferred?

Answer 1

1. The dams are expensive to build and they must be built to high standards.
2. In case of dam breaches, the runaway water causes significant flooding in nearby regions, causing loss of flora and fauna, and human life.
3. Hydropower plants require high capital with a low rate of return.
4. Large areas of human habitation and agricultural fields get submerged.
5. Dams can be built in limited areas.