Hydroelectric power

What is a big advantage of hydro-electric power?

It can provide an immediate response to an increased demand for electricity.

What environmental impacts can hydro-electric power have?

Flooding of the valley, possible loss of habitat for some species, and reservoirs can look unsightly when they dry up.

Where should hydro-electric power stations be put to reduce their impact on humans?

In remote valleys.

What does hydro-electric power transfer energy from?

The kinetic store of falling water.

What requires the flooding of a valley by building a big dam?

Hydro-electric power.

What is caught and allowed out through turbines in a hydro-electric power system?

Rainwater.

What are the initial costs and running costs for hydro-electric power?

Initial costs are high, but there are no fuel costs and minimal running costs.

When is there no problem with reliability for hydro-electric power?

Except in times of drought.

Where can hydro-electric power be useful to generate electricity?

On a small scale in remote areas.