| In Wales this problem is solved by the Dinorwig hydroelectric power station, which pumps water up to a high reservoir during off-peak periods. |
| To generate electricity, we use hydroelectric power, coal and nuclear energy. |
| Parallel rivers fall to the Baltic Sea in rapids and falls, many of which have hydroelectric power stations. |
| The dam made hydroelectric power possible by forcing water through giant turbines. |
| They included a steam locomotive, a hydroelectric turbine, a steam turbine, electrical power lines and an airplane. |
| This year we viewed the astounding structure of a hydroelectric dam built across the Danube. |
