Does your country use hydroelectric power? If so, where?
...
What did people use to generate light and heat before electricity was discovered?
...
What other ways is electricity generated in your country?
...
What fuel sources do you think we will be using in 100 years' time?
...
How did people travel before cars were invented?
...
What are the benefits of hydroelectric power compared with other sources of energy?
...
What fuel sources do we use for heat, light and transport today?
...