Electricity comes from different places. Some sources are natural and can be used again and again. Others are taken from the ground and cannot be replaced once used.

1. Waterfalls (Hydropower)

Moving water has energy. When water falls from a high place, it flows with great force. This force is used to spin large wheels called turbines. The turbines turn generators, which produce electricity.

• How it works: Water flows down through pipes, hits turbine blades, and spins them. The spinning turbine turns a generator that makes electricity.
• Example in Tanzania: The Kidatu Hydroelectric Plant in Morogoro Region generates electricity using water from the Great Ruaha River.

2. Sunlight (Solar Energy)

The sun gives us light and heat. This energy can be captured and turned into electricity using special panels called solar panels.

• How it works: Solar panels have cells made of silicon. When sunlight hits these cells, they produce electricity.
• Example in Tanzania: Many rural schools and homes in villages without grid electricity use solar panels to power lights and charge phones.

3. Wind (Wind Energy)

Wind is moving air. Wind turbines have large blades that catch the wind and spin like a fan. The spinning turns a generator to produce electricity.

• How it works: Wind blows the blades, causing them to rotate. The rotation drives a generator that creates electricity.
• Example in Tanzania: Wind farms are being developed in Singida Region where wind blows strongly for most of the year.

4. Fossil Fuels (Thermal Power)

Fossil fuels come from ancient plants and animals buried underground. Coal, oil, and natural gas are fossil fuels. They are burned to produce heat, which boils water to make steam. The steam spins turbines connected to generators.

• How it works: Fuel is burned → heat boils water → steam spins turbine → generator makes electricity.
• Example in Tanzania: The Kinyerezi Power Plant in Dar es Salaam uses natural gas to generate electricity for the city.