Power and Energy in Rwanda
Senior 2 · Geography and Environment
Power and Energy in Rwanda
Lesson 1 of 3
22 min
Energy lights homes for evening study, runs factories and hospitals, charges phones and cooks food. Rwanda has fast rivers falling from its hills, strong sunshine all year, and large amounts of wood and crop waste. How the country uses these resources affects its forests, its budget and its development. This lesson surveys the energy resources that nature keeps replacing.
| Resource | How it is used | Examples in Rwanda |
|---|---|---|
| Hydroelectric power (HEP) | Falling water spins a turbine, which drives a generator | Ntaruka (11.5 MW) and Mukungwa (12 MW) on the Mukungwa River; Nyabarongo I (28 MW); Rukarara (9.5 MW); shared plants on the Rusizi River; Rusumo (80 MW) on the Kagera, completed in 2024 and shared equally by Rwanda, Burundi and Tanzania |
| Solar energy | Photovoltaic (PV) panels turn sunlight into electricity; solar heaters warm water | The 8.5 MW Rwamagana solar farm at Agahozo-Shalom Youth Village, opened in 2015 with 28,360 panels; solar home systems in villages beyond the grid |
| Biomass | Burning firewood, charcoal and crop waste for heat | The main cooking fuel in most homes: about 85% of all energy used in 2014 |
| Biogas | Dung and other waste rot in a sealed tank (digester), giving a gas that burns cleanly | Farm digesters fed with cow dung; some schools and prisons |
| Geothermal energy | Heat from hot rocks deep underground makes steam to drive turbines | Potential in the volcanic north-west and near the hot springs of Rubavu and Rusizi; explored but not yet producing |
| Wind | Wind turns large blades that drive a generator | Winds are mostly light, so it is little used |
Rwanda is well suited to hydroelectric power because its hilly relief gives rivers steep falls, and heavy rainfall in the west keeps them flowing. Hydropower has supplied about half of the country's grid electricity.
Use the solar map below. Explain why the east, where Rwamagana lies, suits a large solar farm better than the north-west, and find the average output of one panel at Rwamagana.
Tip
Memory hook: Renewable = Replaced. Ask one question: "Will nature replace it within my lifetime?" Water, sun, wind and the earth's heat: yes. Wood: only if trees are replanted as fast as they are cut.
Solution: one that nature replaces within a human lifetime, such as hydropower (Nyabarongo I) and solar energy (Rwamagana).
Solution: hilly relief gives rivers steep falls, and high rainfall keeps many rivers flowing.
Solution: 80 ÷ 3 ≈ 26.7 MW, about 27 MW.
Solution: dung and waste rot without air in a sealed tank and give off methane-rich gas, which is piped to a stove or lamp.
Solution: when trees are cut faster than they are replanted, so forests shrink.
Summary
Sources and credits
The resource table, the worked example and the practice items are written by Ganzaa.
This lesson adapts CC BY-SA material and is shared under CC BY-SA 4.0.
