Hydropower in Africa

Hydropower in Africa

The Hydropower in Africa lesson helps students understand how hydroelectric dams generate electricity, support economic development, and create complex trade-offs for the people and ecosystems around them. Anchored by a video featuring the Grand Ethiopian Renaissance Dam (GERD) on the Blue Nile, the lesson uses Africa as a real-world case study for exploring how energy access, infrastructure decisions, and environmental impacts intersect. Students examine how hydropower can lift communities out of poverty, connect countries to regional power grids, and at the same time displace local populations and reshape ecosystems.

The lesson is built around a hub-and-spoke structure with multiple components teachers can use together or separately. A bell ringer launches discussion of the GERD using guiding questions about energy benefits, environmental and social trade-offs, and the factors a country considers before building a major dam. A vocabulary list and quiz with cloze notes support comprehension of the Hydropower in Africa video, covering terms like hydropower, transmission line, displacement, modernization, and beneficiaries. A data set from Our World In Data and the IEA gives students authentic energy mix data from Ethiopia and Tanzania to interpret hydropower trends from 2000 to 2023.

The centerpiece is a hydroelectric dam research project where students select an operational dam from anywhere in the world, conduct research using credible sources, and complete a cost-benefit analysis across economic, environmental, and social impact categories. Students develop an evidence-based claim about whether their selected dam should continue as-is, be modified, expanded, or decommissioned, and they support the claim with data and a counterargument. The exit ticket invites students to consider what it would feel like to be displaced by a power plant, building empathy for communities affected by energy infrastructure decisions.

This lesson is designed for middle school and high school environmental science, AP Environmental Science, geography, and STEM classrooms. It supports standards including HS-ESS3-2 on evaluating cost-benefit ratios of energy resources, HS-ETS1-3 on weighing tradeoffs in solutions, and AP Environmental Science Topic 6.9 on hydroelectric power. The lesson develops skills in data analysis, evidence-based reasoning, claim-evidence-reasoning (CER) argumentation, stakeholder analysis, and systems thinking.

Extend the Lesson: Pair this lesson with the Introduction to Hydropower lesson and video for foundational content on how hydropower works as an energy source. Connect students to the Introduction to Energy Access / Energy Poverty lesson to deepen their understanding of why countries like Ethiopia invest heavily in large infrastructure projects despite the trade-offs.