Renewable Energy Technologies evaluates the potential and limitations of solar, wind, hydroelectric, geothermal, and biomass energy. Students analyze how these technologies harness natural processes to generate power and the geographical factors that determine their viability. The unit also explores the technological challenges of integrating intermittent renewables into national grids, such as the need for energy storage and smart grids, as per AQA 3.3.3.
National Curriculum Attainment TargetsAQA 3.3.3.1 Renewable energyAQA 3.3.3.2 New energy technologies
Groups are given a map of a coastal region with data on wind speeds, bird migration routes, shipping lanes, and local towns. They must select the best location for an offshore wind farm and justify their choice based on both energy yield and environmental impact.
Students act as grid operators, trying to balance supply and demand over a 24-hour period. They are given 'weather cards' that change the output of wind and solar, and they must use 'storage' or 'backup' sources to prevent blackouts.
What are the geographical requirements for hydroelectric dams?
Stations feature newer technologies like hydrogen fuel cells, concentrated solar power, and wave energy converters. Students rotate to evaluate the current 'readiness level' of each technology and the barriers to its widespread adoption.
How can solar power be integrated into national grids?
Renewable energy is completely 'free' and has no environmental impact.
Students often overlook the energy and materials needed to build turbines and panels, as well as their impact on local wildlife. A 'cradle-to-grave' analysis activity helps students realize that while renewables are much cleaner than fossil fuels, they still have an environmental footprint.
We can't rely on renewables because the sun doesn't always shine and the wind doesn't always blow.
While intermittency is a challenge, students often don't realize the role of diverse energy mixes, international interconnectors, and emerging storage technologies. A grid-balancing simulation helps students understand how these tools can manage the variability of renewable power.