Page 66 - “GREENING” THE CONTENT IN CXC® SYLLABUSES
P. 66
E-LEARNING MODULES AND LEARNING GUIDE FOR TEACHERS
Wind
Advantages Disadvantages
Renewable and clean source of energy Moderate to high initial/capital cost
depending on the size of the system.
Reduces dependence on fossil fuels Only practical in windy areas/Intermittent
Reduces electricity costs over time Backup systems are required
Low operating cost Noise and visual pollution
Low maintenance cost Poses a threat to birds and bats
Emits no air pollution
Can provide power to remote areas
Has a high efficiency rate
Can be installed both onshore and
offshore
Hydropower
Advantages Disadvantages
Renewable and clean source of energy High initial/capital cost
Reduces dependence on fossil fuels Weather dependent/intermittent
Reduces electricity costs Energy storage (batteries) are expensive
Emits no air pollution Requires a lot of space
Biofuels and Biomass
Advantages Disadvantages
Is a renewable source High capital investment
Helps to reduce waste High production cost
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