Theory question 308
Mining and Energy(a) What is solar energy? (b) Outline three advantages of solar energy. (c) Highlight three problems associated with harnessing of solar energy.
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Model answer
(a) Solar energy is energy from the sun's radiation (light and heat), which can be converted into electricity or heat by solar panels and collectors.
(b) Renewable and inexhaustible; clean, no pollution; available almost everywhere, good for remote areas; low running cost; quiet.
(c) High initial cost of panels and batteries; low output at night and in cloudy or dusty weather; needs storage; needs large areas for panels; shortage of skilled technicians; theft of panels.
Explanation
Advantages and problems as short phrases.