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Solar lantern design and production

Activities

DMA: Write your own product analysis of the solar lantern, identifying its strengths and any ways in which you think it could be improved. Then redesign the lantern, trying to improve on the weaknesses you have identified in the product analysis. Make a model of your new design.

DMA: Look again at the solar lantern and the photovoltaic panel used to power it. Can you find a way to integrate the two components more effectively? Sketch some of your ideas.

DMA: The wind-up radio by Trevor Baylis was redesigned for sale in developed countries. Can you redesign the solar lantern to make it suitable for sale to a wider group of people?

DMA: Look at other forms of outdoor lights that use battery power (e.g. lights that are used to warn road users of roadworks). Could you use the same recharging technology for these? Redesign one of the lights you have identified.

FPT: Investigate what else solar power is used for. Write a short report on three of the applications of solar power that you have discovered.

FPT: Find out how a lead-acid accumulator works. What factors affect the charging rate of the battery and the amount of power the device can deliver?

FPT: Investigate the different types of rechargeable batteries available. Draw up a chart that compares their characteristics and suggests suitable uses for each.




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Practical Action - Technology challenging povertyEuropean Commission - Department for International Development

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