Question

Ideas for still model on Sustainable Development.

Answer 1

In rainy climates, the power of water is often unharnessed. Microhydropower capturing water flow from rooftops or small rivers, would be a great project, and also have potential to alleviate poverty in communities with a lack of electricity.

or

Given your stream of education, I think it would good to work on Energy. Some themes could be:

Energy efficiencyCooling (or heating) technologyUtilisation of waste energy.

Best.