thesis literature review

Question

I am doing a thesis on harvesting energy from natural waterfall such as after people have used a shower etc in a apartment block or sky scraper. I am struggling to think of some topics for my literature review. so far I have done introduction 

greenhouse gases 

pollution 

renewable energy 

for the literature review I have wrote about how much water is used to get an approximate water total 

I am thinking of talking about back up storage for water 

designing a turbine for the system 

can anyone give me some advice on other topics 

Thank you 

Answer 1

If there is a real-life existing example of this or a similar model, mention that in brief, or if you are planning to develop your own model, state that and what are the parameters for consideration.