To effectively manage the information overload, the best next step would be to:
Focus your search on more specific aspects of renewable energy, such as solar initiatives in rural KwaZulu-Natal, and use databases relevant to South African research.
This approach helps narrow down the results to the specific area of interest while ensuring that the information is relevant to your research context. By honing in on solar initiatives in a particular region, you can better address your research objectives without getting overwhelmed by the broader topic of renewable energy across the entire country.