Explain the design of renewable and non-renewable energy system principle (Other than water)

What is Energy crisis? What are the causes of energy crisis? Explain the consequences and possible solutions of the energy crisis.

Discuss the challenges and solutions associated with integrating renewable energy sources into the power grid.

Subject - Disscuss types of alternative energy system, and how they differ from common systems in use today Question - Explain the operating principles and purpose of the main types of renewable energy technology in current use

From your understanding, what is the differnece between a grounding wire and a grounded wire? I answered this way ... Grounding wire is connecting to ground or to a conductive body extends the ground connections. Whereas the grounded wire is connected to earth or to some conducting body that serves inplace of the earth. The replied I got from a classmate "I feel your definitions here aren't exactly different. The first describes connecting to ground and the second to earth. Those are one and the same. Am I missing your meaning, or do I have that correct?" Is he right or am I really missing the subject? Please reply me soon. Thank you

Subject - Discuss types of alternative energy system, and how they differ from common systems in use today Question - Analyse the operating principles, and environmental impact of, existing and advanced renewable technologies