I was wondering, in laymen terms, what is the exact definition of renewable energy and what are its various forms, which ones are better and in what situations can they / can they not be used.
How do you weigh the cost of setting up this technology with its payoff, and how do you set these benefits apart from those derived by investing in other areas such add healthcare, research, and development in other areas such add food and disease fighting?
Sends like there are manpower-based investments and research based investments.
I realize this is a very broad question, but tried Wikipedia and could not find a laymen answer to my broad question.
NOTE: If my question is to broad, then please just pinpoint this very basic question: how do you define renewable energy?