energy economics

creating two lists of variables, one that affects the supply of electricity (e.g., cost, regulations, limits, etc.) and another that affects demand (e.g., efficiencies, incentives, environmental concerns, etc.). Narrow down each list to what you believe to be the most significant three variables. Use each variable only once (in other words, do not use the same variables for both supply and demand).

In the essay answer the following

What top three variables did you believe to affect the supply of electricity the most? What influenced that perception?
What top three variables did you believe to affect the demand of electricity the most?
Does the existing body of literature support or contradict your initial assessment? Either way, please describe.
Which single variable (e.g., price) has the most impact on the intersection of supply and demand ?