The implication of renewables, BES, and EV's in a sustainable power system

A few decades ago, the thought of using solar panels to save money on the power bill was inexistent. However, as advancements in renewable energy technology continue, adding renewables to one's home or business is becoming more and more beneficial. The prices of renewables such as solar panels and wind turbines has decreased drastically over the past couple decades. This is shifting their use from being not only beneficial to the environment, but to the wallet as well. This research is focused primarily on the monetary perquisites resulting from the use of renewables. That is, how much is the installation cost, how long is the payback period, and how much of a profit may result.