There is a paradigm shift underway in renewable energy. After generations of renewables being more expensive than fossil fuel-based electricity, the cost of utility-scale solar and wind projects have now reached grid-parity, bringing the overall cost of renewable energy in many markets below conventional rates for power. This shift has created an opportunity for forward-thinking companies to save money on their power costs, or to even make money as a seller of clean energy, while meeting or exceeding corporate sustainability goals.