In the world of renewable energy resources, solar power is the epitome – abundant, reliable, and green. For decades scientists and engineers have been working tirelessly to improve the efficiency at which photovoltaic cells convert sunlight to electricity. If they can simply make PV cells efficient enough, then they would be cheaper than fossil fuels and most of the world could switch over to the better technology. Getting solar power to be as cost-effective as traditional electricity sources is known as reaching “grid parity”, and several locations around the world have already succeeded in making it a reality. How can the rest of the world join in? While scientists and engineers will be crucial in that development, loan officers and bankers may hold the key to bringing solar power to the masses.