INTRODUCTION The production and use of electricity generated by fossil fuels is one of the most environmentally damaging human activities on this planet. It is generally acknowledged that increasing the share of electricity generated by renewable energy is vital for reducing the environmental impacts of electricity generated by fossil fuels and achieving sustainable development. Protection of the environment is a key reason for the introduction of government policies encouraging the development of renewable energy through mechanisms such as tax and other financial incentives and the mandatory purchasing by electric utilities of electricity generated from renewable energy sources in developed countries since the 1970s. More recently, the der...