Given the environmental problems, especially in developing countries, as well as new environmental laws limiting the use of fossil fuels, governments seek to replace fossil fuels with clean energies like renewable energies. The purpose of this study was to assess the development of renewable energy as well as reviewing the laws and policies of China and Taiwan in this regard. We also constructed different scenarios based on national sources, in consideration of a significant increase in the electrical power generation and a reduction in the CO2 emission. Focus is placed on the renewable energy development and a significant reduction in the CO2 emission. The results showed that the photovoltaic solar systems have the greatest benefits in energy production and CO2 emission reduction in China and Taiwan. However, due to economic consideration and technical problems, there is still a long way to go.
