As one of the top energy consumption country, China is under huge pressure of energy security, GHG
emission control and environmental protection. Accounting for half of China energy-related emission,
Chinese power sector especially need a quick development of clean generation technologies. However,
the current developing speed is not enough and the crucial development thresholds of clean generation
technologies are poorly understood. For these reasons, this study uses MESEIC (Multi-regional model for
Energy Supply system and their Environmental ImpaCts) model to offer a suggested roadmap for Chinese
power sector. Through different scenarios, this study sheds light on the penetration thresholds of various
clean generation technologies and put forward policy suggestions in different time-scale for breaking out
the thresholds. Setting solar power case as an example, the short-term threshold is its generating cost. The
suggested solution is enacting promotional policies, such as feed-in tariffs (0.45 RMB/kWh), renewable
portfolio standards, renewable energy certificate trading, tax based incentives etc. The long-term
threshold is geography limitation, which can be solved by improving the power grid transmission capacity
and developing distributed solar energy.