In the context of low-carbon economic development, controlling fossil energy consumption and promoting development in renewable energy are important paths for energy transition in diverse countries. Taking China as an example, this paper investigates the effect of the policy coupling of fossil energy use rights trading (FET), renewable energy certificate trading (RECT), and renewable energy subsidies (RES) on the low-carbon economy using a dynamic recursive computable general equilibrium (CGE) model. The main findings of this paper are as follows: (1) When using a game cross equity fixed-cost allocation model (Game-EFCAM) to allocate fossil energy use rights quotas among sectors, allocations differ in only a few sectors compared to the base period, and most sectors have relatively stable allocations compared to the base period. (2) The implementation of FET and RECT has a negative impact on per capita GDP. In the short term, and RES can mitigate the negative impact of FET and RECT on per capita GDP, but eventually, the government needs to guide the enterprise innovation to improve the industrial structure to realize the double benefits of energy policy. (3) The implementation of FET and RECT limits fossil energy consumption and also reduces the production possibility frontier of secondary industries with higher levels of fossil energy consumption. The implementation of FET and RECT thus increases the proportions of tertiary industry and renewable energy. (4) The implementation of FET and RECT reduces carbon emissions. In other words, the implementation of FET and RECT reduces the negative environmental externality. RES can enhance the carbon reduction efforts of FET and RECT.

low carbon economy; FET; RECT; RES; CGE.