Effects of the Green Policy Environment on Renewable Energy Investment and Effect Evaluation of Green Policies

Table 4

Annual effects of alternative green policies.

	Tariff		Carbon emission		Renewable energy power generation		Total power generation		R&D investment in renewable energy (%)	Emission reduction cost of renewable energy (%)
	Early stage (%)	Development stage (%)	Early stage (%)	Development stage (%)	Early stage (%)	Development stage (%)	Early stage (%)	Development stage (%)
Carbon price	7.5	7.5	−5.6	−5.9	15.2	18.9	−2.5	−2.5	83	3.9
Tradable carbon emissions	0.8	0.8	−6.1	−5.7	22.5	26.2	−0.3	−0.3	135	4.5
Output tax of renewable energy	15.6	15.6	−5.8	−6.1	28.4	37.6	−4.8	−4.8	185	7.2
Renewable energy quota system	8.9	3.4	−6.9	−5.4	145.8	12.4.2	−2.6	−0.9	647	21.9
Subsidy for renewable energy power generation	0.0	0.0	−5.3	−6.2	126.3	197.3	0.0	0.0	1229	23.8
Subsidy for R&D of renewable energy	0.0	0.0	−1.5	−8.6	43.5	236.8	0.0	0.0	392135	46.8