Optimal Operation of Hydrogen Energy Coupling Integrated Energy System considering Green Certificate, Ladder-Type Carbon Joint Trading, and Dual-Incentive Demand Response

Table 6

Comparison of scheduling costs under different IDR strategies.

Scenes	IES total cost (yuan)	Operation and maintenance cost (yuan)	Energy purchase cost (yuan)	IDR subsidy cost (yuan)	Carbon emission (kg)
5	31666.4	4870.1	26796.3	—	15867.2
6	30416.4	4802.5	25613.9	—	14120.2
7	29567.1	4715.4	23843.6	1008.1	13841.4
8	27981.7	4971.4	21885.8	1124.5	12880.4