Operation Optimization of Integrated Energy System considering Power-to-Gas Technology and Carbon Trading

Table 7

Economic comparison of IES operation in different cases.

Case	1	2	3
Net income (CNY)	91680	114440	126340
Energy selling benefits (CNY)	264740	285960	285960
Operating cost (CNY)	27510	43510	42540
Energy purchase cost (CNY)	90720	86410	85410
Carbon emission cost (CNY)	17790	12390	11410
Penalty cost relevant to wind and solar abandonment (CNY)	37040	29220	20260