Commercial investment value analysis of independent energy storage power station in Hunan Province

doi:10.19799/j.cnki.2095-4239.2022.0510

Abstract

Abstract:

The author believes that independent energy storage power stations in Hunan Province have commercial investment value; that is, they can make the project economic, stable and sustainable through capacity lease income and auxiliary service income based on on-site investigation, in-depth analysis of energy storage policies and auxiliary service rules issued by various provinces, and empirical research on the operation mode of independent energy storage power stations. Regarding capacity lease income, Hunan need large-scale energy storage power stations as supporting power sources based on the current power grid structure of Hunan Province. Presently, the policy of mandatory configuration of energy storage has been issued, which makes the capacity lease mandatory. Simultaneously, the capacity resources are scarce considering the limited number of 220 kV substations under a particular power system structure. The planned energy storage in Hunan Province presently can barely meet only the rental demand of the existing and newly planned projects during the "14th five-year plan." The pumped storage power stations planned for long-term demand should be operational by 2030. Therefore, the short-term capacity leasing market is expected to show supply exceeding demand. Finally, the capacity leasing market will maintain a basic balance between supply and demand before the large-scale production of pumped storage power stations. Presently, regarding auxiliary service income, the profit rules of Hunan energy storage participating in auxiliary services are relatively clear; the charging mode measurement is favorable for the energy storage power station. Furthermore, looking forward to the future power spot market, the spot trading income of energy storage power will show explosive growth. According to the survey, Hunan's independent energy storage power station has a commercial investment value at the current income level.

Key words: independent energy storage power station, auxiliary service income, auxiliary service income, commercial investment value

CLC Number:

TM 9

Kai FENG, Jiali LIN, Hui LI, Lian LIAN. Commercial investment value analysis of independent energy storage power station in Hunan Province[J]. Energy Storage Science and Technology, 2022, 11(12): 4077-4083.

Figures/Tables 7

Fig. 1

Table 1

Table 2

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Fig. 2

Table 4

Table 5

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容量租赁收入	辅助服务收入
容量租赁收入	1800万/年	上涨10%	上涨20%	上涨30%	上涨40%	上涨50%
下降50%	-0.55%	0.20%	0.94%	1.66%	2.38%	3.08%
下降40%	1.21%	1.93%	2.65%	3.35%	4.04%	4.73%
下降30%	4.57%	3.61%	4.30%	4.99%	5.66%	6.33%
下降20%	4.91%	5.25%	5.93%	6.59%	7.25%	7.90%
下降10%	6.19%	6.85%	7.51%	8.16%	8.79%	9.43%
4240万/年	7.77%	8.41%	9.05%	9.68%	10.31%	10.93%
上涨10%	9.31%	9.94%	10.57%	11.19%	11.80%	12.41%
上涨30%	12.31%	12.92%	13.52%	14.11%	14.70%	15.29%
上涨50%	15.21%	15.80%	16.38%	16.95%	17.53%	18.10%

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