Economic analysis of SPE hydrogen production technology in China

doi:10.19799/j.cnki.2095-4239.2022.0361

Abstract

Abstract:

This paper takes SPE electrolytic hydrogen renewable energy project as the research object and analyzes the total investment, total cost, operating cost and profit of 1000 Nm³/h plant through the engineering economics of methodology, which obtains the key financial indicators such as accumulative NPV, IRR and static investment payback period (P_t ).The total investment of the hydrogen plant is 11.178 million yuan with the area of 10.47 mu(1 mu=666.67 m²).The result shows the electricity consumption accounts for 86.4% of the operating cost, which is the largest cost during the operation. Under the calculation conditions,the relevant financial indicators of the SPE hydrogen technology plant are NPV=21.7321 million Yuan≥0.P_t =8.8 years and IRR=11.63%. At the same time, it is found that the economic values of SPE electrolytic hydrogen renewable energy project is very sensitive to equipment purchase cost, muzzle price of hydrogen refueling station, green electricity price and government subsidies. Investors need to fully consider the local situations to make a decision. The study also points out that when the capacity of the hydrogen plant has reached 308 Nm³/h, i.e., the production capacity utilization ratio (EBP) is 30.08%, it begins to reach the balance point. The balance point is rising with the years of operating, that means hydrogen plant should be fully operated to make more profits by maximum production with highest efficiency. Meanwhile, IRR is 11.05% based on one time overhaul and 20% of the equipment cost during the life span. If the government subsidies last for 15 years, the IRR is 8.1% (one time overhaul) and the NPV is 74.386 million.

Key words: hydrogen plant, hydrogen production by solid polymer electrolysis, economy

CLC Number:

TK 91

Yubo QI, Da GAO, Xianling ZHENG. Economic analysis of SPE hydrogen production technology in China[J]. Energy Storage Science and Technology, 2022, 11(12): 4038-4047.

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序号	设备名称	技术规格	单价/万元	数量	合计/万元
合计					7900
1	制氢电源	5.5 MW	170	1	170
2	电解制氢系统	500+500 Nm³/h	6730	1	6730
3	纯水制取系统	1 m³/h	30	1	30
4	储氢罐	2 MPa、50 m³	70	1	70
5	氢气压缩机	500 Nm³/h、20 MPa排气	300	2	600
6	其他	管路、仪表、电控系统等	300	1	300

序号	建、构筑物名称		单价/元	工程量/m²	合计/万元
合计					512.8
1	制氢车间	电解槽及氢气纯化设备	1800	150	27
		储氢罐、纯水系统、空压系统、冷冻机		120	21.6
		氢气压缩机、汇流排		210	37.8
		变电系统、制氢电源		200	36.0
		冷却塔、换热器		400	72.0
		管束充装和存放		240	43.2
		气瓶组充装和存放		90	16.2
2	中控室		1200	500	60.0
3	办公室		1200	300	36.0
4	库房		1000	500	50.0
5	门卫室		1000	80	8.0
6	食堂等生活设施		1000	500	50.0
7	车库		1000	200	20.0
8	厂区围墙和大门		200	400	8.0
9	厂区道路		120	1000	12.0
10	厂区绿化		50	3000	15.0

序号	建设用地分项		费用/万元	征地面积/亩	说明
1	征地补偿费	土地补偿费	31.41	10.47	前三年平均每亩产值3000元，土地补偿标准为前三年每亩产值的10倍，安置补助费为6倍
		安置补助费	18.85		前三年平均每亩产值3000元，土地补偿标准为前三年每亩产值的10倍，安置补助费为6倍
		地上附着物	1.20		地上附着物估算300棵树木，每棵补偿40元
		青苗补偿费	0.21		200元每亩
		征地动迁费	0
		其他税费	0
2	土地使用权出让(转让)金		0
3	租地费用和临时用地补偿费		0
合计			51.67

序号	不确定因素	不确定因素变化率	财务内部收益率	敏感度系数	临界点
0	基本方案	——	11.63%	——	——
1	设备购置费变化	20%	9.45%	-0.94	23.73%
1	设备购置费变化	-20%	14.69%	-1.32	23.73%
2	加氢站枪口价格变化	20%	16.39%	2.05	-13.57%
2	加氢站枪口价格变化	-20%	6.28%	2.30	-13.57%
3	绿电电价变化	20%	9.46%	-0.93	35.41%
3	绿电电价变化	-20%	13.68%	-0.88	35.41%
4	政府补贴变化	20%	14.06%	1.04	-29.88%
4	政府补贴变化	-20%	9.07%	1.10	-29.88%

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