Economy and Regional Utilization of Urban Distributed Photovoltaic Power Generation in China
Received date: 2018-12-14
Revised date: 2019-03-04
Online published: 2025-04-18
Identifying obstacles of photovoltaic is the key to promote it. Therefore, this paper takes 331 cities in China as the research object, evaluates the photovoltaic power generation capacity of each city by using PVsyst software. Based on the life-cycle theory, cost-benefit analysis and scenario analysis, this study divides the photovoltaic life cycle into investment recovery stage and net profit stage, and constructs the economic analysis model of distributed photovoltaic. It sets up comparative scenarios based on policy and technology guidance to evaluate and analyze the photovoltaic economy of each city under each scenario without photovoltaic subsidies, and analyzes the regional utilization differences of photovoltaic. The results show that: 1) Under the benchmark scenario, the payback period of photovoltaic investment in only 105 cities is less than 13 years, and the profit index is 1.3~2.1; under the policy support scenario, it has only 201 cities whose payback period is less than 13 years and profit index is 1.3~2.3; under the technology development scenario, it has 259 cities whose payback period is less than 13 years and profit index is 1.3~2.5. 2) Supportive financial policy, electricity price policy and technological development can effectively improve the photovoltaic economy. Every 1% increase in electricity price growth rate will help the income of photovoltaic power generation increase by 5.25%; every 1% decrease in interest rate of photovoltaic loan will help the financing cost decrease by 6.67%, and the cost of photovoltaic power generation decrease by 3.22%; every 1% decrease in construction cost of photovoltaic system will help the cost of photovoltaic power generation decrease by 1%. 3) Due to the difference of resource endowment and economic conditions, there are obvious regional differences in photovoltaic economy. According to economic differences, the whole country should be divided into four levels to develop distributed photovoltaic in a targeted way.
LIU Junbo , ZHANG JingJing , XU Xiangyang , GAO Junlian . Economy and Regional Utilization of Urban Distributed Photovoltaic Power Generation in China[J]. Economic geography, 2019 , 39(10) : 54 -61 . DOI: 10.15957/j.cnki.jjdl.2019.10.008
表1 情景组合设定Tab.1 Scenario combination setting |
因素 | BAU Scenario | PS Scenario | TD Scenario |
---|---|---|---|
IC | cur_IC | cur_IC | dev_IC |
I | cur_I | sup_I | sup_I |
ε | cur_ε | sup_ε | sup_ε |
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