公共建筑光伏系统太阳能利用潜力评价
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内蒙古科技大学 土木工程学院

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内蒙古自然科学基金项目(2017MS0535)


Solar energy utilization potential evaluation of public building photovoltaic system
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Institute of Civil Engineering,Inner Mongolia University of Science and Technology,Inner Mongolia Baotou 014010

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Inner Mongolia Natural Science Foundation Project (2017MS0535)

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    摘要:

    面对不断增长的能源需求及减少碳排放的双重挑战,提高城市可再生能源利用率,降低建筑能耗,发展光伏建筑一体化应用,实现建筑与新能源产业的融合发展。本研究选取包商银行公共建筑光伏系统,依据内蒙古包头市独特的气候特征,利用Ecotect求取典型建筑表面全年太阳辐射模型,基于最优系统配置方式,从高峰期能源潜力、经济潜力、社会潜力三个维度构建了光伏建筑太阳能利用潜力评价模型,对包商银行光伏系统太阳能利用潜力进行评价。研究结果表明:在极端气候期间包商银行光伏系统以总电力需求的12.5%来缓解高峰期当地电网的压力,将用能高峰延迟了2h;光伏系统25年生命周期净收益104.66万元,基于光伏系统单位造价为7.9元/W,上网电价0.8元/kWh的情况下,系统投资可在5.15年内收回,且单位造价、政府补贴与投资回收期之间具有三维耦合关系;光伏系统寿命期内的环境效益为 0.096元/kWh ,社会效益为 11.93元/kWh 。此评价模型为城市中光伏建筑的推广及光伏产业政策的制定提供借鉴。

    Abstract:

    Faced with the dual challenges of increasing energy demand and reducing carbon emissions, improve urban renewable energy utilization, reduce building energy consumption, develop integrated photovoltaic building applications, and achieve the integration of construction and new energy industries. In this study, the public building photovoltaic system of Baoshang Bank was selected. According to the unique climatic characteristics of Baotou City, Inner Mongolia, Ecotect was used to obtain the annual solar radiation model of typical building surface. Based on the optimal system configuration method, the solar energy utilization potential evaluation model of photovoltaic building is constructed from three dimensions: Peak energy potential, economic potential and social potential. The research shows that the photovoltaic system of Baoshang bank alleviates the pressure of the local power grid at the peak period with 12.5% of the total power demand during the extreme climate, and delays the peak period of energy consumption by 2 hours. The net income of photovoltaic system 25-year life cycle is 1.0466 million yuan. Based on the unit cost of photovoltaic system is 7.9 yuan / W, the on-grid price is 0.8 yuan / kWh, the system investment can be recovered within 5.15 years, There is a three-dimensional coupling relationship between unit cost, government subsidy and investment payback period. The environmental benefit during the life of the photovoltaic system is 0.096 yuan/kWh, and the social benefit is 11.93 yuan/kWh. This evaluation model provides reference for the promotion of photovoltaic buildings in the city and the formulation of photovoltaic industry policies.

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  • 收稿日期:2019-03-14
  • 最后修改日期:2019-04-24
  • 录用日期:2019-04-24
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