Managing residential solar photovoltaic-battery systems for grid and life cycle economic and environmental co-benefits under time-of-use rate design
Managing residential solar photovoltaic-battery systems for grid and life cycle economic and environmental co-benefits under time-of-use rate design
复制标题
根据使用时间率设计管理住宅太阳能光伏电池系统以实现电网和生命周期经济和环境协同效益
DOI：
10.1016/j.resconrec.2021.105527
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Mo, Weiwei
中科院分区：
文献类型：
--
作者：
Ren, Mingcheng;Mitchell, Clayton R.;Mo, Weiwei
美国电力公司越来越多地讨论或实施居民分时电价。分时电价设计可能会促进住宅电池安装，以增加高峰时段太阳能的销售或利用。然而，我们在设计和管理太阳能光伏（PV）电池系统方面的理解仍然有限，以实现分时电价设计下的经济、环境和电网共同效益。本研究将系统动力学建模与生命周期评估相结合，研究了在分时电价设计下住宅并网光伏电池系统的峰值负荷降低、生命周期成本以及生命周期气候变化、水资源消耗和化石燃料消耗的影响。在波士顿洛根地区，MA的住宅原型房屋被选为模型模拟。我们的研究发现，最大限度地提高高峰电网销售的太阳能光伏电池系统可以实现最高的高峰负荷减少和经济效益。然而，它们可能不会产生最高的环境效益，因为与新英格兰电网的中高峰时段相比，高峰时段的碳排放和化石燃料消耗系数较低。这表明在减少高峰负荷、经济节约和环境保护的需要之间存在潜在的权衡。单独安装光伏系统具有较强的经济和环保性能，但其调峰能力有限。安装电池系统但没有有效的控制策略可能会导致相对较弱的峰值负荷降低，经济和环境结果。这突出了有效的电池控制在太阳能光伏电池系统实施中的重要性。
The residential time-of-use (TOU) rates have been increasingly discussed or implemented by the US power utilities. The TOU rate design can potentially promote residential battery installations targeting increased selling or utilization of solar energy during the on-peak hours. However, our understanding in terms of the design and management of solar photovoltaic (PV)-battery systems for economic, environmental, and grid co-benefits under the TOU design remains limited. This study integrated system dynamics modeling with life cycle assessment to investigate the peak load reduction, life cycle cost, as well as life cycle climate change, water depletion, and fossil fuel depletion effects of residential grid-connected PV-battery systems under a TOU rate design. A residential prototype house in the Boston-Logan area, MA was selected for model simulation. Our study found solar PV-battery systems that maximize the on-peak grid selling can achieve the highest on-peak load reduction and economic benefits. However, they may not result in the highest environmental benefits, as on-peak hours have lower carbon emission and fossil fuel depletion factors as compared with the mid-peak hours in the New England grid. This suggests a potential tradeoff between the need of on-peak load reduction, economic saving, and environmental protection. Installing a PV system alone presents relatively strong economic and environmental performances, but its on-peak load reduction is limited. Installing a battery system but without an effective control strategy might result in relatively weak peak-load reduction, economic, and environmental outcomes. This highlights the importance of effective battery control in the implementation of solar PV-battery systems.
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