报告时间：4月20日12:30

报告地点：科学园2H216

报告题目：居民电动车和太阳能协同采用的用电行为改变

报告摘要

During the electrification of household energy consumption, there is an increasing number of consumers that purchase both Electric Vehicles (EV) and distributed solar photovoltaics (PV) systems. This study aims to examine the change in electricity demand from the power grid for EV owners when they add distributed solar panels to their homes. The impacts of the two technologies combined are different from the sum of two individual impacts because they may not be additive and EV consumers’ behaviors may be subject to change. We apply a Difference-in-Differences model and compare consumers with or without EVs and also EV consumers with and without additional PVs. We use the hourly electricity demand data for 13,190 households in the Phoenix metropolitan area in Arizona. Our results show that EV consumers, without PV panels, use more electricity compared to non-EV consumers, and their average hourly demand is higher by 0.4 kWh. After adding PVs, EV consumers decrease the average hourly demand from the electric grid by 1.1 kWh. The co-adoption of PVs with EVs helps reduce the system peak hour loads. Besides, we also find evidence of behavior changes when EV consumers shift some of their EV charging from night to day so that they are charging their EVs with more cleaner electricity. The annual monetary savings for consumers after adding PVs are estimated to be ~$930, and the total social savings are estimated to be ~$925. Given the positive co-adoption effects, a policy implication is that incentives should be provided to promote the co-adoption of PVs with EVs.

主讲人简介

梁静，博士毕业于美国马里兰大学公共政策学院，后在普林斯顿大学国际与公共事务学院担任博士后。在能源经济、能源政策、低碳和能源可持续发展等热点研究领域开展了多项研究，取得了有国际影响力的研究成果。主持和参加大型基金项目十余项，包含美国国家自然科学基金项目3项，中国国家自然科学基金项目1项，以及中国国家科技支撑项目1项，累计参加和承担科研项目经费800余万元。在研究成果方面，以第一作者身份发表Nature子刊两篇，并担任其中一篇的共同通讯作者，所发表论文累积影响因子超过190。