Show Me the Money! A Field Experiment on Electric Vehicle Charge Timing
通过实地实验发现，金融激励能显著将电动汽车充电从高峰时段转移到非高峰时段，减少高峰充电49%，而亲社会信息干预无效；激励取消后行为恢复原状，表明金钱是关键因素。
We use a field experiment to measure the effectiveness of financial incentives to shift the timing of electric vehicle (EV) charging. EV owners respond strongly to financial incentives, reducing charging during peak hours by 49 percent by shifting to off-peak hours. In contrast, a prosocial information treatment has no discernible effect. When financial incentives are removed, charge timing reverts to pre-intervention behavior, reinforcing that “money matters.” Our findings highlight the substantial flexibility of EV charging compared to other forms of electricity demand. Such flexibility has the potential to greatly reduce future electric system costs arising from a rapidly decarbonizing transportation sector.