Vehicle fleets are considered an important context for the deployment of innovations such as electric vehicles and vehicle-to-grid (V2G) technology. Fleet vehicles constitute a significant share of vehicle registrations, yet little research has been conducted into how the make-up of the changing fleet market could influence upscaling of innovations. This paper presents an in-depth study of the fleet market in the United Kingdom that assesses synergies between V2G and vehicle fleets by analysing socio-technical trends. The approach taken allows for analysing the role of users and markets in upscaling socio-technical transitions. The paper provides a system-level account of the fleet market, and shows how changing user characteristics, the rise of telematics, Low Emission Zones and changes to business operations and labour relations present specific drivers and challenges for V2G. It is concluded that use-related changes in the market environment are highly influential in shaping the upscaling trajectory of sustainable innovations such as V2G.

车队被认为是部署创新技术（例如电动汽车和车对网（V2G）技术）的重要环境。车队车辆在车辆注册中占有很大份额，但是，关于不断变化的车队市场的构成如何影响创新升级的研究很少。本文介绍了英国车队市场的深入研究，通过分析社会技术趋势评估了V2G和车辆车队之间的协同作用。所采用的方法可以分析用户和市场在扩大社会技术转型中的作用。本文提供了机队市场的系统级说明，并展示了如何改变用户特征，远程信息处理技术的兴起，低排放区以及业务运营和劳资关系的变化为V2G带来了特定的驱动力和挑战。结论是，市场环境中与使用相关的变化在塑造诸如V2G之类的可持续创新的升级轨迹方面具有很大的影响力。