This article presents solutions for improved energy efficiency by adapting a shipping container building in Shanghai for off-grid operation. While this prototype is based on a single unit, larger buildings made from multiple units constructed at factories is the ultimate goal. Previous studies of container buildings have revealed gaps concerning the quality of construction and thermal comfort. In this study, the heat transfer resistance of a typical container building wall has been improved from 1.0 m²K/W to around 3.7 m²K/W by installing Vacuum Insulation Panels (VIP), verified through measurements. VIPs reduce the temperature dependence of the heating need and the thermal bridges from the steel beams. Through validated building performance simulation using the software IDA ICE, the energy use and indoor air quality were examined for different ventilation scenarios and indoor temperature setpoints in Shanghai. A wider range of heating and cooling setpoints outside operation hours, lowering the heating setpoint at night and upgrading to triple glazed windows were found to be the most economic energy saving measures. Combined with roof rainwater harvesting, the possibility of achieving near self-sufficiency of water and electricity in the suburbs of Shanghai shows promise in the quest for a higher degree sustainable living.

本文介绍了通过将上海的一个集装箱建筑改用于离网运行来提高能源效率的解决方案。虽然此原型是基于单个单元的，但最终目标是由工厂中由多个单元构成的更大的建筑物。以前对集装箱建筑的研究表明，在建筑质量和热舒适性方面存在差距。在这项研究中，典型的集装箱建筑墙体的传热阻力已从1.0 m ² K / W提高到大约3.7 m ²通过安装真空绝缘面板（VIP）进行K / W，并通过测量验证。VIP降低了加热需求与钢梁之间的热桥的温度依赖性。通过使用IDA ICE软件进行的经过验证的建筑性能模拟，检查了上海市不同通风场景和室内温度设定点的能源使用和室内空气质量。人们发现，在工作时间以外更广泛的加热和冷却设定值范围，降低夜间的加热设定值以及升级为三层玻璃窗是最经济的节能措施。结合屋顶雨水收集，在上海郊区实现水和电几乎自给自足的可能性显示了寻求更高程度的可持续生活的希望。