In 2022, over half of the web traffic was accessed through mobile devices. By reducing the energy consumption of mobile web apps, we can not only extend the battery life of our devices, but also make a significant contribution to energy conservation efforts. For example, if we could save only 5% of the energy used by web apps, we estimate that it would be enough to shut down one of the nuclear reactors in Fukushima. This paper presents a comprehensive overview of energy-saving experiments and related approaches for mobile web apps, relevant for researchers and practitioners. To achieve this objective, we conducted a systematic literature review and identified 44 primary studies for inclusion. Through the mapping and analysis of scientific papers, this work contributes: (1) an overview of the energy-draining aspects of mobile web apps, (2) a comprehensive description of the methodology used for the energy-saving experiments, and (3) a categorization and synthesis of various energy-saving approaches.

翻译：2022年，超过一半的网络流量通过移动设备访问。通过降低移动端Web应用的能耗，我们不仅能延长设备电池续航时间，还能为节能事业做出重要贡献。例如，若能将Web应用能耗降低5%，据估计足以关闭福岛的一个核反应堆。本文为研究人员和实践者系统综述了移动端Web应用的节能实验及相关方法。为实现这一目标，我们开展了系统性文献综述，最终纳入44篇主要研究。通过对这些科学论文的映射与分析，本文贡献包括：（1）概述移动端Web应用的能耗问题；（2）详细描述节能实验所采用的方法论；（3）分类与综合各类节能方法。