As global energy demand continues to rise and the importance of sustainability gains prominence, the pursuit of efficient energy recovery and harvesting techniques in domestic applications has become paramount. This special topic explores the latest advancements, challenges, and opportunities in harnessing energy from various sources within residential settings. From waste heat recovery to solar and kinetic energy harvesting, the papers within this collection delve into innovative technologies, system designs, and integration strategies that enable the effective capture, conversion, and utilization of energy resources. Through a multidisciplinary lens, this special topic fosters a deeper understanding of the potential for energy autonomy and reduced environmental impact in households. Researchers, engineers, and policymakers will find valuable insights into the evolving landscape of energy recovery and harvesting, with the goal of realizing sustainable and self-sufficient domestic energy ecosystems.