Home's energy efficiency refers to how well a house uses energy to provide comfort and functionality. This includes the effectiveness of insulation, windows, and appliances in reducing energy consumption. A more energy-efficient home requires less energy for heating, cooling, and powering devices, which can lead to lower utility bills and a reduced environmental impact. Improving a home's energy efficiency can involve simple changes, such as sealing drafts, upgrading to Energy Star appliances, or installing LED lighting. Additionally, using renewable energy sources like solar panels can further enhance efficiency and sustainability, making homes more eco-friendly and cost-effective over time.