Energy-efficient design focuses on creating buildings and products that use less energy while maintaining comfort and functionality. This approach often includes using materials and technologies that minimize energy consumption, such as high-quality insulation, energy-efficient windows, and LED lighting. By reducing energy use, these designs help lower utility bills and decrease environmental impact. Incorporating renewable energy sources, like solar panels or wind turbines, is also a key aspect of energy-efficient design. This not only helps to reduce reliance on fossil fuels but can also lead to long-term savings. Overall, energy-efficient design promotes sustainability and enhances the quality of life for occupants.