Energy-efficient hardware design focuses on creating electronic devices that consume less power while maintaining performance. This approach involves optimizing components like processors, memory, and power supplies to reduce energy waste. Techniques such as using low-power materials and advanced cooling systems help minimize energy consumption. Additionally, energy-efficient hardware often incorporates features like dynamic voltage scaling and sleep modes, which adjust power usage based on demand. By prioritizing efficiency, manufacturers can lower operational costs and reduce environmental impact, contributing to sustainability efforts in the tech industry, including initiatives by organizations like Energy Star.