energy-efficient design
nounUK /ˈen.ə.dʒi ɪˌfɪʃ.ənt dɪˈzaɪn/
US /ˈen.ɚ.dʒi ɪˌfɪʃ.ənt dɪˈzaɪn/
A way of making things that uses less power to do the same job.
The new school uses energy-efficient design with big windows and solar panels.
OTHER MEANINGS
2. Planning buildings or products so they waste less electricity and fuel.
Energy-efficient design helped the family cut their electricity bill in half.
3. Using clever shapes and materials to keep heat in or out without machines.
The house's energy-efficient design keeps it cool in summer without air conditioning.
4. A style of engineering that cares about saving power and protecting nature.
Engineers studied energy-efficient design to build a car that goes farther on one charge.