low-energydesign
nounUK /ˌləʊ ˈenədʒi dɪˈzaɪn/
US /ˌloʊ ˈenərdʒi dɪˈzaɪn/
Low-energy design means making buildings that use very little power to stay warm, cool, and bright.
The new school uses low-energy design, so its lights and heaters hardly need any electricity.
OTHER MEANINGS
2. A way of planning products or systems so they run on as little electricity as possible.
The engineers chose low-energy design for the phone so its battery lasts for days.
3. The style of a building that keeps heat in and cold out without machines.
With low-energy design, the house stays warm in winter without a big heater.
4. Planning that uses natural light and air instead of electric lights and fans.
Thanks to low-energy design, the classroom is bright from big windows and needs no lamps.