KnowraEnergy efficiencyLinked fromLinked fromThe 51 pages that link to Energy efficiency, each with the reason it gives.All 51Related 37Narrower topic 6Compared with 8Combined heat and powerNarrower topic: CHP can improve overall fuel utilization when its heat output is genuinely useful.Thermal efficiencyNarrower topic: Thermal efficiency is a specific form whose input is heat supplied to an energy-conversion system.Passive coolingNarrower topic: Passive cooling can lower cooling energy demand, but energy efficiency also covers powered systems.Sustainable architectureNarrower topic: It is a central building target, though it does not capture every sustainability concern.Pressure dropNarrower topic: Pressure losses contribute to the energy required to circulate air.Solid-state lightingNarrower topic: Solid-state lighting is widely adopted for reducing electricity used per unit of illumination.