energy efficiency

Optimized power consumption

Energy efficiency is the ratio of useful output to energy input—getting more work from less fuel or electricity.

An energy-efficient appliance performs the same task while consuming less power than conventional alternatives.

The concept applies across domains: buildings with better insulation, vehicles with higher mileage, industrial processes that minimize waste heat.

We replaced the old furnace to improve energy efficiency.

conservation

insulation

Thermal transfer prevention

double-glazing · caulking · sealants · standby · kilowatt-hours · programmable

sustainability

renewable

Capable of restoration

zero-emission · carbon-neutral · net-zero · eco-friendly · off-grid · decarbonization

rating

R-value

Insulation effectiveness measure

  • U-valueHeat flow rate measure
  • MPGDistance per fuel unit
  • COPUN environmental treaty meeting

watt-hours · benchmarking · compliance

economics

ROI

Profit-to-cost ratio

affordability · budget-friendly · economical · time-of-use · subsidies · financing

technology

inverter

Changes DC to AC

  • cogenerationSimultaneous heat and electricity production
  • VFDMotor frequency controller
Categories
Opposites
resource utilization

energy efficiencywastefulness

Careless use of resources

inefficiency · energy loss · heat loss · dissipation · leakage

consumption ethos

energy efficiencywastefulness

Careless use of resources

conspicuous consumption · overconsumption · extravagance · profligacy · excess

design priority

energy efficiencyraw power

Untempered strength or energy

brute force · power-hungry · peak performance · horsepower · maximum capacity

Family

energy, energetic, efficiency, efficient, energize, synergy, inefficient, energizing, energized

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Positive · Everyday, not technical · Rated G