Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Energy efficiency refers to the ability to use less energy to perform the same task or achieve the same result. It involves reducing energy waste and maximizing the output of energy sources.
Related terms
Renewable Energy: Renewable energy refers to energy sources that can be replenished naturally, such as solar, wind, or hydroelectric power.
Insulation: Insulation is a material used to reduce heat transfer between spaces, helping to maintain a comfortable temperature indoors and improve energy efficiency.
Smart Grid: A smart grid is an advanced electrical grid system that uses digital technology and communication networks to optimize electricity generation, distribution, and consumption for improved efficiency.