Energy efficiency is the ratio of useful energy output to the total energy input of a system. It is a measure of how well a system converts energy into useful work.

Incandescent light bulbs are not energy-efficient because they waste most of the energy they consume as heat. Energy-efficient alternatives include LED and CFL bulbs.

Energy conservation aims to reduce energy consumption by using energy more efficiently and reducing waste.

Energy efficiency reduces greenhouse gas emissions by reducing energy consumption and reliance on fossil fuels.

An energy audit is a systematic assessment of energy use and efficiency in a building or facility. It identifies areas where energy can be saved and provides recommendations for improvements.

Incandescent light bulbs are not energy-efficient and are not commonly used in industrial processes. Energy-efficient alternatives include LED and CFL bulbs.

Energy conversion is the process of converting energy from one form to another. For example, a generator converts mechanical energy into electrical energy.

Incandescent light bulbs are not energy-efficient and are not used in vehicles. Energy-efficient alternatives include LED and CFL bulbs.

Energy consumption is the amount of energy consumed by a system or device over a period of time. It is typically measured in kilowatt-hours (kWh).

Incandescent light bulbs are not energy-efficient and are not commonly used in greenhouses. Energy-efficient alternatives include LED and CFL bulbs.

Energy efficiency is the process of reducing energy consumption without compromising on the level of service or comfort.

Incandescent light bulbs are not energy-efficient and are not commonly used in commercial buildings. Energy-efficient alternatives include LED and CFL bulbs.

Energy efficiency is the process of identifying and implementing measures to reduce energy consumption and improve energy efficiency.

Incandescent light bulbs are not energy-efficient and are not commonly used in residential buildings. Energy-efficient alternatives include LED and CFL bulbs.

Energy intensity is the amount of energy required to perform a specific task or produce a unit of output.