Energy efficiency technologies aim to minimize energy usage while maintaining or improving the level of energy services.

While energy efficiency technologies can contribute to energy security by reducing reliance on external energy sources, they do not directly enhance energy security.

The industrial sector often consumes the most energy due to its high demand for energy-intensive processes, such as manufacturing and mining.

The coefficient of performance (COP) is commonly used to measure the energy efficiency of heating and cooling systems.

Passive energy efficiency technologies, like insulation, reduce energy consumption without requiring external energy input.

The high upfront costs of energy efficiency technologies can be a barrier to their widespread adoption, particularly in developing countries.

Energy efficiency standards, rebates, and tax credits are all policy instruments used to promote the adoption of energy efficiency technologies.

Energy retrofitting involves upgrading existing buildings with energy efficiency technologies to improve their energy performance.

While ease of installation may be a practical consideration, it is not a key factor in evaluating the energy efficiency of a technology.

An energy audit involves a comprehensive assessment of a building or system's energy consumption and efficiency.

Active energy efficiency technologies, like variable speed drives, require external energy input to operate.

Energy efficiency standards set minimum requirements for the energy efficiency of specific products.

Government regulations are typically not a key barrier to the adoption of energy efficiency technologies in developing countries.

Energy-efficient construction, design, and architecture all involve the use of energy efficiency technologies in new buildings.

While energy efficiency technologies can improve fuel efficiency and reduce emissions, they do not typically enhance vehicle performance.