Energy efficiency aims to reduce energy consumption and minimize environmental impact, leading to lower utility bills, improved air quality, and reduced greenhouse gas emissions.

Energy efficiency focuses on reducing energy consumption while maintaining or improving the level of service or output.

Using energy-efficient appliances consumes less energy to perform the same task, reducing energy consumption and saving money.

Renewable energy sources, such as solar and wind power, do not produce greenhouse gases or other pollutants during electricity generation, making them environmentally friendly.

Wind power is a renewable energy source that harnesses the kinetic energy of the wind to generate electricity.

Energy conservation aims to reduce energy consumption without compromising the level of service or output, often through the adoption of energy-efficient practices and technologies.

Burning fossil fuels releases greenhouse gases and contributes to climate change, making it an unsustainable energy practice.

The high initial investment costs associated with energy-efficient technologies and retrofits can be a barrier to their widespread adoption.

Optimizing building orientation for natural light is a passive energy-efficient design strategy that reduces the need for artificial lighting during the day.

Energy intensity refers to the amount of energy required to produce a unit of output, such as a product or service.

Oxygen is not a greenhouse gas, as it does not trap heat in the atmosphere like carbon dioxide, methane, and nitrous oxide.

Energy audits aim to identify areas where energy consumption can be reduced and energy efficiency can be improved.

Variable speed air conditioners are an example of an active energy-efficient technology that adjusts the speed of the compressor to match the cooling or heating demand, saving energy.

Energy diversification refers to the process of generating energy from multiple sources, such as fossil fuels, renewable energy, and nuclear energy, to reduce reliance on a single source.

Energy efficiency in transportation leads to reduced fuel consumption and lower greenhouse gas emissions, not increased emissions.