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Processes to manage waste by reducing the production of waste and reusing or recycling products, which conserves energy and raw materials needed for new products.

Strategies and policies to control energy demand, encouraging consumers to use less energy during peak hours or shift their use to off-peak times.

Incorporating sources of renewable energy such as solar, wind, hydro, and geothermal power into the energy supply mix to reduce reliance on fossil fuels.

A thorough assessment of the energy flow in a building to identify opportunities for enhancement in energy efficiency.

Devices used in motor-driven systems to adjust motor speed to the load requirement, improving energy efficiency and reducing wear.

Techniques and technologies that aim to reduce water consumption, and subsequently energy used for water heating, distribution, and treatment.

Architectural design technique that takes advantage of the sun's movement to maintain a comfortable temperature in the building, reducing the need for active heating and cooling.

Improving the components that separate the interior of a building from the exterior environment (walls, roof, windows, doors) to enhance energy efficiency.

Replacement of traditional incandescent bulbs with more efficient lighting technologies such as LED or CFL to reduce energy consumption.

A method where both electricity and useful heat are simultaneously generated from the same energy source, improving overall thermal efficiency.

An electrical grid that uses information and communication technology to gather and act on information, such as the behaviors of suppliers and consumers, in an automated fashion to improve the efficiency and reliability of electricity distribution.

Utilization of heating, ventilation, and air conditioning systems designed to use less energy while maintaining comfort levels.

Home and office devices that have earned the ENERGY STAR label, indicating that they meet energy efficiency requirements set by the U.S. EPA.

A roof of a building that is partially or completely covered with vegetation and soil, or a growing medium, planted over a waterproofing membrane, which helps in insulation and reduces building heating and cooling costs.