Building energy efficiency: Opportunities to reduce energy consumption in residential and commercial buildings

Energy consumption in buildings: A look at the numbers

According to the International Energy Agency (IEA), buildings and building structures together account for approximately 36% of global energy consumption and contribute nearly 40% of direct and indirect _CO2 emissions. In this context, improving energy efficiency in buildings is one of the most cost-effective ways to reduce greenhouse gas emissions.

‍

Opportunities to reduce energy consumption

Reducing energy consumption in buildings requires a combination of approaches. Here are some of the most effective measures:

‍

Energy-efficient building envelopes:

• Insulation: Effective building insulation can significantly reduce heat loss and thus energy consumption for heating and cooling. Materials such as expanded polystyrene or mineral wool are popular options.
• Windows: High-quality, energy-efficient windows can help minimize heat and cold loss. They provide natural lighting and reduce the need for artificial light.
• Airtightness: An airtight building minimizes unwanted air exchange with the environment and thus contributes to reducing energy consumption.

‍

Energy-efficient systems and devices:

• Heating and cooling systems: The use of highly efficient heating and cooling systems, such as heat pumps, can significantly reduce energy consumption.
• Lighting: Energy-saving LED lights and intelligent lighting systems help reduce energy consumption.
• Household appliances: Energy-efficient appliances reduce energy consumption in daily use.

‍

Renewable energy sources:

• Solar energy: Solar panels on the roof or facade of a building can reduce the need for external energy supply.
• Thermal energy: Systems for generating thermal energy, such as solar thermal systems or heat pumps, can help reduce energy consumption.

‍

Conclusion

Improving the energy efficiency of buildings offers a win-win situation: It not only reduces energy consumption and operating costs, but also contributes to reducing greenhouse gas emissions. While implementing these measures requires an investment, the long-term savings can more than offset the initial costs. Purpose Green offers comprehensive services to improve the energy efficiency of your properties, from energy consulting and the creation of refurbishment roadmaps to energy-related implementation.

‍

(Photo: Envato Elements)