Energy Efficiency in Buildings: A Comprehensive Guide

6 Jan 2023
5 min read
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17 May 2023
5 min read

Introduction to Energy Efficiency in Buildings

In the era of rising energy costs and increasing environmental concerns, energy efficiency has become a critical aspect in the design and operation of commercial buildings. This guide aims to provide a comprehensive understanding of energy efficiency in buildings and the benefits it offers.

The Importance of Energy Efficiency in Buildings

The building sector plays a significant role in energy consumption and carbon emissions. This includes a range of building types, such as offices, hospitals, schools, and more. Therefore, improving energy efficiency in buildings is not just beneficial but necessary for a sustainable future.

Ways to Improve Energy Efficiency in Buildings

Focus on Insulation

The outside envelope of your building should be designed to lower heating and cooling needs. High-performance insulation and non-traditional wall systems can make your building as airtight as possible, reducing energy loss.

Choose the Right Ventilation System

With an airtight building, a proper ventilation system is essential to maintain good air quality and prevent the buildup of moisture. Heat recovery ventilators, for instance, can use the outgoing air from your building to heat incoming air, improving energy performance.

Buy Certified Equipment

Invest in high-performance, energy-efficient systems and equipment. Energy Star certified products, for example, are in the top 15 to 30% of their class for energy performance.

Use LED Lights

Upgrading to LED lighting can help you reduce your energy use by 75% compared to incandescent lighting. Sensors in infrequently used spaces can further cut down on energy use.

ConsiderUpgrading to LEED

The Leadership in Energy and Environmental Design (LEED) standard aims to improve the sustainability of buildings. LEED buildings typically cost about 2% more to build than conventional buildings, but improved energy and water efficiency and a higher occupancy rate means that this additional cost is typically recouped in just a few years.

Benefits of Energy-Efficient Buildings

Energy-efficient buildings offer multiple benefits, including:

  • Long-term energy and cost savings: Lower energy, water, and maintenance costs are a significant advantage of energy-efficient buildings.
  • Lower emissions and overall environmental impact: Energy-efficient buildings have lower greenhouse gas emissions due to their reduced reliance on fossil fuels.
  • Better thermal comfort: Well-designed mechanical systems and building components work together to manage comfortable indoor temperatures.
  • Improved comfort and health: Continuous ventilation and fresh air throughout the building can lead to better well-being with occupants and as a result, a more productive workforce.
  • Higher Value: Businesses and consumers see the value in energy-efficient buildings, and as a result, there is a premium associated with buying or leasing space in well-built, energy-efficient buildings.

Energy Efficiency in New Buildings

Best practices for maximizing energy efficiency in new buildings include integrated design and participation in challenges like the 2030 Challenge and NRCan National High-Performance Building Challenge.

Energy Efficiency in Existing Buildings

For existing buildings, a whole building approach is recommended. This includes energy management best practices, energy management training, and green building certification.

Energy Management Resources for Buildings

Energy management resources for buildings include energy management training, energy management software for new buildings, energy management data, fact sheets, and guides, and benchmarking training resources.

Green Buildings and Their Role in Energy Efficiency

Green buildings take a sustainable and comprehensive approach to improving the energy efficiency of buildings and reducing their carbon emissions. They are an integral part of the energy efficiency landscape.

The Canada Green Buildings Strategy

The Canada Green Buildings Strategy is a national strategy to decarbonize Canada’s building sector by 2050. It's a significant step towards a more sustainable future.

Financial Assistance for Commercial and Institutional Buildings

There are several financial assistance programs available for commercial and institutional buildings looking to improve their energy efficiency. These include financial assistance for ISO 50001 energy management systems, the Codes Acceleration Fund, and the Deep Retrofit Accelerator Initiative.


Energy efficiency in buildings is a crucial aspect of creating a sustainable future. By implementing the strategies and practices outlined in this guide, we can significantly reduce energy consumption and carbon emissions in the building sector, leading to a healthier and more sustainable environment.

Ready to make your building more energy-efficient? Contact us today to learn more about our services and how we can help you achieve your energy efficiency goals.

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