In search of a better future we can also make changes to our homes. Two popular types of affordable, consumer-friendly GREEN homes are LEED and Net Zero homes. Net Zero homes are relatively new to the market launching a pilot project in Canada in 2013; while LEED labelling has been around longer but only more recently started to label residential homes.
Goals And Purpose
LEED Homes
- Evaluate buildings’ environmental performance to increase the number sustainable infrastructures.
- Does not focus on the final energy performance of the buildings , but focused on materials and techniques used which subsequently can result in energy efficiency.
Net Zero Homes
- Buildings aim to produce as much energy as it uses in a year, by utilizing energy efficient products and sustainable infrastructures.
- Energy Efficiency is measured over time (within a year).
Rating System
LEED Homes
- Rating system is based on sustainable materials and building technique used to construct homes.
- Points are given for positive considerations and systems for sustainability in building designs.
- 4 Levels of LEED Certification:
- Certified
(20-30% less energy than build to standard code) - Silver
- Gold
- Platinum
- Certified
Net Zero Homes
- Rating system is measured on the total energy efficiency of the home — tested by third party companies.
- Different combinations of energy efficient products and building techniques can be used to reach Net Zero energy efficiency levels.
- Must be rated at zero gigajoule (0 GJ) to be qualified for Net Zero labelling. However, if a building is unable to achieve this, other labels under Net Zero
Categories in Rating System
LEED Homes
- Location and Transportation
- Sustainable Sites
- Water Efficiency
- Materials and Resources
- Indoor Environmental Quality
- Innovation in Design
- Energy and Atmosphere
Net Zero Homes
- Energy Consumption
- Space Heating
- Space Cooling
- Electrical Load
- Water Heating
- Ventilation
- [Energy Consumption] – [Renewable Energy] = Net Annual Energy
Conclusion
In conclusion, LEED homes and Net-Zero homes represent two distinct but interconnected approaches to sustainable and environmentally conscious residential construction. While both aim to reduce the ecological footprint of a building, they differ in their specific focus and metrics of success.
LEED homes, certified by the U.S. Green Building Council, emphasize overall sustainability and environmental performance through a comprehensive set of criteria. They promote efficient resource use, reduced waste, and healthy indoor environments, considering factors such as site selection, energy and water efficiency, materials selection, and occupant well-being. LEED homes strive to achieve a high level of sustainability across various aspects of the building’s lifecycle, integrating environmentally friendly practices and technologies.
On the other hand, Net-Zero homes take a more specific approach by targeting energy consumption and production. These homes are designed to generate as much renewable energy as they consume over a defined period, typically on an annual basis. Achieving net-zero energy status involves implementing advanced energy-saving features, such as efficient insulation, appliances, lighting, and renewable energy systems like solar panels or wind turbines.
While LEED homes encompass a broader spectrum of sustainable practices, Net-Zero homes concentrate primarily on energy efficiency and renewable energy generation. However, it is important to note that these two approaches are not mutually exclusive. In fact, they can complement each other, with Net-Zero homes often meeting or exceeding LEED standards in terms of energy efficiency and environmental impact.
Ultimately, whether you prioritize a LEED home or a Net-Zero home depends on your specific goals and values. Both offer substantial benefits in terms of environmental responsibility and long-term cost savings. The choice between them reflects the emphasis you place on broader sustainability considerations versus a laser focus on energy performance. Regardless of the path chosen, both types of homes contribute significantly to a more sustainable and resilient future.