The main challenge of this comparison to market average is the rapidly improving performance of appliances, which can make the best energy rating an actual market average (As illustrated by the case of washing machines below). Based on available market data, a NEC scale has been built for each component and each product type, with the best performing available product as the Eco-solution.
Moreover, impacts associated with appliance material use (especially plastics and metals) and end-of-life (significant waste volumes to manage) can be improved via responsible corporate business practices, especially through specific policies that enhance product lifespans, which can be estimated using reliability testing and warranty conditions or effectively measured, in particular for professional equipment.
How the NEC measures the impacts of appliances
In brief, the methodology used to calculate the environmental impacts of appliances is based on available products’ energy and water efficiency, and on qualitative assessment of business practices on a -33% to +33% NEC scale, as the framework impact intensity is moderate.
The primary environmental issues that are both key for the sector and measurable at product category and company level are products’ climate impact, via energy efficiency, products’ water consumption (if relevant, e.g. washing devices), and business practices (products’ warranty and reliability).
+ Product efficiency in term of energy consumption (kWh/unit) and water consumption (liter/unit) via environmental labelling or third-party comparative assessment
+ Business practices: qualitative scale assessing product quality, reliability, lifespan and/or warranty conditions
For instance, built-in obsolescence is assessed via a negative NEC for the business practices component, based on the related lifespan reduction.
[CTAbar:] Learn more about the Appliances Framework. (Button: Request a Handbook)