Average-data method
The average-data method is a calculation approach that is used to estimate scope 3 emissions from purchased products, goods, and services. The method involves using physical units and average emission factors for a particular category, rather than collecting data from suppliers or by using the spend-based method.
With the average data method, a company collects data on the mass of purchased goods or services, for example, kilograms or pounds, or other relevant units. To calculate emissions, the company multiplies the mass by the relevant secondary emission factors, such as the average emissions per kilogram of steel or per liter of fuel. These average emission factors are based on industry averages, life cycle assessment (LCA) studies, or other sources.
The average-data method is a simple and straightforward approach to estimating scope 3 emissions from purchased products, goods, and services. However, while the results are accurate in the sense that they are based on secondary data, they might not be the best reflection of the actual emissions associated with the company's activities.
