The data in this category is sourced from the Energy Star website. This gives CO2 emissions for US appliances that have achieved the Energy Star standard.

There are five drill-downs to be specified in this category: productType, brand, modelName, modelNumber and category. The category is chosen according to the following options.

Category A: <= 40.0

Category B: <= 53.0

Category C: <= 88.5

The user can then specify a quantity of items as a profile item value. This value defaults to 1 if none is entered by the user.

Algorithm

CO2 = Energy usage of appliance per year * US electricity emission factor * quantity