There are two Stationary Combustion calculation methods to choose from:
Amount of fuel consumed in the selected units and fuel type. This is our recommended calculation method as it provides the most accurate results.
Bring Your Own Emissions allows you to upload your own pre-calculated emissions to the Plan A platform. For more information, see here. Please note that when Bring Your Own Emissions is used to upload Stationary Combustion data, the Plan A Sustainability Platform cannot automatically calculate emissions for Fuel- and Energy-Related Activities (Scope 3). If you use Bring Your Emissions for this category, you will, therefore, also need to do the same for Fuel- and Energy-Related Activities.
We recommend calculation methods based on their accuracy but ultimately you should choose a calculation method that fits the data you have access to.
For more information on how to choose a calculation method, read the Choose a Calculation Method article.