Where can one find the emissions factors for the grid we connect to, to calculate the amount of CO2 we produce? Or even better, is the figure stored somewhere that we could access?
We don't have that information available to us, you may wish to contact your distributor and find out if this is something that they can help you with.
Emissions factors for electricity grids can typically be found on the website of the relevant grid operator or regulatory authority. Some countries also have centralized databases for emissions factors.