Calculate money and CO2 savings Cost saving For every invoice or other document being sent electronically and not on paper, there is an avarage estimated direct cost saving of €3,50 (NOK 30,-) for the sender, and about the same for the receiver. If reciever fully electronically handle incoming invoice after receival, saving are considerably higher. CO2 Savings An analysis made by HATCH Consultants for Converga shows that for every 1 million invoices, up to 800 tonnes of CO2 and 3200 trees can be saved if the invoices are processed digitally. In other words, according to this analysis; you reduce CO2 emissions by 0,8kg pr invoice electronically transmitted.