Overheads, such as energy, fuel, wage, insurance and other costs, were also taken into account. These parameters were the same for all service-providers.
Samuti on arvestatud jooksvaid kulusid, nagu kulutused elektrienergiale ja kütusele, töötasud, kindlustused jne. Need parameetrid on kõikide teenuseosutajate puhul samasugused.