6. The costs incurred as a result of hosting cross-border flows shall be established on the basis of the forward looking long-run average incremental costs, taking into account losses, investment in new infrastructure, and an appropriate proportion of the cost of existing infrastructure, as far as infrastructure is used for the transmission of cross-border flows, in particular taking into account the need to guarantee security of supply.
6. Stroški, nastali zaradi prevajanja čezmejnih pretokov, se določijo na podlagi predvidenega dolgoročnega povprečja dodatnih stroškov, ob upoštevanju izgub, naložb v novo infrastrukturo in ustreznega deleža stroškov obstoječe infrastrukture, če se ta infrastruktura uporablja za prenos čezmejnih pretokov, zlasti ob upoštevanju potrebe po zagotavljanju zanesljivosti oskrbe.