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Table 5: Capex and Opex Savings for Different NetworkDeployment ModelsChapter 6Capex savingsOpex savingsOrder ofsavings(to be scaledwith reachof sharing)Site sharing• Site acquisitioncosts• Site preparationcosts (civil works,tower/pole, room/container)• Site rental costs• Site administrationcosts• Basic sitemaintenance costs(tower checks,cleaning etc.)~10%Infrastructuresharing• Above, and...• Infrastructurecosts (power,aircon, alarms,antennas,feeders)• Electricity costs(aircon etc.)• Further sitemaintenance costs(infrastructure)~16-20%Telcoequipmentsharing• Above, and...• Telco equipmentcosts (cabinets,transmissionequipment,TRAUs/BSCs)• Opimization costs• Electricity costs(telco equipment)• Maintenance costs(telco equipment)• Transmission costs• Operation costs~25%Nationalroaming• Above, and...• Further telcoequipment costs(cabinets, TRXs,TRAUs/BSCs)• Opimization costs• Electricity costs(telco equipment)• Maintenance costs(telco equipment)• Operations costs• Possibly radiolicence costs~30%Full sharing• Above, and...• Further telcoequipment costs(core network,core transmisionnetwork)• Related rental,electricity,Maintenance costs• Operation costs~40%Source: IADB/World Bank.77