How many watts does the outdoor cabinet of a base station consume

A typical outdoor base station cabinet consumes between 1,500 and 3,700 watts, depending on network generation, equipment load, and cooling requirements.

Typical Power Consumption4

G Base Stations: Standard 4G outdoor cabinets generally consume around 1,000–1,200 watts for the telecom equipment alone, excluding cooling systems. Cooling can add several hundred watts depending on climate and cabinet design. 5G Base Stations: Modern 5G-ready cabinets are significantly more power-hungry, with total consumption reaching approximately 3,700 watts at full load, including rectifiers, batteries, and air conditioning.

This is over three times the power of a typical 4G site due to higher RF power amplifiers, massive MIMO antennas, and advanced processing.

Cooling System Impact

Active Cooling: Compressor-based air conditioners in outdoor cabinets can draw 500–2,000 watts continuously, depending on capacity and ambient temperature. Hybrid or Free Cooling: Using passive or thermosiphon-based systems can reduce cooling energy by 40–70%, especially in temperate climates. Cooling often accounts for over half of the total power draw in 5G cabinets.

Rectifiers and DC Load

Rectifiers convert AC to DC for telecom equipment and typically operate at 96–98% efficiency. Power losses from rectifiers are minimal but must be considered in total energy planning. Outdoor cabinets often include 24 kW rectifiers and 600 Ah lithium battery banks for backup, though actual DC load is lower and depends on active equipment.

Factors Affecting Consumption

Network Generation: 5G sites consume 2. 5–3. 5 times more power than 4G sites.

Equipment Load: Number of antennas, RF amplifiers, and processing units. Climate and Solar Gain: Hot climates or direct sunlight can add up to 500 watts for cooling. Redundancy and Safety Margins: N+1 rectifier configurations and battery backup increase design load but improve reliability.

Summary

For planning purposes, an outdoor base station cabinet typically consumes 1. 5–3. 7 kW, with higher values for 5G deployments and hot climates.

Cooling systems and rectifier efficiency are major contributors to total energy use, and hybrid cooling solutions can significantly reduce operational costs while maintaining equipment reliability.