Powering Outdoor Events: A Complete Guide to Event Generators

Understanding Event Power Needs

Outdoor events have unique power requirements. Unlike construction sites, events demand clean, stable power — a voltage spike can destroy audio equipment, and a power failure can ruin a entire festival.

Step 1: Audit Your Power Load

List every item that needs power:

• Audio and PA systems: 2-10 kW depending on scale
• Lighting: 1-5 kW per lighting rig
• Food vendors: 3-15 kW per food truck or stall
• Refrigeration: 1-3 kW per commercial fridge
• Ticketing and Wi-Fi: 1-2 kW
• Site lighting and amenities: 2-5 kW

Step 2: Choose a Silenced Generator

For events, noise matters. Standard construction generators run at 75-85 dB at 7 metres — far too loud for audiences.

Look for generators with:

• Canopy attenuation: soundproofed enclosures reducing noise to 60-70 dB
• Super-silenced models: as low as 55 dB at 7 metres
• Dual frequency: 50 Hz output with clean sine wave for sensitive electronics

Step 3: Size for Headroom

Events are unpredictable. Vendors arrive late, extra equipment gets plugged in, and startup surges are common. Size your generator at least 30% above your calculated peak demand.

| Event size | Recommended generator | | --- | --- | | Small (market, single stage) | 20-40 kVA | | Medium (festival, multiple vendors) | 60-100 kVA | | Large (multi-stage festival) | 150-250 kVA+ |

Step 4: Cable Management and Distribution

Never run long cable runs directly from the generator. Use:

• Distro boxes: distribute power safely to multiple circuits
• Armoured cables: for ground runs across walkways
• RCD protection: mandatory for all outdoor circuits
• Cable ramps: protect cables and prevent trip hazards

Step 5: Positioning

Place generators:

• At least 20 metres from audience areas
• Downwind of the event (consider prevailing wind)
• On stable, level ground
• Accessible for refuelling without crossing crowd areas

Have a Backup Plan

For critical loads (refrigeration, medical, stage audio), always have a secondary generator on standby with an automatic transfer switch (ATS). If the primary fails, the backup takes over within seconds.

Fuel Planning

A generator running at 75% load consumes roughly 0.3 litres per kVA per hour. A 100 kVA generator at full load uses about 30 litres/hour. Plan refuelling schedules accordingly and always keep a minimum of 24 hours of fuel on site.

Need Power for Your Event?

Get a quote or contact our team — we deliver, set up, and support silenced event generators across Melbourne and Victoria.