Here’s something the audience never thinks about. When the house lights drop and the first note hits, there are 200,000 watts of audio, 500,000 watts of lighting, and 30 tonnes of equipment suspended above their heads. All of it powered, all of it controlled, all of it hanging from structures that didn’t exist 12 hours ago and will be gone 12 hours after the show ends.

The technology that makes this possible has improved enormously in the past decade, and those improvements have made shows both more spectacular and significantly safer. But because it all happens behind the scenes, it rarely gets discussed outside the production community.

I want to change that, because understanding what goes into a show’s infrastructure helps everyone in the industry make better decisions about production investment, venue selection, and safety standards.

Power Distribution Has Grown Up

The Diesel Problem

For outdoor events and festivals, power has traditionally meant diesel generators. Rows of them. Loud, smelly, expensive to fuel, and environmentally appalling. A major festival might burn 50,000-100,000 litres of diesel over a weekend, producing substantial CO2 emissions and local air pollution that affects both crew and audiences.

The diesel generator isn’t dead yet, but it’s being challenged by serious alternatives.

Battery-Hybrid Systems

The most significant development in touring power has been battery-hybrid generator systems. Companies like Firefly Clean Energy and Zenobe have developed containerised battery packs that pair with smaller generators to deliver cleaner, quieter power.

The concept is straightforward. A battery system handles the base load and the peaks, while a smaller generator charges the batteries during lower-demand periods. The generator runs at optimal efficiency rather than idling at partial load, which is where diesel generators waste the most fuel.

Results from touring productions using battery-hybrid systems show 30-50% fuel savings compared to conventional generator setups. Noise reduction is substantial, which matters for productions near residential areas and for crew welfare. The batteries handle load spikes without the voltage fluctuations that conventional generators produce, which audio and lighting engineers appreciate.

Shore Power and Grid Connection

Venues with permanent grid connections are increasingly offering high-capacity power infrastructure that eliminates the need for generators entirely. The Forum in Melbourne, the Hordern Pavilion in Sydney, and several other venues have invested in upgraded power distribution that can support full touring production rigs from the grid.

This is better for everyone. Grid power is cheaper than generator power, more reliable, quieter, and cleaner. The challenge is that many festival sites and temporary venues don’t have grid access, and building temporary grid connections is expensive.

Power Monitoring

Digital power monitoring has transformed how production electricians manage load distribution. Modern power distro systems include real-time monitoring of voltage, current, power factor, and temperature across every circuit. Alerts trigger before overloads occur, and load balancing can be adjusted remotely.

The Entertainment Electricians’ Benevolent Fund has advocated for digital power monitoring standards across the industry, and adoption is growing. The data these systems generate also supports post-event analysis that improves power planning for future shows.

Rigging Technology: Safer and More Capable

Motor Control Systems

The motors that raise and lower lighting trusses, speaker arrays, and scenic elements have gotten dramatically smarter. Modern chain hoist controllers provide precise speed control, load monitoring, and synchronised movement across multiple motors.

Older systems used simple on-off control. You pushed a button and the motor ran at full speed until you released it. Modern controllers ramp smoothly, stop precisely, and can coordinate dozens of motors to move at exactly the same speed, which is essential when raising a 200kg lighting truss that needs to remain level.

Load cells built into modern motors continuously weigh the load on each point. If one motor sees a load increase that suggests a rigging problem, like a chain snagging or a structural element failing, the system can stop automatically before the situation becomes dangerous.

Rigging Software

Before every show, riggers calculate the loads on every hanging point and verify that the building or temporary structure can support them. This used to be done with spreadsheets and hand calculations. Today, software like WYSIWYG and Vectorworks integrates structural analysis with lighting and audio design, showing in 3D exactly where loads will be applied and whether they’re within safe limits.

The integration between design software and rigging calculation means that when a lighting designer adds a fixture, the rigging implications are immediately visible. Overloads are caught during design rather than during the load-in, when changes are expensive and time-consuming.

Automation Systems

Theatre and arena productions increasingly use automated rigging that moves scenic elements during the show. Flying performers, rising platforms, and tracking scenic pieces all require rigging systems with entertainment-grade safety standards, which are more stringent than industrial automation because people are directly underneath and sometimes attached to the moving elements.

Modern entertainment automation uses redundant control systems, overload protection, and position verification to ensure that moving elements go where they should and stop when they should. The technology has enabled shows of complexity that would have been impractical or unsafe ten years ago.

Why This Matters

All of this technical progress serves two goals that should matter to everyone in live entertainment.

Safety: Every improvement in power monitoring, load measurement, and rigging calculation reduces the risk of the kind of catastrophic failures that have killed and injured people in our industry. The stage collapse at the Indiana State Fair in 2011 and similar incidents drive home the consequences of inadequate structural engineering. Better technology means better safety margins, more thorough analysis, and earlier detection of problems.

Sustainability: The live events industry has a significant environmental footprint. Reducing diesel consumption through battery systems and grid connection addresses one of the industry’s largest emission sources. Better power management reduces waste. These aren’t cosmetic improvements; they’re meaningful reductions in the environmental impact of putting on shows.

Production technology doesn’t sell tickets. Nobody buys a concert ticket because the power distribution is efficient or the rigging calculations are thorough. But these systems enable everything the audience does experience, and doing them well is the difference between a great show and a dangerous one.

For venue operators, investing in power and rigging infrastructure isn’t glamorous, but it’s what determines which shows you can host and how safely you can host them. For promoters, understanding production infrastructure helps you choose the right venues and allocate production budgets effectively.

The audience just sees the lights and hears the music. Behind all of it, a lot of very good engineering makes the magic possible.