Where festival energy goes: light, sound and carbon at Pallas

At Berlin’s historic E-Werk, electronic music is experienced as a total environment. The former power station’s steel, brickwork and industrial scale give every performance a physical presence, while multiple stages, live sets, club programming and immersive lighting turn the building into more than a concert venue. Pallas sits within that tradition, bringing together Berlin labels and crews for a temporary festival that operates somewhere between a rave, a series of concerts and an extended night at a club.

That atmosphere has an energy cost. Amplifiers, subwoofers, mixing desks, monitors and control systems draw electricity continuously while music is playing. Lighting fixtures, servers, control consoles, haze machines and video elements add a separate load, often changing sharply from one scene to the next. Their carbon footprints depend on how much power they use, where that electricity comes from and how long the equipment operates.

The comparison is more complicated than simply counting fixtures or watts. A powerful sound system may run at a high electrical capacity but consume less than its maximum for much of the night. Lighting can use efficient LED fixtures, yet a large rig may contain hundreds of units, screens and moving components. The most meaningful assessment therefore looks at measured electricity use, operating hours, equipment choices, transport and the emissions intensity of the supply.

For an Australian audience, the practical distinction is familiar. A Melbourne warehouse event connected to the grid has a different emissions profile from a regional festival running diesel generators. The same applies at an E-Werk event: a carbon-neutral operating ambition is credible only when energy consumption, renewable procurement, waste, travel and supplier logistics are considered together.

Why the building changes the calculation

E-Werk’s architecture affects both the creative brief and the technical requirements. Tall rooms and hard surfaces can make sound travel efficiently, but they can also create reflections that require careful system tuning. Designers may need directional speaker arrays, delay fills or acoustic treatment to keep music clear across different areas. These devices draw power, although their demand is usually more predictable than the dramatic peaks produced by lighting effects.

The building can also reduce the need for a completely self-contained visual world. Steel columns, gantries, balconies and textured walls already provide depth and contrast. A lighting designer can use narrow beams, side light and carefully placed sources to reveal the venue rather than flooding every surface with brightness. That approach may support the festival’s aesthetic while lowering the number of high-output fixtures required.

Sound reinforcement remains central to the audience experience. Sub-bass demands substantial amplifier capacity, especially for techno, electro and other club-focused programming. Yet amplifier ratings are not the same as energy consumption. Modern systems use switched-mode power supplies, efficient amplification and limiters, while musical content has pauses, transients and frequency patterns that affect the average load.

What the sound system actually consumes

A sound system’s electricity use begins with the signal chain: digital consoles, stage boxes, wireless equipment, network switches and monitoring. The main demand usually comes from power amplifiers driving subwoofers, line arrays, front fills and monitors. A system specified with a high peak capacity is designed to handle sudden transients without distortion, not to draw that peak continuously.

For a festival such as Pallas, the relevant measure is kilowatt-hours across the full programme. A smaller room with a dense dancefloor may consume less than a large concert stage, even if both sound loud, because the size and number of amplifier racks differ. Idle periods, changeovers and soundchecks also matter. Metering each stage can show whether the biggest energy use comes from the headline room, continuous background systems or temporary production activity.

Audio engineers can lower demand without weakening the performance. Efficient loudspeaker design, accurate system tuning and sensible sub-bass management reduce wasted output. Good coverage means fewer speakers need to be pushed excessively to reach distant corners. Keeping the sound pressure level within a carefully controlled range also helps protect hearing and reduces the temptation to compensate for poor coverage with more amplifier power.

The sound system’s carbon effect is therefore often steady and operational. It rises with stage size, programme length and bass requirements, but it tends to be easier to forecast than lighting. If the venue uses grid electricity with a low-carbon supply contract, each kilowatt-hour carries a smaller footprint; if temporary generation is involved, fuel type and generator efficiency become decisive.

How lighting creates peaks and complexity

Lighting loads can be surprisingly variable. An LED wash fixture may consume far less than an older discharge lamp, but a modern festival rig can include moving heads, strobes, blinders, lasers, pixel bars, control desks, media servers and LED screens. When many fixtures are used simultaneously, the instantaneous demand can exceed the average load by a wide margin.

The carbon impact of lighting is linked to both power and behaviour. A fixture running at ten per cent for a slow transition consumes very little compared with the same fixture operating at full output during a peak-time drop. Strobes and blinders may be used for seconds, while architectural lighting and screens remain active for hours. Programming scenes around musical structure can make the visual experience intense without keeping every unit at maximum brightness.

LED technology has changed the equation, but efficiency should not be treated as a free pass. Replacing a single high-wattage lamp with a lower-wattage LED is beneficial; installing many more fixtures because they are efficient can erase part of that gain. Screens are another significant factor. Large, bright LED walls can use substantial power, particularly when displaying white content or high-brightness imagery.

Lighting also carries embodied emissions. Fixtures, truss, cabling, control hardware and transport have a manufacturing and logistics footprint that is not captured by the venue’s electricity meter. Reusing equipment across touring productions, renting locally and designing a rig that fits the architecture can reduce those indirect emissions. A temporary festival has an advantage when its suppliers can share equipment between events rather than shipping a bespoke installation long distances.

Comparing carbon rather than spectacle

A fair comparison requires three separate measures: electrical capacity, actual energy consumption and emissions per unit of energy. Capacity tells organisers whether the site can handle the load. Kilowatt-hours show how much electricity was used. Carbon dioxide equivalent, or CO2e, estimates the climate impact after the energy source and other relevant emissions are included.

A sound system may have the larger continuous load, while lighting may create higher short-term peaks. In another configuration, an extensive LED screen and moving-light package can overtake audio over the full night. There is no universal ratio between the two. The result depends on stage count, room size, set duration, brightness levels, equipment age, programming and the venue’s electricity supply.

For Pallas, submetering would make this distinction visible. Separate meters for audio, lighting, video, catering, refrigeration and general production could show which activities dominate. Measurements should cover setup, rehearsal, doors, performances, changeovers and pack-down, not only the hours when the audience is inside. This prevents a short but intense lighting peak from being confused with the total energy used across the event.

The Australian comparison is useful because local power systems vary widely. A Sydney venue supplied through the eastern grid does not have the same emissions factor as a site drawing electricity in Tasmania, where hydro generation has historically played a larger role. A Brisbane event using diesel gensets during a hot evening faces another set of constraints, including fuel delivery, cooling loads and local noise limits. These differences make transparent reporting more useful than a simple claim that one production department is always greener.

The hidden load around the stages

Audience comfort and venue operations can rival creative equipment. Ventilation, air conditioning, refrigeration, bars, ticketing systems, toilets, security infrastructure and back-of-house lighting may run for longer than the headline sets. At a packed indoor event, ventilation is especially important: fresh-air requirements and heat from bodies, amplifiers and lights can add a large base load.

Timing influences this hidden demand. A well-coordinated crew can bring systems online only when needed, shut down unused rooms and avoid leaving screens or fixtures active during long gaps. The staff choreography behind a complex event is therefore connected to energy performance as well as safety and smooth operations. A precisely managed changeover can reduce idle equipment without disrupting the audience experience.

Travel and freight remain major parts of the festival’s overall footprint. International artists flying to Berlin, local crews commuting across the city, equipment trucks and temporary accommodation can outweigh the electricity used by a single stage. That does not make stage power irrelevant; it means energy reporting should sit within a broader carbon inventory rather than being presented as the whole story.

For Australians, this is a familiar festival tension. An event in Sydney or Melbourne may rely on local technicians and established hire companies, while a remote gathering in Western Australia can face long freight routes and generator dependence. Even the distance between metropolitan venues and regional audiences changes the calculation. Local sourcing, shared freight and public transport access can sometimes deliver larger reductions than shaving a few watts from an LED fixture.

Designing intensity with fewer resources

Environmental responsibility does not require a visually quiet festival. It requires more deliberate use of intensity. Lighting designers can prioritise contrast, movement, colour and shadow instead of constant brightness. Narrow beams can make a room feel larger, while reflective surfaces and existing architecture can multiply the effect of a modest number of sources.

Audio design benefits from the same principle of precision. A properly aligned system can deliver consistent bass and clarity without excessive output at the front of the room. Cardioid subwoofer arrangements can reduce energy sent into unwanted areas, while zoning allows different spaces to operate at appropriate levels. These choices improve audience comfort and can lower the amount of power needed to achieve a convincing sound field.

Scheduling also offers an opportunity. An afternoon programme can use daylight or lower visual intensity before the main evening sessions, with equipment brought up progressively as the event changes character. Pallas’s afternoon warm-up reflects how a staged programme can build energy over time rather than demanding peak production from the first moment. Fewer rooms operating at full technical capacity during quieter periods can reduce both consumption and unnecessary wear.

Reusable show files, modular rigs and venue-specific production plans help preserve creative quality from one edition to the next. Instead of treating sustainability as a restriction applied after artistic decisions, organisers can make power budgets part of the design process. The result can be a more coherent show, because every bright moment or sonic impact has a clearer purpose.

Making carbon claims meaningful

A carbon-neutral event statement should explain its boundary. Does it cover venue electricity, fuel, artist travel, staff commuting, freight, catering, accommodation and waste? Does it use actual meter readings or estimates based on equipment specifications? Are renewable energy certificates, offsets or supplier declarations involved? Clear answers allow audiences and partners to judge progress without mistaking a marketing label for a complete measurement.

Renewable electricity can reduce operational emissions substantially, but procurement needs scrutiny. Grid supply, green power contracts, battery systems and temporary generators each have different accounting rules. Batteries can reduce local noise and exhaust, although their own production and charging source still matter. Biofuels may lower some emissions compared with fossil diesel, but availability, traceability and land-use impacts must be assessed.

The most useful reporting separates direct reductions from compensation. Efficient equipment, shorter operating times, local suppliers and lower travel emissions reduce the underlying footprint. Offsetting may address residual emissions, but it should not hide high energy use or uncertain data. Publishing energy per stage, energy per attendee and total CO2e would give Pallas a stronger basis for comparison between festival editions.

The central finding is likely to be specific rather than universal: sound may provide the larger steady electrical demand, while lighting and video create sharper peaks and greater variability. At E-Werk, the building, programme and technical design can shift that balance from one room to another. What matters is measuring the whole production and then changing the choices that have the largest effect.

The clearest lesson is simple: carbon comes from the kilowatt-hours, the source of those kilowatt-hours and everything required to put the show in the room. Powerful sound and immersive lighting can coexist with responsible production when their energy use is measured, shaped and reported honestly.