The World Cup, Stadium Lights, and the Hidden Energy Use of Football

As the World Cup begins, millions of us will once again be drawn into the spectacle of football. The floodlights, giant screens, television coverage, bars, food, crowds, and noise all create the impression of a stadium at full energy use.

And, of course, match days do use a lot of energy.

The floodlights come on. Catering areas are busy. Bars are open. Turnstiles, payment tills, kitchens, security systems, media equipment, heating, lighting, hot water and ventilation all come together for a few intense hours of activity.

But when you look properly at the energy data for a professional football stadium, match day is not always the main story.

In a detailed energy review of a professional football club, the half-hourly electricity data told a very interesting story. Match days created the biggest peaks in electricity demand, especially winter evening games when floodlights and stand lighting were required. However, across the full year, the 20 home matches accounted for only around 11% of annual electricity consumption.

The remaining 89% came from non-match day activity.

That is the part most people do not see.

A football stadium is not just a building that wakes up for 90 minutes on a Saturday. It is an operational site. It has offices, kitchens, bars, changing rooms, gyms, function rooms, hospitality areas, refrigeration, hot water, laundry, heating, lighting, IT systems, tills, security systems and plant rooms. Some of these areas are used every day. Some are used occasionally. Some may simply be left on because nobody is quite sure who is responsible for switching them off.

That baseline energy use matters.

The stadium had clear match day peaks, but it also had a consistent underlying load across ordinary days. This type of baseline consumption is often where the real opportunity sits. Not because it is dramatic, but because it is constant.

A fridge left running in a bar that is only used on match days does not look like a major issue on its own. A payment till left switched on is not the same as a bank of floodlights. A panel heater without a timer may seem like a small problem. A hot water cylinder running longer than needed may go unnoticed. A walk-in chiller running half empty may simply be accepted as normal.

But when these small loads run every day, every night and every week, they add up.

This is one of the most important lessons in energy management. Peak demand and total consumption are not the same thing.

Match days may create the peaks. Non-match days can create the cost.

For football clubs, this distinction is important because the public perception of stadium energy use is naturally centred on the event. Fans see the lights, catering, screens and crowds. They associate energy use with the visible activity. However, the energy manager has to look at the invisible hours as well: the Monday morning, the Tuesday night, the empty function room, the closed bar, the quiet kitchen, and the refrigeration running in the background.

This is not just a football issue. It applies to many venues: theatres, leisure centres, hotels, schools, universities, conference centres and sports clubs. The big event attracts the attention, but the base load often carries the cost.

For a stadium, the practical measures are not always complicated. They include better timers, clearer switch-off procedures, improved refrigeration control, heating controls matched to occupancy, regular checks of hot water systems, LED lighting upgrades, planned maintenance of air conditioning systems, and staff engagement.

The technology helps, but the process matters just as much.

A simple end-of-day checklist can save energy. Labelling switches can save energy. Knowing which fridges need to be on and which can be switched off can save energy. Reviewing the settings on heating, cooling and hot water can save energy. Giving someone responsibility for energy performance can save energy.

There is also a wider commercial opportunity.

Football stadiums often have large roof areas, car parks and significant electricity supplies. Solar panels, EV charging, battery storage and smart controls can all play a role, but they work best when the underlying energy use is understood first. A solar panel system is more valuable when more of its generation is used on site. EV chargers can become a useful revenue stream. But none of this removes the need to manage the basics.

As football enjoys another global moment through the World Cup, it is worth remembering that sustainability in football is not only about international tournaments, fan travel or the carbon footprint of major events. It is also about the everyday running of clubs, grounds and community stadiums.

The most powerful sustainability work is often not the most visible.

It is not always the floodlights.

Sometimes it is the fridge in the empty bar, the heater in the unused room, the hot water left on too long, or the equipment nobody has been asked to switch off.

Football clubs are important community institutions. They are visible, influential and emotionally connected to their supporters. That gives them an opportunity to lead by example.

So, enjoy the World Cup. Enjoy the spectacle. Enjoy the football.

But when we think about energy use in stadiums, we should not only look at match day.

We should look at the other 345 days of the year.

That is where much of the opportunity sits.

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