(soft music) - My name is Scott Woodrow.

I'm the Director of Engineering here at AT and T Stadium.

This is more than just a stadium.

This is more like an industrial compound.

We are a closed stadium.

We do have a roof that can open up but it's basically a closed stadium.

- When you're conditioning 3 million square feet of space, energy's gonna get consumed.

- Think about 70,000 humans in a stadium.

Each human gives off about a hundred watts of heat.

But if you're cheering and clapping and stomping your feet and yelling, it might be a little bit more, maybe 125 to 150 watts.

That's like a really hot light bulb.

(crowd cheering) - In the summertimes here in Texas, we can get above 100 degrees Fahrenheit very easily, high humidity.

Game day we won't let it get above 75 degrees in here.

The stadium is actually designed for a peak load of maybe 26 megawatts, which is really high.

There's energy use in the building.

Number one is HAC.

Number two is lighting.

I would probably throw number three as LED boards, which are TVs, mainly 'cause the big one.

Just imagine putting several thousand TVs together.

But then we also have over 3,500 other TVs around the building.

17 megawatt is a summertime Texas preseason game, normally.

- If you have 70,000 people each giving off 100 watts of heat, you get to seven megawatts of heat pretty quickly, which means you need seven megawatts of cooling, which is a big part of that 17 megawatts demand in a stadium.

An individual home might use one to five kilowatts.

So we're talking about 10,000 homes worth of energy just for this one stadium, during one game.

- Sports in a city, no matter what the sport is, football in America, soccer over in Europe, any of the big events, it brings people together.

They have a common goal.

It's an important thing.

Even though we use a lot of energy for that one day we make sure it's for a good cause, for a good reason.

Giving people something to cheer about it.

It keeps a little joy in the world.

- [Announcer] This is power trip.

The story of energy.

(light music)