Power supply at festivals?

That is my first question and I have not yet found a clear answer. How do most of them do it with the power supply at festivals. You have boxes, mixer, lights, refrigerator, cell phones, etc.

The solution I found would be a generator or an energy storage device with solar panels, but very few generators generate enough electricity for everything and solar panels certainly can't keep up.

The plan would have been to take a surround receiver with passive Teufel speakers and play it on 5.1 stereo at full volume. Additionally laptop, 1-2 fairy lights (nothing big) and occasionally cell phones to charge.

I'm happy about your ideas. Stay healthy.

As you said before: PowerBank or Generator.

If you need more than 200-300 watts on a permanent basis, only one generator actually makes sense. This can only be achieved with great effort using wind and solar.

So at our festivals we have generators that are at least as big as a minibus.

For our small private OpenAirs, one from the hardware store is enough.

start at 200 euro up to 600 euro. Bissel be careful if they fluctuate too much and your devices are very sensitive, then take one to smooth the tension.

I only have 3.5 very loud hours with my Teufelbox. So if I don't want to drag myself to death with batteries, the generator and the corresponding amplifier are cheaper. Accordingly, you add petrol every few hours.

Are there power banks for this?

You don't want to have to drag the power banks. And then it ends very quickly.

Is there.

For example, this one has 500 Wh:

https://www.amazon.de/...08RNMX123/

Yes, I think it's called energy storage (in principle a larger power bank) and then usually has a socket

I had also read that this can fluctuate. After I had calculated my required wattage, I was on generators for 1200 euro OoO

What do you need in watts? Haha our up to 100 people OA we really do with such a small generator for 300 takking and if there should be a bit more light etc we take the building generator, no idea what it cost. The devices have all survived so far.

Wow can i have fun for exactly 1 hour: / not really my thing. But good to know that something like that already exists. I'm even better off with my devil boxes, they can do at least 3.5 hours.

It just depends on what you need see my answer). If you only need 250 watts, it's already two hours.
If you can also charge during operation (e.g. Via solar) this will extend the service life.
Are they also available in larger sizes. E.g. With 1000 Wh

Yeah, that's something. But those things weren't used in the past so that you could use them. And as I see, there are those with a relatively high amount of watts in really small sizes. I'm just wondering how long do these things last or when do they break in and at some point they will have to be thrown away. I'll look for test reports. Thanks for the hint. I didn't know it like that before. Except in car size and the towing is impossible lol.

How many watts do you actually need?

I'm at least 2.5kW when the bass is doing its job. In any case, less is consumed. So far we have always driven off with a 3kW and even then it was sometimes the end if we weren't careful. And at about 90KG the dragging was nasty.

"(…) take a surround receiver with passive Teufel boxes with you and play it on 5.1 stereo at full volume. Additionally, laptop, 1-2 fairy lights (…)"

But that's what you call a garden party with moderate volume…

At a festival, amplifiers and lights are operated in the megawatt range. Either a nearby transformer is tapped (already available at fixed festival locations) or several high-performance generators are set up as far away from the stage as possible and operated in parallel because of their own operating volume. These then have to be refueled in the meantime.