@Twiggy ;
It all depends on how much power I need and also for how long. I use a Square Stand version 1 so I do not usually need alot of power. I have looked into portable candle wax melters for Wax Hands etc and they use a water heater elementand draw upto 1500w. The biggest issue I have even at home is my lack of a cell signal. There I got a HiBoost Cell signal booster for my house. Now I did not some signal to be able to boost the signal. The good thing is now my phone does not continually search for a cell tower and my dropped calls has stopped for the most part. Now since this is at home I can still use Wifi calling and have the internet. For me most of the areas I goto I do have cell signal and have not had to bring the Cell booster.
For power, I make sure my Ipad and cell phone is fully charged, get a few of my longer lasting batteries and an adapter for my dewalt batteries. No generator noise to bother anyone. I also have a 12v to 4000 watt inverter that can connect to a car battery if needed.
I have seen Ultra Quiet generators but have not purchased one since I never got the Hands of Wax making equipment that might require me getting an actual generator. 56 decibals for a 3500 watt 6 horsepower gas generator, $600 Harbour Freight.
I use one of the adapters below that fit a 20v Battery for Dewalt. I have one similar to the $43 one that has one outlet and 2 usb ports. This works for the Version 1 White Square stands but heard it does not work for the Gen 2 stands with the Readers built in. Needs more power I guess. But these dewalt inverters can take 1 to 4 batteries depending how much power or length of time you need. Since I also have these batteries for power equipment and for power tools I just take extras along to change if needed for now. The USB ports are great as I have USB powered String Led lights to attrack attention or if it is getting late in the day. The other thing I had for my trailer was an Inverter like the $119.99 one on the far right in the image. That one connects to a 12v automotive battery and has a 4000 watt inverter that I have used in my cargo trailer for different things that need electricity. The thing I did not realize is that when a buddy helped wire it up, he connected it to the trailer wiring, which connects to the tow vehicles battery also.
These should give you ideas for what you can do when your on location selling off the grid.
I run fully 'off grid' in my pizza truck.
I've got 450ah of batteries under the front seat that are charged when I drive and also via solar on the roof.
Everything in there is designed to be power efficient - so the fridge is a Dometic one that can run in 45ºc temps, but at 12v and consumption (more importantly no spike when the compressor kicks in). The water and ventilation systems and lighting is all 12v and low power.
The only thing that's more power hungry is a salad type toppings fringe but that's only on for a short amount of time. For this I've got an inverter, meaning I can also use an induction ring if needed or have also powered a 2kw hot chocolate machine! Although do need to plug the van in before we go out to make sure it's topped up - that's the only time it's ever charged off the mains.
When it comes to needing to keep dough cool (not temperature controlled, just the 30º+ we've been seeing is too hot) I've used a camping air conditioning unit piped into the dough storage area. That keeps it all cool enough without paying for refrigeration systems for a huge area where they're only needed for a small part of the year.
My internet connectivity comes from a 5g industrial modem that I can mast mount. I've never not got service with this - even when the phone systems can't get it. I did look at starlink but didn't want to give Musk any money and the clear line of sight to the sky can be an issue with a lot of locations I trade.
@Bobbin wrote:
Make sure you get Dometic compressors, they run on DC 12V no additional power conversion.
Dometic are the brand of the fridges, but all there stuff uses Danfoss (think I've spelt that right) compressors.
They also make boat kits that are fantastic as I made a 'fridge' using one of the kits by insulating a cupboard.
