Did you mean to say 4000w? 400w isn’t enough for all that equipment.
Comment on What's your contingency plan for the apocalypse?
PetteriPano@lemmy.world 2 weeks ago
If power is down for good, then getting water is the main priority. If the pumpa don’t run the water tower is losing pressure fast. I have 40 litres jugged up in the basement at all times for the first few days.
When that dries out my neighbour has a well that we’ve hooked up to five properties. Mostly for gardening, but it is potable. The pump needs power, though, so I’d pull an extension cord over to my caravan.
My caravan has 400W of solar, 300Ah LiFePO4 and a 1.5kW inverter. Also a meshtastic node with an antenna on the roof. That’ll keep the food cold, and laptops charged. It can run a microwave or hotplate, too. I’ve got 20kg of propane if I need to conserve power.
zorflieg@lemmy.world 2 weeks ago
- PetteriPano@lemmy.world 2 weeks ago
I don’t power all of it at once, and not direcly off of solar. I could maybe fit another 200W worth of panel on that roof, but for 4000W I’d need seven caravan roofs. That battery is the buffer and it’s a beast. At 300Ah I have 4kWh to pull at 1C.
The fridge sips a nice 30W. Panels put in ~2kWh on a sunny day. So thats a 1.7kWh surplus for running heavy loads - enough to max out that inverter for an hour a day. That’s plenty for microwaving or pumping water.
papagaya@feddit.org 2 weeks ago
Sounds like a nice setup. I’m jealous :D
But shouldn’t that only be a 1.3kWh surplus with the fridge drawing 30W*24h=720Wh?
- PetteriPano@lemmy.world 2 weeks ago
You’re right.
Well, still enough juice to pump all the water we need and heat our meals.
We’ll just have to limit hot showers to once a fortnight. Needs about 800Wh to heat the hot water tank.
jobbies@lemmy.zip 2 weeks ago
Yeah, hadn’t really considered water supply. Thankfully it falls from the sky in abundance here (Scotland) 😅
Surprised I haven’t seen meshtastic mentioned more. Pretty cool for comms if theres no power.
Nice plan with the caravan too. If you need to head out in a hurry you’ve got everything you need on wheels.