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@hi @asciijungle I don't, at least in part because it keeps evolving almost every day.
I have 12 solar panels on the ground, almost flat, about 5kWp in total, with two chargers and various batteries and power stations. I am building a new battery bank from prismatic cells soon which will take over the hodge-podge of the current setup. I have about 4kWh of capacity which is plenty for everything I need overnight (e.g. fridge), and can cook and even run a small electric heater.
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Electronics on a wooden shelf
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@hi @asciijungle the panels are actually installed rather securely on mounts intended for flat-roof mounting and concrete slabs, if you discount the issues of e.g. missing grounding (soon...) they are actually fairly safe there, I run a long length of 6mm2 DC cabling to the "cottage" where all the batteries and chargers are, which is not very efficient but they produce waaay more than I can handle now anyway so it's not very important.
I plan to co-locate a solar hybrid inverter/battery box next to the panels and just run a single AC wire to the house to power everything from regular wall sockets (which will also get rid of the excess heat and noise).
https://flaki.social/@flaki/116284256507976531
It's completely bonkers to me that 12 solar panels I bought from a supermarket last fall, just plopped on the ground and hooked up to a hodge-podge of off-the-shelf parts (solar chargers, inverters and batteries) provides my small off-grid cabin/tiny house with the same amount of electricity my apartment uses on average (~7kWh).
In Estonia. In March.
Like sure there is the "ThEsUnDoEsNtAlWaYsShInE" crowd and a couple of caveats but, like how is this _not_ a NO-BRAINER for everyone? Like, housing associations of soviet era buildings like my apartment??
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Wide-angle photo of a spring field with dry, dark green foliage broken by a set of dark blue solar panels basking in the early afternoon sun under a clear blue sky.
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Muted: meow
@asciijungle the pricing on the raw panels* is bonkers, if you have the space for them and can source them without needing to order like a whole palette they make amazing value and return-on-investment. That worked even pre-oil-crisis (and particularly if you drive an EV) but they are even more of a no-brainer now. And even up north.
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* (professional) installation will cost you at least 1-3x the price of the raw panels and that's even before full system buildout with wiring, inverters, batteries etc.
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@flaki yeah that is true. And I think its only getting worse.
In germany there is a regulation for "Balcony power plants". I think its time for me to get into that.
i don't have batteries yet, but if i did, my household would already be fully off-grid as of march, covering everything from car charging to heating and cooking.
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@asciijungle @hi yeah have looked into LTO (Lithium-Titanate) because we did need heaters over our cells in the winters but they are too expensive for any significant amount of storage.
We don't/can't feed back into the grid because we are still waiting for our grid connection to be installed... we only got a 10A grid uplink though because basically the only thing I foresee needing it for is "heating and car charging in the winter".
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@hi yeah I still want a small bank for testing at some point.
I think, like for all cells, your best bet is Ali Express. Some vendors have European stock (usually in Poland, Germany or Spain) to ease and expedite shipping. Some established sellers also have their dedicated shop(ify). I ordered my cells from https://hakadibattery.com who seem to have a good track record across the various stores they sell in, but can't vouch for them until I have received the cells myself.