Ask Electronics

1st thing to do is to figure out what you need to power. Solar panels are way cheaper than charging and storage. Try to decide how much on-demand power during the dark part of the day you really need. If you can do most of what you need during the sunny part of the day, you can directly power stuff with no need for batteries. It may be that for your use case, you are better off buying 4 times as many solar panels, but no batteries.

Batteries account for 80-90% of total costs and energy invested in an off-grid solar system

https://solar.lowtechmagazine.com/2023/12/how-to-build-a-small-solar-power-system/

@hendrik Aliexpress will have every kind of DC wiring accessory you need for the consumption side, DC-DC converters ( up for battery and laptop charging , and down for USB ) plug and socket adapters.

12v fridges and TVs are a thing now. Most micro form factor PCs have 12 or 19v DC inputs. You can evennrun starlink from DC. 12 Dc Water pumps are cheap even selling small 12/24v Aircon and washing machines. Only thing that really doesnt work is cooking (gas bottle is best)

Watch the Offgrid Garage YT channel, as well as Will Prowse's channel. A lot of these questions and more will be answered.

@hendrik What is this Powerbstation thing? Its just solar panels + charge controller + batteries and some cables. If you must get an inverter but use it only when you absolutely must. Much better is Dc to Dc conversion for most electronics.

I believe it is worth it, but you will have to invest some of your time in research. You need to understand how to properly size your system. For example the MPPT is sized, not only to the specs of the solar panel array (or single panel in your case), but also to the nominal voltage of the battery bank (12V vs 24V). Then, if you want to use that power, you will need an inverter. It is all doable but all-in-one power stations are becoming cheaper and cheaper. You could look at refurbished or wait for sales. It's not much more than a DIY setup. If you do opt for DIY, I would use lithium batteries. Initial cost seems higher but they are ultimately cheaper and safer over time. There are several low-cost brands today that sell lithium close to led-acid prices (li-time, watt-cycle).