How to choose the right photocells?

Question

Electronics

I don't really understand the case, sorry for the possible stupidity.
The case is as follows:
I calculated that parents need ~ 1.5 kW / day of electricity for the dacha (according to what I read, this is a station with a capacity of ~ 350 W). Priority - cheap and more or less reliable. At least for starters.
How to choose photocells/prefabricated panels? Which is better - ready-made panels like these or is it a bunch of separate elements? If the latter, which ones to choose? Powerful and expensive or cheap , but 10-20 times more in quantity?
PS: So far I've been tinkering with just such an instance, but it's painfully expensive on the scale of a summer residence.

Answer 1

1. It's called solar panels, photocell is something else.
2. Solar panels generate direct current at low voltage, and the vast majority of household appliances are designed for alternating current 220V. To convert, you need an inverter with a correct sine wave.
3. You also need to remember that solar panels do not work at night, and electricity may be needed. But the most important thing is that the maximum power on a sunny day is indicated for the panels, i.e. it may very well be that your sockets will often work at 30-40% of power (and sometimes at 10-15%). Thus, you need to store energy, i.e. You need multiple batteries. The calculation of the power of panels and batteries should be made taking into account the average distribution of cloudy days per year.
4. You shouldn't buy bullshit panels, but you shouldn't overpay either. Look for specialized forums, read who uses what.

Answer 2

Here, look (video yes, but what to do)