I feel confused :S Newbie Question :$

[rdlrn19]

Hi

My name's Ricardo and I'm 20 years old.

I would like to make my own solar panel, but I read in some post that is more expensive to build one than buy one that is created.

I live in a small house, I just use the laptop, the fridge, air conditioning, few bulbs and just that... and my current charge is 220v

So I want to know... which kind of solar panel did I need for my house?

Thanks

PD. If you see some gramatical errors, is because my native language is not English

[Mike90250]

Hi

My name's Ricardo and I'm 20 years old.

I would like to make my own solar panel, but I read in some post that is more expensive to build one than buy one that is created.

I live in a small house, I just use the laptop, the fridge, air conditioning, few bulbs and just that... and my current charge is 220v

So I want to know... which kind of solar panel did I need for my house?

Let's just add up a few numbers, and find out what you need to replace the power company.

Fridge 2KWH day
Air Cond (small window unit, 5K btu) 10KWH day
Laptop (5 hours) .5KW
100W bulbs x 5 1KW

So I'll guess 14 KWH daily usage. to supply this in the 5 solar charging hours in a day, you will need a panel size of about 5KW. There are losses involved in storing to a battery bank, and running the inverter to create power from the batteries.
Battery bank to store 14KWH would be about 30KWH in size, and it would fail in 5 years or less, because of extreme cycles.
30KWH battery bank @ 48VDC would be 625amp hours capacity. That's very large and expensive too.

The best idea is to look into a small, 1KW grid tie system. That will not cost nearly as much, and will reduce your electric bill. It will still be expensive.