No sorry, I didn't explain properly
It was an estimate just for your 2 fans, not included the computer, because 500 watt computer consumes a lot of battery especially if used at night; that's why I asked you if you use it at night or day time. So obviously everything will be used at night... which is a problem for your budget as you are going to need a lot of batteries (which are very expensive!)
So, I'm going to estimate first for your fans alone (assuming you buy dc fans) because if you can't afford to buy right now for the pc + 2 fans, at least if you can use solar for your fans you will still save a lot on your monthly bill... it will be 26.400 Kw/h less on your bill
1rst estimation for 2 fans in 12 volts 15 watts each (about 3000 pesos for the 2 fans):
battery 70 Ah (deep cycle)... don't know the price but maybe around 4000 pesos
150 watts solar panels (or 140 watt panel or 3x 50 watt panels or 2x 80 watt panel) cdr king, around 6700 pesos
1 Pwm controller 10 amperes around 1000 pesos
As the fans are in DC, you don't need an inverter!
2nd estimation for 2 dc fans + 500 watts computer, all running 6 hours at night
1 inverter pure sine wave 1000 watts 5000 pesos
600 Ah battery bank 36000 pesos
800 watts panels 60000 pesos
50 amp MPPT controller maybe around 12000 pesos (not sure of the price)
As you see this is a very big setup and it's a minimum (no backup power in case of heavy rain)... So before investing so much, I suggest you to consider changing your pc for a good laptop which will just consume less than 10% compare to your pc...
ooops... I did not see you have a tv pa... well if you really want to push thru with your project, I will give you a new estimate including everything... just think carefully first! Before going for solar, it's always a good idea to try to use appliances less hungry on electricity like laptop instead of pc, led lights instead of cfl, 12 volts fans... and so on!