700 watts ?

In my case:

10 x 5 watt LED lights = 50 watts although never is there more than 4 on at any one time = 20 watts

3 x TV sets, 2 at 40 watts (32" Samsungs) and on 55" Hisense all coming to 160 watts.

1 x DSTV Explorer = 40 watts.

1 x desktop computer + modems etc = 140 watts

1 x laptop = 60 watts.

Thats a total of 420 watts if everything is running which is highly unlikely.

We had an outage last night and I watched the total output current and it never exceeded 9 amps which is 9 x 24 = 216 watts.

You don't need the fridge for those 2 hours, although the average eco friendly fridge is less than 200 watts so you could add that as well.

My system is designed to run for many hours, so you could halve the batteries and get a smaller 500 watt inverter with only 1 solar panel.

If you looking at saving money, then nothing beats a 5kw generator approx R6000 and another R1000 to have it wired into your house.

Now you just switch off the stove and geyser and run the whole house for R25 per hour (1.5 litres petrol per hour) - bit noisy though

These are some household appliance wattage I measured back then.

http://www.proasm.com/pics/apps1.jpg