Although I do have a monitor (I imported a Flukso - Flukso.net), its fairly easy to work out usage without one.
You'll probably find your monthly bills are fairly similar month to month.
Just tally up whats in use, and their wattage., or look at the monthly bill, and look at your usage.
Usage for the month / 30 = your daily average. You'd need to generate at least the average in Winter to run the house.
Summertime you'll generally generate more than you'll use (solar is like that).
Prime candidates for heavy use are electrical heating or motor related - eg geyser, and washing machines, dishwashers, pool pumps, electric cookers. Air Conditioners, Electrical heating etc
Kettles are also high usage. 5 min to boil that kettle may be costing you R0.17c a pop.
2KW = R3/hr (or more if > 600KW) @ 5min = R0.17 per boil
Fridges/ Freezers etc are steady loads (although will peak higher when the compressor kicks in), ours are about 250w or so each hourly. Thats R270 a month each.
Computers are generally similar in load.
TV's are getting better, especially if you have LED backlight LCD's, I've seen large sized 50+" screen only using 100W's or less.
Most equipment will have a watt rating for use.
Lighting can be high too, especially if you have Halogens or other highly inefficient lighting. A 100W outdoor spotlight running for 12hrs a day is 1.2KW a day. Thats R1.8 a day or R54 a month. Per spotlight.
Similar for kitchen lighting - if you have lots of those 60w spotlights, remove and replace with 5w leds. You'll generally save the cost within the first month...
First thing is to lower the loads you have, as thats the cheapest route to saving money you can make.
Once you've done that, then, and only then look at solar or other generation.
