If you have those two units for the whole house that's your main culprit. Houses in the island are not insulated for central AC. Two units, unless they are 24-3600btus are too small and will be working over time to try to compensate. Add to that the low efficiency appliances. You may want to try and have someone check that the ac are the correct size and are cleaned regularly. Even with the house been a rental LED lights and using the ac less may help.
I checked ours and since the last reading, we have used 96kWh and the next reading in schedule for March 16th.