@Areba,
 
Lets do the calculation, as there's no substitute at the moment e.g LPG.
 
- A 4 plate electric cooker, with an oven = At least 5KVA with all the plates on and a nice cake baking in the over. Duration = 2 hours.
 
- A deep freezer compression motors : Startup surge @least 3-5KVA, then stabilizing to about 1.5/2.5KVA depending on Motor Hp.
 
 
Where's the microprocesssor versus the diode in this?  :-))
 
 
Kindly elighten more..
 
Rgds.