@Philip, thnks. Did you know that the simple electric kettle consumes 1800Watts?  I don't dispute that LPG is cheaper than electricity costs, but since there's no LPG around what are the options? Expensive power bills or nothing. My design of 15KVA as a base consumption is based on years of using backup supplies and various tests performed to find a suitable balance. It either means you deprive yourself the essentials or just create a proper system to handle almost anything. Also if the cost of the LPG is going to shoot up, then it makes more sense to go full electric, i.e if KPLC can sustain regular supply. No one loves a half-baked cake. :-)
 
 
Here's a document I found just now on the net, gives the basics on KVA usage of devices:
 
http://www.wiltsfire.gov.uk/Fire_Safety/Safety_Advice/fire_safety_electrical_safety.htm
 
HTHs.