Not sure which is cheaper, after searching around thought best to ask some smarter people. We have a gas stove that uses 9kg bottles @ $23 per refill, our electricity is 33.25 cents per kWh. Is it more efficient to stick with gas or go electric, assuming all cooking at night (no solar).
Edit..
I'm only interested in the running costs, not the added cost of equipment. Assume I have both of these stoves running on lowest setting to keep water simmering.
https://www.harveynorman.com.au/chef-540mm-freestanding-elec…
vs
https://www.harveynorman.com.au/chef-540mm-freestanding-natu…
I use gas for my cooktop (90cm one), and I go through 9kg a year tops. Maybe even 1.5 years. Assuming heavy daily use, even 6months is a long time. You’d be surprised how long a little bottle lasts!