Induction Operating Costs
I haven't been posting here for awhile. But I thought I'd post on our experience after using induction for 2 years now. Mainly on its affect on our utility bills. We installed a 30" E-Lux icon induction cooktop back in Apr 2010. We bought it for $999 used after someone returned it thinking they were buying a radiant cooktop. It has been problem free and we love the cooktop. We gave up a gas cooktop for the induction and never looked back.
Tonight I was cleaning out some old bills and I took the opportunity to do an informal study of the cost impacts on our Gas and Electricity bills. This is by no means scientific, but I was able to get at least 12 months of data before and after the cooktop was installed. There are many things that affect our electricity usage, especaially here in southern Texas. So here is what I found...
Gas: Our house uses gas to heat water and as central heat in the winter. It also ran the old gas cooktop.
16 months of data before the induction was installed we averaged 42.6 CCF/mo (x 100 cubic feet of gas). 15 months of data after the induction was installed our average usage was 30.3. That is a ~28% reduction in gas usage. Now gas is pretty cheap so that is not a huge dollar savings, but it is something. Our billing rate is higher the more gas over a certain threshold is used, so it lowers the amount of expensive gas we use. Sure there are other things that can impact gas usage (winter temp, hot water usage) but averaged over 15 months reduces that. Bottom line, and logically, removing one of three gas applicances saves gas (duh) but I didn't think we used almost 1/3 of our total gas to cook. We are not great cooks and are probably below average cooktop users on this forum.
Electricity: Our house uses electricity for A/C, lighting, oven, etc.. the standard things. Probably the largest user is the A/C and that varies by outside temperature.
In the 12 months before induction we used on average 1,112 kw-hr/mo. In the 15 months after induction we used 1,124 kw-hr. Pretty much a wash. I was kind of surprised. Our cooking habits have not changed. But all the things about induction, faster heating, efficiency, lower radient heat to remove from the kitchen, are all true. Of course there are a lot more things that impact our electricty usage. About the same time I installed the induction I also installed low voltage under cab lighting and we hardly ever use the cans in the ceiling anymore. During this time I also installed some dimmers on other lighting. But at the same time the summer seemed a little hotter down here.
Anyway... like I said this is not scientific so take this as what it is. But if you are worried that induction will jack up your electricity, don't. It might save you a bit on gas though if you are swithcing from gas.