The wife thinks she's saving money by buying two pounds of corned beef
brisket at $2.69/pound. However, it takes 2 hours to bake at 350F.
Is there a way to convert 350F times 2 hours to kilowatts?
We pay a sliding scale for electricity from 12 cents per KWH for
the first week of the month (or so), to 45 cents per KWH for the
second half of the month, so I can average the electricity to cost
something like 25 to 30 cents per KWH.
But, how many watts does it take to bake?
I realize once I figure out the watts, the rest is easy.
But how do I figure out the watts in an hour at 350F?
Google is your friend....
Also, I think what you're saying is that you have tiered
electricity rates, so that beyond a certain point, you
pay more. If so, I would not use the average rate,
because if you add that additional cooking time, it's
at the incremental, ie higher, cost. Using your $.45
rate and the calculator, gives a cost of $.70
Also, if you're using the oven now, during the winter,
you're also getting free heat for the house from it.
That reduces the true cost.
And boy it must suck to pay those rates. Here in NJ
I'm paying about $.17 and it's one of the highest rates
in the USA.
On Sat, 16 Mar 2013 09:46:36 -0700, firstname.lastname@example.org wrote:
That's a fantastic web site! Thanks.
I just looked up my "tiered" rate for Silicon Valley:
Tier1 = $0.13/kWh up to "baseline"
Tier2 = $0.15/kWh from there to 130% of baseline
Tier3 = $0.30/kWh from there to 200% of baseline
Tier4 = $0.34/kWh from there to infinity
So, it's 34 cents per kWh, not 45 cents (sorry) in California.
Plugging 34 cents per kWh (which is what I'm charged for half the
month) into that calculator, it costs me $0.27 per hour to bake
So, roughly, the cooking costs are 50 cents for that 2 pound corned
beef and cabbage she wants to make for Saint Patty's Day!
The good news is it's much less than I had thought it would be
(I thought it was in the dollars range). That makes buying a
cheaper cut of meat more of an economical alternative than I
had originally assumed.
Thanks for edifying me!
Holly shit are you paying through the nose for electricity.
Here in Ontario (Canada) most of us are now on time-of-day metering,
with the cheapest electricity costing about 7 cents per kwh from 7 pm
until 7 am. During the day there are 2 rates, but even the most
expensive is I think 14 cents.
Do your rates (above) include "delivery" charges? We pay an extra few
cents per kwh to the operator responsible for maintaining the
Don't know where you live in Ontario, but where I live we are paying
just under 20 cents per kwh (and it varies slightly depending upon kwh
usage each billing period) and we're not on 'time-of-day' usage. The
so-called 'delivery charge' exceeds my kwh usage cost. And then there is
all the other miscellaneous charges they add to it. Try dividing your
bottom line by the kwh you used to find out what it's really costing
you. The 7 cents thingy is BS put out by the provincial government to
make you think you're not paying much.
So if you are also in Ontario (you don't say) then you must live in a
low-density, rural area (so you're paying a lot less for property
If you look at this:
You'll see that if you're served by Toronto Hydro (and you're on
time-of-day billing) then you're paying 6.3 cents for off-peak and 11.8
cents for peak rate. On top of that, you're paying about 3.3 cents for
transmission / distribution / regulatory, and a flat $19 per month for
Toronto Hydro to pay their executives a nice big salary.
So including these extra charges, that works out to 15 cents per kwh for
peak demand hours, and 9.6 cents for off-peak.
I think you need to get off the grid - or move to an urban area where
you aren't being gouged paying for electricity. But take heart - at
least you/we are not being screwed up the ass like they are in
It also shows how terribly inefficient cooking can be
Lets say we cook that corned beef to 160F, corned beef has to have a
lower thermal capacity than water which is 1 BTU/lb * F
so roughly we need to raise the temperature of the corned beef 100 F,
for 2 lbs this is 200 BTU or roughly 60W, less than 2 cents of energy at
$0.34/kWHr. An insulated crock pot would waste less energy.
If you eat two pounds of brisket at a sitting, you have no choice but to
cook it all at once.
On the other hand, suppose it costs an extra, oh, TEN DOLLARS to cook the
brisket in advance of mealtimes. You've got to ask yourself is it really
worth it to save the ten bucks?
Remember, if the wife is happy and you're not, you're still happier than if
you were happy and she wasn't.
I'm not sure what the savings comparison is in relation to.
I would think he means cooking your own as opposed to
buying it cooked. If so, they are way ahead. Cooked corned
beef would cost 3X as much. But it's not a 3x savings,
cooking it yourself,
because when you cook it you're probably left with 70%
of what you started with. Still, it's definitely cheaper to
cook your own. And usually much tastier too..
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