Pete C. wrote:
Doing this leaves the generation cost, transmission cost,
distribution cost, fuel cost adjustment, energy optimization cost,
male fertile bovine digestive product cost, and the taxes that
should at least mostly be on these. These would be on a per-KWH
basis.

(Should you find or determine a tax or surcharge or portion
thereof that is on the monthly flat fee as opposed to the per-KWH
related charges, subtract that along with the monthly flat fee. But
if you fail to do that, you should not be off by much.)

2. Divide the result of Step 1 by KWH consumed. That is your actual
per-KWH cost.

(You will be off, very likely only very slightly, if you fail in
Step 1 to account for any surcharges/taxes on non-per-KWH charges.)

--
- Don Klipstein )

No, you have to include every single charge on the bill as it is a
component of the cost you paid per kWh during that billing period.
Whether some portions are fixed charges that don't vary with kWh used
is not relevant, they are still part of the cost you paid for each and
every kWh you used that billing period.

If you are concerned with the cost/savings for changing any particular
appliance, you need to be concerned with the cost of that particular power usage
change, which is not affected by the base charge. So no, you don't want to
include the base charge.