CFE electric bill rate calculation

Your CFE power bill is a bit complicated to read but behind it lies an even more complicated structure for calculating what you must pay.

If you have not already read it the following information will make more sense after you have read: CFE Electric Bill and Rates

The following table summarizes many of those details behind your rate calculation. We are talking only about home use not commercial.

Column 1: You are located in a particular zone which is displayed on your bill. Look at the right side of your bill under Tarifa.

Column 2: This is the average monthly consumption calculated over a 12 month period which you must stay below in order to avoid entering the high consumption price structure (DAC). Notice that in warmer parts of the country that limit is higher.

Column 3 & 4: Your zone is based on the climate in your area. This column shows the minimum average monthly temperature in summer which defines the zone.

Column 5 & 8: There is a price break on the first so many kWh used. These columns give the point at which the price shifts to the higher rate and since that changes by season we have two sections. The next two columns tell you at which level of consumption the basic and intermediate rate applies.

Here is an example: If you live in the Jaltemba Bay area of Nayarit you should read across line 3 of the table. You are in zone 1B with other folks whose minimum average monthly temperature in summer is 28 degrees C or 82 F. If you consume more that 400 kilo watt hours per month on average for a 12 month period you will pay rates defined by the DAC price structure. Below you will see how the price breaks work for winter and summer seasons.

The following example gives rates for the 1B zone. You can look up other zones on the CFE website. Sorry but the website is not set up so I can give you a direct link to the information.

The rates charged are the same for each zone.

But there is an exception for Baja California For example the DAC rate for April in other regions is 1.149. It is 3.191 in Baja California and 3.478 in the southern region of Baja Cal.

There appears to have been a map or a list that defined the zones but the link to it on the CFE website is broken (April 2011). With the help of our friends at Mexconnect.com forum we did manage to find this map but it is from 2003.

It was buried deep inside a senate report in Spanish which also has some cost graphs from the same time period for each zone.