Mex, your summer rates split into basic, intermediate, and high - are subsidized.
If DAC threshold in your zone is 800 kwh bimonthly, and you draw (for example) 600 kwh, you'll pay around 600 pesos bimonthly. A whole 15 greenbacks a month.
Now, if somebody in the same 800kwh zone draws 801kwh bimonthly - there are no more subsidized rates 0.6 peso for the first 300kwh, 0.9 peso for the next 100kwh etc - instead you pay DAC rate 4.7-5.0 pesos per each kwh. Big difference. Note that 801kwh bimonthly should be your average consumption FOR A YEAR, before they kick you up to DAC.
DAC threshold zones are assigned based on the average summer temperature, hotter places will have higher threshold, can be as high as 5,000kwh bi-monthly.
Yes, Kino is drier. That's why I asked.