Prices for any single class of electricity customer can vary by time-of-day called TOU or time of use or by the capacity or nature of the supply circuit (e.g., 5 kW, 12 kW, 18 kW, 24 kW are typical in some of the large developed countries); for industrial customers, single-phase vs. 3-phase, etc. Prices are usually highest for commercial and residential consumers because of the additional costs associated with stepping down their distribution voltage. The price of power for industrial customers is relatively the same as the wholesale price of electricity, because they consume more power at higher voltages. Supplying electricity at transmission-level high voltages is more efficient, and therefore less expensive.
There was a time when electricity was electricity.  Like so many other places around America, in Houston, electricity didn’t mean “cheap electricity”.  But you moved into your home and you called the utility and they turned on the power and the bill came in and you paid it every month.  Oh, sure, you might grumble at the amount but then you’d go around and yell at the kids for leaving the lights on and the TV blaring with nobody in the room or maybe you’d look into buying more energy-efficient appliances.  When it came down to it, the Bill was the Bill.  Either you paid the bill or you ate dry packet meals, had cold showers, and watched TV by peering through the neighbor’s window after dark (preferably once they’d turned the TV on).  What’s that?  You want cheap electricity?  Sure thing:  call 1-800-WHO-CARES any time during regular business hours of 2:17am to 3:04am Sundays only.
When it comes to pinpointing specific months rather than seasons, every part of the country has its own highest- and lowest-demand months. For example, hotter states, such as Texas, have their lowest demand anytime between December and March.[2] When it comes to your own location, you can determine typical demand trends by taking a look at your area’s weather patterns or your billing records that showcase your personal monthly demand levels.
The more cool air you lose, the harder your air conditioning unit works and the higher your electricity bill will be. Install blinds, hang curtains or get storm windows made to keep cool air from seeping out. Even mesh screens, on the outside of your home, will help deflect solar radiation. You might even consider replacing old windows that leak cold air and let in heat.
Twenty-nine states have deregulated electricity, natural gas or both. That allows you to shop for the supply portion of your bill from alternative providers who may offer rates lower than the default supplier – usually a utility. Delivery services and billing will remain the responsibility of the local utility as they own the power lines and wires that keep the lights on.
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