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Your electricity in zip code 78002 is delivered by CPS Energy. This area is served by a regulated utility.
Atascosa (zip code 78002) is a small community in Bexar County, Texas, served exclusively by CPS Energy — San Antonio's municipally owned electric utility. Unlike much of Texas, this area is not part of the deregulated ERCOT retail market, meaning residents cannot choose an alternative electricity provider. As of March 2026, the average electricity rate in 78002 is approximately 11.5¢/kWh. While provider competition isn't available here, understanding your CPS Energy rate structure, available efficiency programs, and billing options can still make a meaningful difference in what you pay each month. This guide helps Atascosa residents make the most of their energy options within the CPS Energy service territory.
As of March 2026, residents in Atascosa's 78002 zip code pay an average of 11.5¢/kWh through CPS Energy. This rate sits modestly below the Texas statewide average for regulated utility customers, reflecting CPS Energy's scale as one of the largest municipally owned utilities in the United States. Your total monthly bill includes both energy charges and fixed delivery infrastructure costs — both of which are set by CPS Energy and approved through the city of San Antonio's oversight process, not by a competitive market.
For a typical household using 1,100 kWh per month, that translates to a base energy cost of roughly $126.50 before taxes, fees, and any applicable rider charges. Summer months — particularly July and August — tend to push consumption higher due to South Texas heat, which can noticeably increase monthly bills even without a rate change.
Because 78002 is a regulated, non-deregulated market, there are no competitive contract terms to compare — no 6-month, 12-month, or 24-month retail plans from third-party providers. However, CPS Energy does offer optional rate structures worth exploring:
Reviewing your rate plan annually is still a smart practice, even in a regulated market.
Unlike deregulated Texas zip codes — such as those in nearby San Marcos, New Braunfels, or Austin's outskirts served by Oncor or Pedernales Electric — residents in Atascosa's 78002 zip code have no access to competitive retail electricity providers. CPS Energy is the sole provider for generation, transmission, and distribution in this territory. There is no PowerToChoose.org marketplace available for this zip code, and no third-party retail electric providers (REPs) such as Reliant, TXU Energy, Gexa Energy, or Green Mountain Energy operate here.
CPS Energy serves the greater San Antonio metropolitan area, including communities like Atascosa in Bexar County. As a municipally owned utility, CPS is accountable to the City of San Antonio rather than to state regulators at the Public Utility Commission of Texas (PUC). Rate changes require city council approval, providing a layer of local democratic oversight. Delivery infrastructure — poles, wires, transformers, and meters — is maintained exclusively by CPS Energy, and those costs are embedded in your rate rather than listed as a separate TDSP line item as they would be in a deregulated bill.
To report outages, adjust your account, or explore efficiency programs, contact CPS Energy directly at cpsenergy.com or 210-353-2222.
Atascosa sits in southwestern Bexar County, near communities like Lytle (78052), Natalia (78059), and Pleasanton (78064) — some of which fall under different utility territories including Medina Electric Cooperative or AEP Texas. Customers in AEP Texas zones to the south and west do have access to the deregulated market and competitive retail rates. If you own property in multiple locations or are considering relocation, understanding which utility territory applies is critical to knowing whether rate shopping is even an option. For now, 78002 residents are best served by focusing on energy efficiency, CPS rebate programs, and smart thermostat adoption to reduce consumption rather than switching providers.
Set your thermostat to 78°F or higher during Atascosa's intense summer months to significantly reduce your cooling costs on your CPS Energy bill.
Take advantage of CPS Energy's free home energy audits and appliance rebate programs to identify efficiency improvements and reduce your monthly electricity expenses.
Install smart power strips and LED lighting throughout your home — simple upgrades that make a real difference given Atascosa's long, hot summers and year-round energy demands.
Atascosa is served by CPS Energy, a municipally owned utility that operates outside Texas's deregulated retail electricity market. Because CPS Energy is not part of the ERCOT competitive grid, residents cannot select an alternative retail electric provider.
The average electricity rate in Atascosa's 78002 zip code is approximately 11.5¢/kWh as of March 2026. For a household using 1,100 kWh monthly, that's roughly $126.50 in base energy costs before fees and taxes.
CPS Energy's 11.5¢/kWh average is competitive with many deregulated market rates. However, customers in deregulated areas can actively shop for better deals, while 78002 residents cannot — making energy efficiency the primary cost-control lever available.
CPS Energy offers standard residential rates, optional Time-of-Use plans that reward off-peak usage, Budget Billing for consistent monthly payments, and limited prepay options. Reviewing these annually at cpsenergy.com can help optimize your bill.
Yes. CPS Energy provides rebates for smart thermostats, HVAC upgrades, insulation improvements, and energy-efficient appliances. Income-qualified customers may also access bill assistance programs. Visit cpsenergy.com/save for current offers.
Yes. South Texas summers drive significantly higher electricity consumption due to air conditioning demand, typically peaking in July and August. Shifting high-energy tasks like laundry and dishwashing to evenings can reduce costs if you're on a Time-of-Use plan.