Enter your zip code to instantly unlock exclusive Texas energy plans.
Your electricity in zip code 78108 is delivered by CPS Energy. This area is served by a regulated utility.
Residents in the 78108 zip code of Seguin, Texas are served by a regulated municipal utility, meaning the electricity market here operates differently than in deregulated parts of the state. Seguin Electric (SEGE) and CPS Energy together handle both the generation and delivery of power to homes and businesses in this Guadalupe County community of approximately 29,433 residents. Unlike deregulated Texas zip codes where you can shop competing retail providers, 78108 customers cannot choose an alternative electricity supplier. The current average rate in March 2026 is 13.8¢/kWh. While provider choice isn't available here, there are still meaningful strategies residents can use to reduce their monthly electricity costs.
As of March 2026, the average electricity rate in Seguin's 78108 zip code is 13.8¢/kWh — a rate set and regulated by the serving utility rather than determined by market competition. This figure reflects the all-in cost of electricity including both supply and delivery components. For context, the statewide average in deregulated Texas markets often ranges between 12¢ and 16¢/kWh depending on contract type and provider, placing 78108's rate in a moderate range. Because this is a regulated territory, rates are reviewed and adjusted by utility governance rather than fluctuating with spot energy markets. Seasonal demand — particularly during hot Central Texas summers — can influence future rate adjustments, making energy efficiency an important cost-control lever for local households.
Because 78108 is a non-deregulated zone, traditional contract shopping — comparing 6-month, 12-month, or 24-month retail electricity plans — is not applicable here. Residents are billed under the utility's standard tariff rate. However, CPS Energy does offer optional programs such as time-of-use billing structures and budget billing plans that can help households manage costs more predictably. Customers with median household incomes near Guadalupe County's $48,716 average may also qualify for low-income assistance programs through the utility or state-level programs like LITE-UP Texas.
Unlike deregulated zip codes in the Dallas, Houston, or Lubbock markets, 78108 has no retail electricity competition. There are no third-party providers such as Reliant, TXU Energy, Gexa Energy, or Green Mountain Energy available for enrollment in this area. The absence of competition means residents cannot shop for a better rate, but it also means no risk of variable-rate plan surprises or confusing contract terms.
CPS Energy serves as the regulated electric utility for the 78108 area within the San Antonio zone. As a municipally owned utility, CPS Energy controls both the wires/poles infrastructure (the delivery function) and the electricity supply itself. In regulated markets like this one, there is no separation between retail and delivery charges in the way deregulated customers experience — your bill comes from one entity at one regulated rate. To inquire about rate programs, efficiency rebates, or billing assistance, residents should contact CPS Energy directly.
Neighboring Seguin zip codes — including 78155, 78156, and 78109 — share similar regulated market conditions, as the broader Seguin and Guadalupe County area falls outside Texas's deregulated electricity zone. Customers in these nearby zips face the same limited provider options. By comparison, residents in deregulated areas of Central Texas may have access to more competitive pricing during low-demand months like March, but also face more rate volatility. For 78108 households, the focus should be on reducing consumption through weatherization, programmable thermostats, and taking advantage of any utility-sponsored efficiency programs.
Contact Seguin Electric directly — ask specifically about time-of-use rate structures, demand response programs, or any rebates for smart thermostats and insulation upgrades. Municipal utilities often have unadvertised savings programs available to residents who ask.
Seguin summers are long and intense, with heat lasting from May through October. Pre-cooling your home before noon, sealing attic bypasses, and adding radiant barrier insulation in your attic can reduce cooling loads by 15–25% without sacrificing comfort.
Since you cannot switch providers, focus on reducing consumption. A programmable or smart thermostat — set to 78°F when home and 85°F when away — can trim summer cooling bills noticeably given Seguin's 100+ day above-90°F stretch each year.
Consider a home energy audit through the city or a local contractor. Seguin's older housing stock, including many homes built before modern energy codes, often has significant air-sealing opportunities in ductwork and crawl spaces that can cut bills year-round.
Seguin 78108 is served by a regulated municipal utility — CPS Energy — which means the Texas electricity deregulation law does not apply here. Only certain areas of Texas, primarily outside major municipal utility territories, allow retail provider competition.
The average electricity rate in Seguin's 78108 zip code is 13.8¢/kWh as of March 2026. This rate is set by the regulated utility and applies to standard residential service in the area.
In regulated markets like 78108, CPS Energy handles both supply and delivery. There is no separate TDSP delivery charge as seen in deregulated zones — your entire bill is managed under one regulated rate structure through CPS Energy.
Because 78108 is a regulated utility territory, you cannot switch to a third-party green energy provider. However, CPS Energy may offer renewable energy programs or solar incentives directly. Contact CPS Energy to explore available green energy options.
CPS Energy offers budget billing, time-of-use programs, and energy efficiency rebates. State and federal assistance programs like LITE-UP Texas and LIHEAP may also be available to qualifying Guadalupe County households based on income.
Neighboring Seguin zip codes 78155, 78156, and 78109 are similarly served by regulated utilities. Rates across these areas are comparable, as all fall outside Texas's deregulated electricity market and are governed by utility tariff structures rather than retail competition.