Oncor Electric Delivery Company · ZIP 76666 Mertens Electricity Rates & Plans for 76666
Rates starting at 8.8¢/kWh from APGE
Compare plans from PUCT-licensed providers available in Mertens, TX.
Oncor Service Area
3,700,000+ Customers
Oncor Electric Delivery Company · ZIP 76666 Rates starting at 8.8¢/kWh from APGE
Compare plans from PUCT-licensed providers available in Mertens, TX.
The lowest electricity rate available in Mertens, Texas (76666) is 8.8¢/kWh from APGE. The Texas average residential rate is 15.8¢/kWh, meaning you could save up to 70% compared to the state average. This area is served by Oncor Electric Delivery Company (Oncor), one of Texas's Transmission and Distribution Utilities regulated by ERCOT.
Rates verified January 10, 2026 • Reviewed by Enri Zhulati
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SimpleSaver 7
7 mo · Lowest price per kWh
Eco Saver Plus 12
100% renewable · 12 mo term
Maxx Saver Value 7
Predictable pricing · 7 mo term
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Oncor is the largest TDU in Texas, serving over 10 million customers across 400+ cities in North, Central, and West Texas. As the transmission and distribution utility for the Dallas-Fort Worth metroplex, Oncor delivers electricity to about 35% of the Texas deregulated market.
Contact Oncor directly for outage reporting. Your TDU handles all power delivery regardless of which electricity provider you choose.
Switching electricity providers in the Oncor area takes just minutes with no service interruption:
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Explore electricity rates in other Oncor service areas near 76666:
The estimated monthly costs are calculated using the usage amount you select and the plan's Electricity Facts Label (EFL). Actual costs may vary based on your specific usage patterns and any applicable taxes or fees.
Many Texas electricity plans include a built-in discount that's automatically applied when you use a certain amount of electricity—typically 1,000 or 2,000 kWh per month. For example, if a plan offers a "$50 discount at 1,000 kWh," you'll see $50 subtracted from your bill in any month where you use 1,000 kWh or more. In months where you use less, you pay the regular rate without the discount. This is great for high-usage households (especially in summer), but be aware that the advertised low rate assumes you'll qualify for the discount. Our 12-month breakdown shows exactly which months you'd receive this discount based on your home's actual usage pattern.
Yes, but you may incur an early termination fee from your current provider. Check your current contract terms before switching. Many plans have no cancellation fees, making it easier to switch when you find a better rate.
Texas has one of the most competitive electricity markets in the US with over 100 Retail Electric Providers (REPs). This competition, enabled by Senate Bill 7, gives you more choices and often lower prices than regulated markets.
About 30 days before your contract ends, your provider will send a "renewal notice"—but it's actually a new rate offer, not a simple renewal. You have three options:
We'll send you a reminder through Compare Power before your contract ends so you can shop for the best rate.
Yes! If the electric bill is in your name, you can switch providers just like a homeowner. Your landlord cannot prevent you from choosing your electricity provider—that's your right under Texas deregulation. If utilities are included in your rent, you'd need to talk to your landlord about switching.
Rate data verified:
ZIP code 76666 is in the Oncor service area. Explore more electricity options for Mertens residents.
Looking for more options? Visit the Mertens electricity page to see all ZIP codes and compare rates for the entire city.
"The content found for my zip code was so helpful in making a decision about switching service. There were lots of options and each had detailed info on terms, how bills are calculated. The choice for size of home was particularly helpful."
"Everything was exceptionally easy, from signing up to getting a quote and to getting connected. In fact, it was so easy I thought for sure I had missed a step. Super easy and quick."
"Before I never knew this many providers and plans with bill credits and free nights/weekends existed! Adding the ability to use last year's monthly usage to find the best new plan makes this perfect for saving money."
