Frontier Utilities
Saver Plus 12
Rate
7.40¢
Term
12 Months
$1000 kWh
$74
Rates as of July 2026 · verify on the EFL
- ✓ 30% green
- ✓ $125 bill credit when your usage is at least 1000kWh
- ✓ 60 Day Happiness Guarantee
Best for Low Rates Frontier Utilities in Rio Grande City
Frontier Utilities in Rio Grande City.
Frontier Utilities has 6 plans live on the AEP Texas Central grid serving Rio Grande City. Lowest rate 7.40¢/kWh — about 7.3¢ below the Rio Grande City average.
4.3 · AEP Texas Central grid · 14K residents · Starr County
Frontier Utilities in Rio Grande City
By the numbers.
Lowest here
7.40¢
Frontier Utilities in Rio Grande City
Rio Grande City avg
14.71¢
across all providers
Frontier Utilities plans
6
on AEP Texas Central
100% green
0
renewable plans
What you actually pay in Rio Grande City
Energy charge vs the wires.
Frontier Utilities's cheapest plan in Rio Grande City is 7.4¢/kWh all-in. That number is two parts: Frontier Utilities's energy charge, plus the AEP Texas Central delivery charge — the cost of the poles and wires, set by the PUCT and identical on every plan from every provider on this grid.
Frontier Utilities energy
2.3¢
AEP Texas Central delivery
5.1¢
All-in
7.4¢
At a typical 1,000 kWh month, that's about $74 — including the ~$4.93 AEP Texas Central meter charge. Because delivery is fixed, the only lever between providers in Rio Grande City is the energy charge. Frontier Utilities's best rate ranks #6 of 18 providers on the AEP Texas Central grid.
Top Frontier Utilities picks for Rio Grande City
Best Frontier Utilities plans here.
Frontier Utilities
Saver Value Plus 12
Rate
13.90¢
Term
12 Months
$1000 kWh
$139
Rates as of July 2026 · verify on the EFL
- ✓ 30% green
Frontier Utilities
Light Saver 12
Rate
15.30¢
Term
12 Months
$1000 kWh
$153
Rates as of July 2026 · verify on the EFL
- ✓ 30% green
- ✓ No gimmicks, no bill credits, fixed rate pricing
- ✓ 60 Day Happiness Guarantee
Every Frontier Utilities plan on AEP Texas Central
All 6 Frontier Utilities plans in Rio Grande City.
| # | Plan | Rate | |
|---|---|---|---|
| 1 | Saver Plus 12 | 7.40¢ | View → |
| 2 | Saver Value Plus 12 | 13.90¢ | View → |
| 3 | Light Saver 12 | 15.30¢ | View → |
| 4 | Saver Value 12 | 17.70¢ | View → |
| 5 | Saver Deluxe 12 | 17.90¢ | View → |
| 6 | Saver Premier 12 | 18.60¢ | View → |
Rio Grande City, Starr County — population 14K, sample ZIP 78582. Served by AEP Texas Central (outage line: 1-866-223-8508).
Switching in Rio Grande City
Same wires — new bill from Frontier Utilities.
AEP Texas Central owns the wires in Rio Grande City and processes the switch in 1-3 business days — no service interruption, no truck roll, no new equipment. Frontier Utilities files the switch on your behalf. Same-day if you order before 4-5 PM Central.
Frontier Utilities in Rio Grande City — FAQ
Common questions.
Does Frontier Utilities serve Rio Grande City, TX?
Yes. Frontier Utilities offers 6 plans in Rio Grande City on the AEP Texas Central grid, starting at 7.4¢/kWh all-in. Enrollment is online and service is delivered by AEP Texas Central.
What's the delivery charge in Rio Grande City?
AEP Texas Central charges about 5.1¢/kWh plus ~$4.93/month to deliver power in Rio Grande City. This is set by the PUCT and is identical on every plan — from Frontier Utilities or any other provider — so the only number that actually differs between providers is the energy charge.
Where does Frontier Utilities rank on price in Rio Grande City?
Frontier Utilities's lowest Rio Grande City rate ranks #6 of 18 providers serving the AEP Texas Central grid. The cheapest plan overall in Rio Grande City is 7.1¢/kWh; Frontier Utilities's best is 7.4¢/kWh.
How long does it take to switch to Frontier Utilities in Rio Grande City?
1 to 3 business days. AEP Texas Central keeps delivering power the whole time — no interruption, no new meter, no truck roll. Order before roughly 4–5 PM Central on a weekday and same-day switching is usually available.
More on Frontier Utilities
Explore Frontier Utilities.
Compare Frontier Utilities plans in Rio Grande City
See how Frontier Utilities's 6 plans stack up at your real Rio Grande City usage.
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How enrollment works
You pick the plan here. Enrollment finishes on our secure checkout — same rate, no markup. If you'd rather skip the ZIP entry, Live Link pulls your real usage from Smart Meter Texas in about 30 seconds. Same plans, same checkout, less typing.