Green Mountain
Pollution Free Conserve 12 Preferred
Rate
17.50¢
Term
12 Months
$1000 kWh
$175
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
Best for Green Energy Green Mountain in Rio Grande City
Green Mountain in Rio Grande City.
Green Mountain has 5 plans live on the AEP Texas Central grid serving Rio Grande City. Lowest rate 17.50¢/kWh.
4.3 · AEP Texas Central grid · 14K residents · Starr County
Green Mountain in Rio Grande City
By the numbers.
Lowest here
17.50¢
Green Mountain in Rio Grande City
Rio Grande City avg
14.71¢
across all providers
Green Mountain plans
5
on AEP Texas Central
100% green
5
renewable plans
What you actually pay in Rio Grande City
Energy charge vs the wires.
Green Mountain's cheapest plan in Rio Grande City is 17.5¢/kWh all-in. That number is two parts: Green Mountain'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.
Green Mountain energy
12.4¢
AEP Texas Central delivery
5.1¢
All-in
17.5¢
At a typical 1,000 kWh month, that's about $175 — 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. Green Mountain's best rate ranks #17 of 18 providers on the AEP Texas Central grid.
Top Green Mountain picks for Rio Grande City
Best Green Mountain plans here.
Green Mountain
Pollution Free Conserve 24 Preferred
Rate
17.50¢
Term
24 Months
$1000 kWh
$175
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
Green Mountain
Pollution Free e-Plus 24 Preferred
Rate
17.70¢
Term
24 Months
$1000 kWh
$177
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
- ✓ 24 month
- ✓ Low fixed price
Every Green Mountain plan on AEP Texas Central
All 5 Green Mountain plans in Rio Grande City.
| # | Plan | Rate | |
|---|---|---|---|
| 1 | Pollution Free Conserve 12 Preferred | 17.50¢ | View → |
| 2 | Pollution Free Conserve 24 Preferred | 17.50¢ | View → |
| 3 | Pollution Free e-Plus 24 Preferred | 17.70¢ | View → |
| 4 | Pollution Free e-Plus 12 Preferred | 17.70¢ | View → |
| 5 | Pollution Free Green Savings Plus 24 Preferred | 21.60¢ | 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 Green Mountain.
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. Green Mountain files the switch on your behalf. Same-day if you order before 4-5 PM Central.
Green Mountain in Rio Grande City — FAQ
Common questions.
Does Green Mountain serve Rio Grande City, TX?
Yes. Green Mountain offers 5 plans in Rio Grande City on the AEP Texas Central grid, starting at 17.5¢/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 Green Mountain or any other provider — so the only number that actually differs between providers is the energy charge.
Where does Green Mountain rank on price in Rio Grande City?
Green Mountain's lowest Rio Grande City rate ranks #17 of 18 providers serving the AEP Texas Central grid. The cheapest plan overall in Rio Grande City is 7.1¢/kWh; Green Mountain's best is 17.5¢/kWh.
How long does it take to switch to Green Mountain 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 Green Mountain
Explore Green Mountain.
Compare Green Mountain plans in Rio Grande City
See how Green Mountain's 5 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.