Constellation
12 Month (No Min Usage Fee)
Rate
12.80¢
Term
12 Months
$1000 kWh
$128
Rates as of September 2026 · verify on the EFL
- ✓ 30% green
Best for Reliability Constellation in Karnes City
Constellation in Karnes City.
Constellation has 2 plans live on the AEP Texas Central grid serving Karnes City. Lowest rate 12.80¢/kWh — about 1.7¢ below the Karnes City average.
4.6 via Google · AEP Texas Central grid · Karnes County
Constellation in Karnes City
By the numbers.
Lowest here
12.80¢
Constellation in Karnes City
Karnes City avg
14.48¢
across all providers
Constellation plans
2
on AEP Texas Central
100% green
0
renewable plans
What you pay in Karnes City
Energy charge vs the wires.
Constellation's cheapest plan in Karnes City is 12.8¢/kWh all-in. That number is two parts: Constellation'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.
Constellation energy
7.7¢
AEP Texas Central delivery
5.1¢
All-in
12.8¢
At a typical 1,000 kWh month, that's about $128 — including the ~$4.93 AEP Texas Central meter charge. Because delivery is fixed, the only lever between providers in Karnes City is the energy charge. Constellation's best rate ranks #11 of 17 providers on the AEP Texas Central grid.
Top Constellation picks for Karnes City
Best Constellation plans here.
Constellation
12 Month GREEN (No Min Usage Fee)
Rate
13.40¢
Term
12 Months
$1000 kWh
$134
Rates as of September 2026 · verify on the EFL
- ✓ 30% green
Karnes City, Karnes County, sample ZIP 78118. Served by AEP Texas Central (outage line: 1-866-223-8508).
Switching in Karnes City
Same wires — new bill from Constellation.
AEP Texas Central owns the wires in Karnes City and processes the switch in 1-3 business days — no service interruption, no truck roll, no new equipment. Constellation files the switch on your behalf. Same-day if you order before 4-5 PM Central.
Constellation in Karnes City — FAQ
Common questions.
Does Constellation serve Karnes City, TX?
Yes. Constellation offers 2 plans in Karnes City on the AEP Texas Central grid, starting at 12.8¢/kWh all-in. Enrollment is online and service is delivered by AEP Texas Central.
What's the delivery charge in Karnes City?
AEP Texas Central charges about 5.1¢/kWh plus ~$4.93/month to deliver power in Karnes City. This is set by the PUCT and is identical on every plan — from Constellation or any other provider — so the only number that differs between providers is the energy charge.
Where does Constellation rank on price in Karnes City?
Constellation's lowest Karnes City rate ranks #11 of 17 providers serving the AEP Texas Central grid. The cheapest plan overall in Karnes City is 6.8¢/kWh; Constellation's best is 12.8¢/kWh.
How long does it take to switch to Constellation in Karnes 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 Constellation
Explore Constellation.
Compare Constellation plans in Karnes City
See how Constellation's 2 plans stack up at your real Karnes 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.