Fixed-rate electricity plans lock in your price per kWh for the full length of your contract — typically 6, 12, or 24 months. That means your energy charge stays exactly the same whether summer demand spikes or wholesale prices surge. For Port Isabel households on AEP Texas, a fixed-rate plan is the single best way to protect your budget from price volatility and avoid bill shock during Texas heat waves.
All rates in ¢/kWh for ZIP 78578. AEP Texas delivery fee billed separately. Updated daily from licensed Texas REP data.
| Provider / Plan | 1,000 kWh ★ | Term | Action |
|---|---|---|---|
| Express Energy Flash Value 12 3% Renewable |
6.9¢ | 12 mo | Enroll → |
| Just Energy Smart Choice - 12 31% Renewable |
9.7¢ | 12 mo | Enroll → |
| Txu Energy Smart 1000 Select 12 3% Renewable |
10.9¢ | 12 mo | Enroll → |
| Chariot Energy Bright Nights 12 100% Renewable |
11.9¢ | 12 mo | Enroll → |
| Veteran Energy Basic 12 3% Renewable |
12.2¢ | 12 mo | Enroll → |
| Companion Energy Companion + Perks 12 30% Renewable |
12.3¢ | 12 mo | Enroll → |
| Frontier Utilities Frontier Power Saver 12 30% Renewable |
12.3¢ | 12 mo | Enroll → |
| Gexa Energy Gexa Eco Choice 12 100% Renewable |
12.3¢ | 12 mo | Enroll → |
| Southern Federal Power Llc SoFed Free Energy Lunch - 12 6% Renewable |
12.5¢ | 12 mo | Enroll → |
| True Power True Value 24 15% Renewable |
12.6¢ | 24 mo | Enroll → |
| Tara Energy Balanced Days Bundle - 6 31% Renewable |
12.6¢ | 6 mo | Enroll → |
| Rhythm Digital Choice 12 100% Renewable |
12.7¢ | 12 mo | Enroll → |
| Sfe Energy Texas Inc SFE RewardsPlus - 12 35% Renewable |
12.8¢ | 12 mo | Enroll → |
| Budget Power No Gimmicks 36 24% Renewable |
12.8¢ | 36 mo | Enroll → |
| Constellation Newenergy Inc Simple Switch 6 24% Renewable |
12.8¢ | 6 mo | Enroll → |
| Texans Choice Power Llc Choose 6 37% Renewable |
12.9¢ | 6 mo | Enroll → |
| Ae Texas Smart Secure 36 23% Renewable |
12.9¢ | 36 mo | Enroll → |
| Revolution Energy Llc Stars and Stripes 24 24% Renewable |
13.1¢ | 24 mo | Enroll → |
| Think Energy Think Clean 12 with Smart Thermostat Connected 100% Renewable |
13.1¢ | 12 mo | Enroll → |
| Ap Gas & Electric (tx) Llc TrueClassic 36 6% Renewable |
13.3¢ | 36 mo | Enroll → |
| Infuse Energy Essential Infusion 36 24% Renewable |
13.3¢ | 36 mo | Enroll → |
| Abundance Energy Clean Energy 12 100% Renewable |
13.3¢ | 12 mo | Enroll → |
| Bkv Energy Daisy 13 29% Renewable |
13.3¢ | 13 mo | Enroll → |
| Good Charlie & Co Llc GoodEnergy 36 25% Renewable |
13.4¢ | 36 mo | Enroll → |
| Cleansky Energy Embrace Green 24 - New Customer Special 100% Renewable |
13.7¢ | 24 mo | Enroll → |
| Energy Texas No Bull 36 100% Renewable |
13.7¢ | 36 mo | Enroll → |
| Octopus Energy Llc Octo Simple 14 100% Renewable |
13.7¢ | 14 mo | Enroll → |
| Champion Energy Services Llc Champ Saver-24 25% Renewable |
13.8¢ | 24 mo | Enroll → |
| Spark Energy Llc Choose 15 37% Renewable |
13.8¢ | 15 mo | Enroll → |
| Discount Power Saver 12 24% Renewable |
13.9¢ | 12 mo | Enroll → |
| Cirro Energy Smart Simple 12 24% Renewable |
14¢ | 12 mo | Enroll → |
| Ranchero Power Smart & Fixed - 36 6% Renewable |
14¢ | 36 mo | Enroll → |
| Trieagle Energy Lp Sure Value 36 3% Renewable |
14¢ | 36 mo | Enroll → |
| Base Power Base Energy 36 100% Renewable |
14.2¢ | 36 mo | Enroll → |
| Reliant Reliant Power On 18 15% Renewable |
14.9¢ | 18 mo | Enroll → |
| Atlantex Power Luminous 36 23% Renewable |
14.9¢ | 36 mo | Enroll → |
| Octopus Energy Octo Simple 18 100% Renewable |
15¢ | 18 mo | Enroll → |
| Direct Energy Autopay Texas 24 24% Renewable |
15.4¢ | 24 mo | Enroll → |
| Smartenergy Holdings Llc SmartGreen 9 $200 Bill Credit 100% Renewable |
15.4¢ | 9 mo | Enroll → |
| Heritage Power Llc Bright Start 48 - $75 credit on your first bill! 24% Renewable |
15.4¢ | 48 mo | Enroll → |
| Amigo Energy Basics PTC - 24 31% Renewable |
15.5¢ | 24 mo | Enroll → |
| Green Mountain Energy Company Pollution Free e-Plus 36 Choice 100% Renewable |
16.2¢ | 36 mo | Enroll → |
| Pronto Power Summer 2026 26% Renewable |
16.5¢ | 2 mo | Enroll → |
| Payless Power PTC 12 Month - Prepaid 26% Renewable |
17.4¢ | 12 mo | Enroll → |
★ 1,000 kWh is the Texas standard usage benchmark. Rates include energy charge; TDSP delivery fees billed separately.
Fixed pricing gives you predictability. You know exactly what you'll pay per kWh the day you enroll — and that rate doesn't change until your contract ends. This is especially valuable in Port Isabel, where August temperatures routinely push electricity demand (and spot prices) to their highest levels of the year. Most fixed-rate plans also include a straightforward cancellation fee, so you can switch if a better deal appears.
Compare by what matters most to you.