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 Duncanville households on Oncor Electric, 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 75116. Oncor Electric delivery fee billed separately. Updated daily from licensed Texas REP data.
| Provider / Plan | 1,000 kWh ★ | Term | Action |
|---|---|---|---|
| Budget Power Prime 12 35% Renewable |
7.3¢ | 12 mo | Enroll → |
| Discount Power Bill Credit Bundle 13 22% Renewable |
8.4¢ | 13 mo | Enroll → |
| Just Energy Sustainable Living Bundle - 6 31% Renewable |
12.5¢ | 6 mo | Enroll → |
| Amigo Energy Sustainable Lifestyle - 6 31% Renewable |
12.5¢ | 6 mo | Enroll → |
| Chariot Energy Bright Nights 13 100% Renewable |
12.5¢ | 13 mo | Enroll → |
| Frontier Utilities Frontier Power Saver 12 30% Renewable |
12.8¢ | 12 mo | Enroll → |
| Companion Energy Companion + Perks 12 30% Renewable |
12.8¢ | 12 mo | Enroll → |
| Gexa Energy Gexa Eco Choice 12 100% Renewable |
12.8¢ | 12 mo | Enroll → |
| Ap Gas & Electric (tx) Llc TrueClassic 12 6% Renewable |
12.9¢ | 12 mo | Enroll → |
| Varsity Energy Llc HOMERUN 12 31% Renewable |
13¢ | 12 mo | Enroll → |
| Abundance Energy Confident Renter 12 25% Renewable |
13.1¢ | 12 mo | Enroll → |
| Energy Texas No Bull 12 100% Renewable |
13.1¢ | 12 mo | Enroll → |
| Southern Federal Power Llc SoFed Free Energy Lunch - 12 6% Renewable |
13.2¢ | 12 mo | Enroll → |
| True Power True Value 36 15% Renewable |
13.3¢ | 36 mo | Enroll → |
| Cleansky Energy Embrace Green 12 - New Customer Special 100% Renewable |
13.4¢ | 12 mo | Enroll → |
| Constellation Newenergy Inc Simple Switch 7 26% Renewable |
13.5¢ | 7 mo | Enroll → |
| Ae Texas Smart Secure 36 35% Renewable |
13.5¢ | 36 mo | Enroll → |
| Bkv Energy Daisy 12 29% Renewable |
13.8¢ | 12 mo | Enroll → |
| Texans Choice Power Llc Choose 4 37% Renewable |
13.9¢ | 4 mo | Enroll → |
| Rhythm Digital Choice 36 100% Renewable |
14.1¢ | 36 mo | Enroll → |
| Revolution Energy Llc Stars and Stripes 24 24% Renewable |
14.1¢ | 24 mo | Enroll → |
| Spark Energy Llc Choose 12 37% Renewable |
14.1¢ | 12 mo | Enroll → |
| Good Charlie & Co Llc GoodEnergy 36 26% Renewable |
14.2¢ | 36 mo | Enroll → |
| Sfe Energy Texas Inc SFE RewardsPlus - 24 35% Renewable |
14.2¢ | 24 mo | Enroll → |
| Infuse Energy Essential Infusion 36 24% Renewable |
14.3¢ | 36 mo | Enroll → |
| Ranchero Power Ranchero Fixed Prime - 48 6% Renewable |
14.4¢ | 48 mo | Enroll → |
| Octopus Energy Octo Simple 18 100% Renewable |
14.4¢ | 18 mo | Enroll → |
| Champion Energy Services Llc Champ Saver-24 26% Renewable |
14.4¢ | 24 mo | Enroll → |
| Base Power Base Energy 36 100% Renewable |
14.5¢ | 36 mo | Enroll → |
| Cirro Energy Smart Simple 12 24% Renewable |
14.5¢ | 12 mo | Enroll → |
| Octopus Energy Llc Octo Simple 14 100% Renewable |
14.6¢ | 14 mo | Enroll → |
| Think Energy Think Clean 12 100% Renewable |
14.8¢ | 12 mo | Enroll → |
| Trieagle Energy Lp Sure Value 36 3% Renewable |
14.9¢ | 36 mo | Enroll → |
| Heritage Power Llc Bright Start 12 - $25 credit on your first bill! 25% Renewable |
15¢ | 12 mo | Enroll → |
| Atlantex Power Luminous 36 35% Renewable |
15.5¢ | 36 mo | Enroll → |
| Smartenergy Holdings Llc SmartGreen 24 $200 Bill Credit 100% Renewable |
15.5¢ | 24 mo | Enroll → |
| Tara Energy Basics PTC - 24 31% Renewable |
15.9¢ | 24 mo | Enroll → |
| Reliant Reliant Power On 24 Plan 24% Renewable |
16¢ | 24 mo | Enroll → |
| Direct Energy Autopay Texas 36 24% Renewable |
16.1¢ | 36 mo | Enroll → |
| Txu Energy Simple Value 12 3% Renewable |
16.2¢ | 12 mo | Enroll → |
| Green Mountain Energy Company Pollution Free e-Plus 36 Choice 100% Renewable |
16.7¢ | 36 mo | Enroll → |
| Payless Power PTC 12 Month - Prepaid 26% Renewable |
17.4¢ | 12 mo | Enroll → |
| Pronto Power Power To Choose 26% Renewable |
17.9¢ | 1 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 Duncanville, 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.
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