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 |
|---|---|---|---|
| Rhythm Rhythm Max Saver 12 100% Renewable |
8.2¢ | 12 mo | Enroll → |
| Discount Power Bill Credit Bundle 13 22% Renewable |
8.4¢ | 13 mo | Enroll → |
| Just Energy Sustainable Days Bundle - 6 31% Renewable |
12.5¢ | 6 mo | Enroll → |
| Tara Energy Sustainable Home Bundle - 6 31% Renewable |
12.5¢ | 6 mo | Enroll → |
| Gexa Energy Gexa Eco Choice 12 100% Renewable |
12.8¢ | 12 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 → |
| Varsity Energy Llc HOMERUN 12 31% Renewable |
13¢ | 12 mo | Enroll → |
| Abundance Energy Straight Forward 12 25% Renewable |
13.1¢ | 12 mo | Enroll → |
| Energy Texas No Bull 12 100% Renewable |
13.1¢ | 12 mo | Enroll → |
| True Power True Value 24 15% Renewable |
13.1¢ | 24 mo | Enroll → |
| Southern Federal Power Llc SoFed Better Rate - 6 6% Renewable |
13.2¢ | 6 mo | Enroll → |
| Budget Power No Gimmicks 24 35% Renewable |
13.2¢ | 24 mo | Enroll → |
| Sfe Energy Texas Inc SFE RewardsPlus - 12 35% Renewable |
13.2¢ | 12 mo | Enroll → |
| Ranchero Power Ranchero Smart & Fixed -6 6% Renewable |
13.3¢ | 6 mo | Enroll → |
| Ae Texas Smart Secure 36 35% Renewable |
13.5¢ | 36 mo | Enroll → |
| Chariot Energy Chariot Choice 36 100% Renewable |
13.5¢ | 36 mo | Enroll → |
| Texans Choice Power Llc Choose 6 37% Renewable |
13.6¢ | 6 mo | Enroll → |
| Good Charlie & Co Llc GoodEnergy 12 26% Renewable |
13.6¢ | 12 mo | Enroll → |
| Infuse Energy Essential Infusion 6 24% Renewable |
13.8¢ | 6 mo | Enroll → |
| Bkv Energy Daisy 12 29% Renewable |
13.9¢ | 12 mo | Enroll → |
| Cleansky Energy Embrace Green 24 - New Customer Special 100% Renewable |
13.9¢ | 24 mo | Enroll → |
| Ap Gas & Electric (tx) Llc TrueClassic 36 6% Renewable |
14¢ | 36 mo | Enroll → |
| Spark Energy Llc Choose 12 37% Renewable |
14.1¢ | 12 mo | Enroll → |
| Think Energy Think Clean 24 With Smart Thermostat 100% Renewable |
14.4¢ | 24 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 → |
| Cirro Energy Smart Simple 12 24% Renewable |
14.5¢ | 12 mo | Enroll → |
| Base Power Base Energy 36 100% Renewable |
14.5¢ | 36 mo | Enroll → |
| Octopus Energy Llc Octo Simple 14 100% Renewable |
14.6¢ | 14 mo | Enroll → |
| Smartenergy Holdings Llc SmartGreen 12 $200 Bill Credit 100% Renewable |
14.8¢ | 12 mo | Enroll → |
| Revolution Energy Llc Stars and Stripes 9 24% Renewable |
14.8¢ | 9 mo | Enroll → |
| Heritage Power Llc Bright Start 24 - $25 credit on your first bill! 25% Renewable |
15¢ | 24 mo | Enroll → |
| Trieagle Energy Lp Simple Savings 28 3% Renewable |
15.2¢ | 28 mo | Enroll → |
| Atlantex Power Luminous 36 35% Renewable |
15.5¢ | 36 mo | Enroll → |
| Amigo Energy Basics PTC - 24 31% Renewable |
15.9¢ | 24 mo | Enroll → |
| Green Mountain Energy Company Pollution Free e-Plus 18 Choice 100% Renewable |
15.9¢ | 18 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 → |
| Constellation Newenergy Inc 12 Month A/C Protect Plus for 2 Units 26% Renewable |
16.2¢ | 12 mo | Enroll → |
| Payless Power PTC 6 Month - Prepaid 26% Renewable |
17.6¢ | 6 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.
Compare by what matters most to you.