Texas Electricity.Plain English.
Everything you've ever been too embarrassed to ask about how Texas electricity works.
How does deregulated electricity work in Texas?
Texas is one of 16 U.S. states with a deregulated retail electricity market. Your local wires company (the Transmission & Distribution Utility, or TDU, Oncor, CenterPoint, AEP, TNMP) still owns the poles and delivers power to your home. But you, the homeowner, pick the retail electricity provider (REP) who actually sells you the electricity. Over 100 REPs compete for your business, which is why prices vary so much plan to plan.
Why are advertised rates misleading?
An advertised rate is usually the lowest-cost slice of a plan, not the total cost. The Public Utility Commission of Texas requires every plan to publish its Electricity Facts Label (EFL) with tiered rates at 500, 1000, and 2000 kWh. The 'headline' rate you see in ads is often the cheapest tier. If your household uses a different amount of kWh, your effective rate (and bill) is completely different. Voltcheckr calculates the real all-in cost based on YOUR usage, not the marketing headline.
What is an ESI ID and where do I find it?
Your ESI ID (Electric Service Identifier) is a 17-digit number that uniquely identifies the meter at your address. It always starts with '10'. In Dallas-Fort Worth (Oncor) it starts with 1044. In Houston (CenterPoint) it starts with 10089. Find it on your current electricity bill, usually near your account number, sometimes in small print. If you can't find it, call your current provider and ask; they'll read it off in 30 seconds.
How do I actually switch electricity providers?
It's easier than you think. Pick a new plan on Voltcheckr and enroll on the supplier's site. For a standard provider-to-provider switch, your new provider files the change through ERCOT (the Texas grid operator) and your old plan ends on the switch date — usually within 1–3 business days, with no service interruption. You'll need your ESI ID and basic contact info. One thing to check first: if you're still under contract, your current provider may charge an early termination fee — review your current plan's Electricity Facts Label (EFL) before you switch.
Will I pay an early termination fee?
Only if you're inside a fixed-term contract and still more than 14 days from its end date. Typical ETFs in Texas run $150–$295, often a flat fee regardless of how long you've been on the plan. If you're on a month-to-month or variable-rate plan, there's no ETF. Voltcheckr surfaces your ETF (if you enter it) and subtracts it from your first-year savings so you see the real break-even point.
What's the difference between fixed, variable, and indexed rate plans?
Fixed-rate plans lock your cents-per-kWh for the whole contract term (usually 6, 12, 24, or 36 months). Variable-rate plans change every month with the wholesale market, you're exposed to summer price spikes. Indexed plans tie your rate to a published commodity index, similar to variable. For most households fixed is safer. Voltcheckr filters out variable and gimmicky plans by default but you can toggle them on.
What are bill credits and why are they gimmicks?
Some plans offer a large bill credit (e.g. $100 off) when your usage hits an exact threshold, usually 1,000 or 2,000 kWh in a month. If you fall just short of the threshold, you miss the credit entirely and the effective rate becomes much higher. Voltcheckr flags bill-credit plans as potentially gimmicky and excludes them from the default ranking unless you explicitly opt in.
What's the cheapest Texas electricity plan right now?
There's no single 'cheapest plan', it depends on your monthly kWh usage. A plan that's cheapest for a 500 kWh household is often expensive for a 2,000 kWh household because of bill credits, base fees, and tiered rates. Voltcheckr calculates the real monthly cost of every plan at YOUR actual usage and ranks them accordingly. Upload your bill or enter your ZIP to see the current winner.
How much do people actually save?
It depends on the gap between your current rate and the cheapest available plan. A household paying 14¢/kWh that switches to a 10¢ plan at 1,200 kWh/month saves about $48/month. We rank every plan in your area against your actual usage so you see your exact number, not an average. If you're on a month-to-month auto-rollover or a plan past its contract term, the gap is usually largest.
Can I switch in the middle of my contract?
Yes, but you may owe an early termination fee. In the last 14 days of your contract you can switch penalty-free, Texas law requires this. Voltcheckr lets you enter your contract end date and will alert you when you're in the ETF-free window so you can switch with zero penalty.
Where do Voltcheckr's rates come from?
Voltcheckr pulls live rates directly from Texas electricity suppliers in real time, then applies real-usage math to show you which plan is actually cheapest for your household. Because the rates are fetched fresh on every search, you're always comparing today's real prices, not a stale list.
Is my bill data safe?
Yes. Your bill is used only to prepare your quote and is held securely by Voltcheckr. We never sell or share your data with third parties. You can request deletion at any time by emailing privacy@voltcheckr.com. See our Privacy Policy for the full breakdown.
What if I don't have a bill to upload?
No problem. Click 'Setting up new service?' on the homepage and enter your ZIP + home size (square feet). We estimate your monthly kWh and show you the cheapest plans available at your new address. Useful for move-ins and renters starting fresh.
Does Voltcheckr cost anything?
No. Voltcheckr is 100% free. No account, no credit card, no paywall. Your electricity rate is identical whether you sign up through Voltcheckr or directly on the provider's site. Plans are ranked purely on your actual cost, nothing else affects the order. See our Disclosure page for full transparency on how we stay free.
Does Voltcheckr work in Spanish?
Not yet. Voltcheckr currently operates in English only. We're building a fully Spanish experience — including Spanish-language customer support and disclosures — and will turn it on once that's complete. In the meantime, our support team at support@voltcheckr.com is glad to help.