12 vs 24 Month Texas Electricity Contracts: Which Saves More?

If you are shopping for a Texas electricity plan—or comparing fixed offers in another choice state—the first number you see is usually cents per kilowatt-hour. The second is contract length: twelve months versus twenty-four. It is tempting to treat the longer contract as the "safer money saver." In practice, neither term automatically saves more. What matters is the all-in price at your actual usage, the fees buried in the Electricity Facts Label (EFL), and whether market prices move up or down after you sign.

This guide walks through how fixed-term plans work in Texas, when each length tends to fit, and how to compare offers without betting wrong on the market.

The Short Answer: Neither Term Wins by Default

A twelve-month and a twenty-four-month plan are both fixed-rate products for the energy portion of your bill: your ¢/kWh for generation/supply stays the same for the contract term, with defined exceptions. The Public Utility Commission of Texas (PUCT) shopping site explains that on a fixed-rate plan your price per kWh will not change during the contract period except for changes in transmission and distribution (TDU) fees, ERCOT or Texas Regional Entity administrative fees, or fees from federal, state, or local laws beyond your retail electric provider's (REP's) control—and that if market prices fall, you may have to wait until the contract ends to get a lower price (¹).

So the real question is not "12 or 24?" but:

1. Which offer has the lower total annual cost at my kWh? (rate × usage + recurring fees + minimum-usage penalties)
2. How likely am I to want to move or switch before the term ends? (early termination fees apply on many contracts of three months or longer (¹))
3. Will I re-shop before auto-renewal? (expired contracts often roll to a month-to-month variable product that is typically much pricier (¹))

Sometimes a 24-month plan posts a lower ¢/kWh than the 12-month plan from the same REP. That is a rate discount for commitment, not a law of physics. Other times the 12-month is cheaper because the supplier is pricing in near-term market risk differently. You only know by running the numbers on the EFL at your usage band—usually normalized to 500, 1,000, and 2,000 kWh per month on Texas labels (²).

How Texas Electric Choice Works (and Where Else This Applies)

Most of Texas is in the competitive retail electric market: you choose a REP and plan; your local utility (TDU) still delivers power and bills pass-through TDU charges. Power to Choose is the PUCT's official comparison site where certified REPs post plans (¹).

If you are not in Texas, the same term-length logic applies wherever you can choose a competitive supplier. The U.S. Department of Energy notes that depending on your state and utility, you may have alternative choices for rates and providers, and that bills may separate supply from delivery (³). In fully regulated states you typically cannot pick a 12- or 24-month competitive supply contract, though your utility may still offer time-of-use or budget billing programs.

For context on why timing matters: wholesale power prices in ERCOT (the grid operator for most of Texas) have swung sharply during extreme weather and tight supply. EIA reported that during a July 2022 heat wave, record demand and weak wind output pushed more gas-fired generation online, and wholesale prices at the ERCOT North hub averaged $182 per megawatt-hour that month (⁴). Retail fixed rates insulate you from that kind of daily wholesale spike—but only until your contract ends or unless pass-through clauses apply (more below).

Texas's average retail price was 9.79¢/kWh in 2024 in EIA's state profile (⁵). That statewide average blends many plan types; your offer can be above or below depending on term, fees, and usage.

What You're Actually Buying: Fixed Rate, Term Length, and the EFL

Fixed rate vs variable month-to-month

• Fixed-rate plan: price per kWh locked for the contract term (with the pass-through exceptions noted above). Helps budgeting; you can miss out if the market drops (¹).
• Variable / month-to-month: price can change monthly; no long cancellation fee on typical variable products, but price risk is higher (¹).

Power to Choose's shopping guide notes you can filter for fixed-rate plans with terms longer than one month—useful when you want a multi-season lock during periods of high wholesale prices, such as summer or winter peaks (⁶).

What 12 vs 24 months changes

The PUCT requires an Electricity Facts Label for every plan with contract terms, pricing, fees, and renewable percentage so customers can compare offers (⁷).

Questions to ask before you pick a term

Power to Choose recommends comparing plans using the total ¢/kWh at 1,000 kWh average monthly usage (excluding taxes and one-time fees), and asking whether the rate includes TDU charges, whether the plan is fixed or variable, contract length, deposit, early-termination penalty, and what happens at expiration (²).

When a 24-Month Contract Tends to Make Sense

A twenty-four-month fixed plan is worth a hard look when:

You want the longest predictable household budget line. Two years of stable energy price (again, with TDU/regulatory pass-throughs) can matter if you are on a tight budget or fixed income.

The 24-month EFL beats the 12-month EFL at your usage tier—even after fees. Multiply the all-in ¢/kWh by annual kWh and add monthly customer charges. A 0.3¢/kWh difference sounds small; on 12,000 kWh/year it is $36 before fees. On 18,000 kWh it is $54.

You believe wholesale/retail offers will stay elevated. After volatile ERCOT summers and gas-driven wholesale spikes, some households prefer not to re-shop into a potentially higher market every year (⁴).

You are unlikely to move or switch providers for two years. Breaking a contract early can trigger a fee on plans with terms of three months or more (¹).

You will calendar a renewal 30–60 days before month 24. Texas REPs must send written expiration notice for contracts with three or more months left; if you do nothing, you may land on a month-to-month default (⁸).

When a 12-Month Contract Tends to Make Sense

A twelve-month contract often wins on flexibility and total cost when:

The 12-month offer is already the lowest all-in price. Do not pay a premium for 24 months unless the math proves it.

You want a regular "market check" without staying on month-to-month. You re-shop annually at a known date instead of riding variable rates.

You might move, renovate, add solar, or buy an EV within two years. Early termination fees make long contracts expensive if life changes.

You are disciplined about shopping but not about multi-year planning. A 12-month term forces an annual review—which is useful in a market where fixed plans can expire into high default rates (¹).

You think retail rates could fall. Fixed plans protect you on the way up; they block you on the way down until term end (¹). A shorter lock lets you capture lower offers sooner if the market softens.

Hidden Costs, Pass-Throughs, and Why "Fixed" Is Not Absolute

Compare more than the headline rate

Your bill has two conceptual parts: energy use (kWh) and mandatory charges. Consumer Reports explains that bills include usage-based charges and fixed customer charges that every account pays before the meter spins—historically often in the $5–$10/month range, though some utilities have pushed higher fixed charges (⁹). On competitive plans, watch for:

• Monthly customer or base charge (flat fee regardless of kWh) (⁷)
• Minimum usage fee if you use less than a threshold (common cutoffs: 500 or 1,000 kWh in a billing period) (⁸)
• TDU delivery charges passed through on all plans

Low users: a cheap ¢/kWh with a high base charge can lose to a slightly higher rate with no base fee. High users: minimum-usage fees rarely bite, but base charges matter less per kWh.

When "fixed rate" still moved on someone's bill

Fixed does not mean "your total bill never changes." TDU rate cases, regulatory fees, and usage still move the bottom line. In extreme cases, market turmoil has led REPs to add surcharges. Utility Dive reported that Ambit Energy customers on a two-year fixed rate of 9.7¢/kWh saw an added "Power Cost Recovery Factor" that raised the effective average to about 11.6¢/kWh on a sample bill—a reminder to read the Terms of Service and watch notices (¹⁰). That episode was contested and unusual, but it illustrates why you should not treat any contract as set-and-forget.

Usage baseline for back-of-envelope math

Energy.gov notes national average consumption around 1,000 kWh/month as a rough benchmark when thinking about savings (¹¹). Pull your last twelve months of kWh from bills or Smart Meter Texas before you trust a 1,000-kWh EFL row.

Renewal Traps, Early Exit, and Switching Rules

Do not let a fixed contract expire without a plan. Many contracts default to month-to-month service at a much higher price (¹). For contracts with three or more months remaining, REPs must send a written expiration notice between 30 and 60 days before the end (⁸).

Switching is usually free of a utility switching fee, but breaking an existing REP contract early may carry a penalty—check your Terms of Service (⁸). After you enroll, ERCOT sends a confirmation mailer; you have three business days to cancel the switch (⁸).

There is no statewide switching fee for a standard meter read, though special read requests may cost extra (⁸).

Practical calendar: set two reminders—one 60 days before contract end to compare plans, one 14 days before to confirm enrollment so you are not stuck on default pricing.

Small-business and landlord notes

Commercial accounts in Texas also shop on competitive markets, but load profiles and demand charges differ from homes. The Department of Energy emphasizes that utility bills can include multiple components—energy (kWh), demand (kW peaks), and fixed charges—and that rate options may hinge on voltage level and monthly peak usage (³). If you are comparing 12- vs 24-month residential offers for a rental property, confirm the EFL usage band matches typical tenant occupancy; a minimum-usage fee can punish low-vacancy months (⁸).

Plans that are not plain fixed kWh

Power to Choose also lists indexed and variable products, plus prepaid pay-as-you-go plans that may not have a long contract but can carry higher effective rates (¹). This article focuses on traditional 12- and 24-month fixed offers because that is what most homeowners mean when they ask which term saves more—but if a variable rate is far below fixed offers, ask whether you can tolerate monthly price swings and active monitoring.

A Simple Comparison Method and Decision Checklist

Step 1: Annualize each EFL at your kWh

For each candidate plan (12-month vs 24-month from the same or different REPs):

1. Use the EFL row closest to your average monthly kWh (e.g., 1,000 kWh).
2. Compute: (¢/kWh ÷ 100) × (monthly kWh × 12).
3. Add: (monthly base fee × 12) plus any expected minimum-usage fees.
4. Compare total estimated annual cost, not just ¢/kWh.

Step 2: Price the option value of flexibility

If the 24-month plan saves $80/year but your early-termination fee is $150, a move within two years can erase the savings. Assign a personal value to flexibility if your housing situation is uncertain.

Step 3: Match term to risk

Worked example (illustrative only)

Assume 1,000 kWh/month (12,000 kWh/year) and two fictional offers:

• Plan A — 12 months: 11.0¢/kWh all-in at 1,000 kWh, $9.95/month customer charge

• Plan B — 24 months: 10.4¢/kWh all-in at 1,000 kWh, $9.95/month customer charge

Plan B saves about $72 per year if you complete the full 24 months and nothing changes on pass-throughs. If you leave Plan B after 14 months and pay a $150 early-termination fee, the savings evaporate.

Replace these numbers with your live EFL quotes—markets change daily.

Bottom line

Twelve months does not always save more. Twenty-four months does not always save more. The cheaper term is whichever offer delivers the lower total cost at your usage, minus the risk you place on early exit, renewal discipline, and pass-through surprises. Shop both terms side by side on the EFL, model annual cost, pick the length that fits your housing horizon, and put renewal on your calendar before the default month-to-month rate does the choosing for you.