Fixed Rate vs. Variable Rate: Which Is Right for You?

In most markets, variable rate risk is moderate. In Texas, it's significant.

The ERCOT grid operates independently from the rest of the U.S. power grid. During periods of extreme demand — a brutal August, an unexpected winter storm — wholesale electricity prices in Texas can spike to levels that are genuinely shocking on a retail bill.

Most Texas homeowners don't need to be reminded of February 2021. Customers on variable rate plans during that week faced electricity bills of thousands of dollars for a single month. Customers on fixed rate plans paid their normal rate.

That's an extreme example. But summer price spikes are a routine part of the Texas energy market every year — not an anomaly. Variable rate customers absorb those spikes directly.

Variable rate plans aren't always the wrong choice. Here's the honest case for them:

Short-term flexibility. If you're in a rental situation, moving soon, or between contracts, a variable rate plan with no early termination fee gives you the ability to switch or cancel without penalty.

Potential savings in favorable markets. When wholesale prices are low — typically in mild weather months — variable rates can undercut fixed rates. Some customers do save money on variable plans in the short term.

No early termination fee. Most variable rate plans don't lock you in. If rates spike, you can switch — though finding and executing a new contract during a price event takes time you may not have.

The problem is that the upside of a variable rate plan is modest and the downside is potentially severe. That asymmetry is worth understanding before you sign.

For most Texas homeowners and businesses, a fixed rate plan is the right default. Here's why:

Predictability. You know what you're paying. You can budget around it. There are no surprises in August.

Protection from market events. Texas summers are not getting milder. The risk of price spikes on the ERCOT grid is structural, not random. A fixed rate removes that exposure entirely for the length of your contract.

Competitive pricing when timed right. Fixed rate plans locked in during low-market periods can deliver excellent rates for 12–24 months. Timing matters — which is exactly where a broker adds value.

Peace of mind. This is real and underrated. Not watching your electricity rate with every weather forecast is worth something.

Here's a simple framework:

Choose fixed rate if:

• You're planning to stay in your home or location through the contract term
• You want predictable monthly bills
• You're heading into summer or any high-demand period
• You had a bad experience with a variable rate bill
  

Consider variable rate if:

• You're in a short-term living situation with no long-term commitment
• You're between fixed contracts and need a temporary bridge plan
• You're comfortable monitoring market conditions and acting quickly if rates move

One important note: a variable rate plan should almost never be your default long-term energy strategy in Texas. Many customers end up on variable rates simply because their fixed contract expired and they didn't act. That's the most common and most avoidable way to overpay.

If you choose a fixed rate plan, you'll also need to decide on contract length — typically 6, 12, 18, or 24 months. A few considerations:

Shorter contracts give you more flexibility to re-shop when the market shifts. They're better when rates are currently high and you expect them to drop.

Longer contracts lock in favorable rates for longer. They're better when rates are currently low and you want to protect against future increases.

Reading market conditions to make that call is exactly what Mike does when he builds a rate proposal. He's not just finding the lowest rate today — he's looking at where the market is and recommending a contract structure that makes sense for the next 12 to 24 months.

Beyond fixed and variable, some REPs offer indexed plans (tied to a specific market index) or wholesale pass-through plans (you pay the actual wholesale spot price). These exist and some sophisticated energy buyers use them deliberately.

For the vast majority of homeowners and small businesses, these plans introduce more complexity and risk than they're worth. They're worth knowing exist — and worth avoiding unless you have a specific reason and understand exactly what you're agreeing to.

Fixed rate plans offer stability and protection. Variable rate plans offer flexibility with meaningful downside risk. For most Texas households and businesses, the math — and the peace of mind — favors fixed.

The more important question isn't just which type, but whether the specific rate you're being offered is competitive for your usage profile and the current market. That's a harder question to answer on your own.