Best Electricity Plan for High and Low Usage Texas Homes

A 900-square-foot apartment and a 3,500-square-foot house should not be on the same electricity plan. Yet most Texans pick a plan based on a single advertised rate without considering how plan economics shift at different usage levels. Here is what changes and why it matters.

How Plan Pricing Actually Works at Different Usage Levels

Texas electricity plans are not simple per-kWh rates. Most plans have a structure that includes:

• Base charges: A flat monthly fee ($5–$15) regardless of usage. This hits low-usage homes harder as a percentage of the total bill.
• Tiered energy rates: The per-kWh rate often changes at usage thresholds. Some plans get cheaper above 1,000 kWh; others get more expensive.
• TDU delivery charges: Your local utility (Oncor, CenterPoint, etc.) charges a combination of flat fees and per-kWh delivery rates. These are the same regardless of your electricity provider.
• Bill credits: Some plans give you a credit (typically $25–$100) when you hit a usage threshold like 1,000 or 2,000 kWh. Miss the threshold by 1 kWh and you lose the credit entirely.

Low-Usage Homes (Under 800 kWh/month)

If you consistently use less than 800 kWh per month (small apartments, efficient homes, or households where nobody is home during the day), here is what to watch for:

What Works

• Plans with low or zero base charges. A $10/month base charge on a 500 kWh bill adds 2¢/kWh to your effective rate. On a 2,000 kWh bill, it adds only 0.5¢/kWh.
• Simple fixed-rate plans without usage credits. Credits designed for 1,000+ kWh usage will never benefit you.
• Short-term contracts (6–12 months). Lower usage means lower switching costs if rates improve.

Dense, apartment-heavy ZIPs are where this profile clusters. If you are in one, the plan list you are actually choosing from is on your area page: downtown Dallas (75201), downtown Houston (77002), west Houston (77063), or Addison (75001). Note that 75201 and 75001 are on Oncor while 77002 and 77063 are on CenterPoint — that is a real difference in both the plans offered to you and the delivery charges attached to them.

What to Avoid

• Plans with minimum usage requirements. Some plans charge a minimum bill amount (e.g., $50/month) even if your usage is low.
• Plans that price attractively at 1,000 kWh. These often have higher base rates and use the 1,000 kWh tier as a marketing tool with bill credits you will never trigger.

A low-usage home in the DFW area (Oncor territory) might pay $60–$90/month. The difference between the best and worst plan at this usage level can be $15–$25/month, a 20–30% swing. The full spread of what is currently offered on Oncor is on any of the DFW area pages — Arlington (76010) and Mesquite (75150) both show it.

Average-Usage Homes (800–1,500 kWh/month)

This is where most Texas families land. You have the most options, but also the most noise to sort through.

If You Have No Usage History Yet

New construction is its own case, and a lot of Texas households are in it — fast-growing suburbs like Anna (75409), Richmond (77407), and Harker Heights (76548) are full of homes with no 12-month bill history to compare against. Without that history you cannot know which bracket you land in, so the safe move is the opposite of chasing a tier: pick a plan that prices sanely across the whole 800–2,000 kWh range rather than one that wins only at 1,000 kWh, and re-shop once you have a summer on record.

What Works

• Competitive fixed-rate plans. At this usage level, a 1¢/kWh rate difference translates to $10–$15/month or $120–$180/year.
• 12–24 month terms to lock in rates, especially if current rates are favorable.
• Plans that price well across the 800–1,500 kWh range, not just at a single tier.

The Bill Credit Trap

Average-usage homes are the primary target for bill-credit plans. A plan might offer a $75 credit at 1,000 kWh, making the advertised 1,000 kWh rate look incredible. But in summer when you use 2,000 kWh, that credit is diluted, and in winter at 700 kWh, you do not even qualify. Run the math across all 12 months.

High-Usage Homes (Over 1,500 kWh/month)

Large homes, pool owners, EV chargers, home offices with heavy computing, or households that keep the thermostat at 72°F all summer. High usage changes the economics significantly.

The large-lot suburbs are where this bracket lives: Flower Mound (75028) and McKinney (75070) on Oncor, Sugar Land (77479) and The Woodlands (77381) on CenterPoint. Each of those pages lists the plans currently available on that utility, which is the set you are choosing the 2,000 kWh winner from.

Climate matters here too, and it is the one thing that genuinely varies ZIP by ZIP. A home in Corpus Christi (78401) or McAllen (78501) runs its air conditioner over a materially longer cooling season than the same home in North Texas, so it spends more months of the year in the high-usage bracket — and the plan that wins across a year of those months is not necessarily the one that wins on a 1,000 kWh spring bill.

What Works

• Plans with the lowest per-kWh rate above 2,000 kWh. At 2,500 kWh/month, even a 0.5¢/kWh difference is $12.50/month or $150/year.
• Fixed-rate plans with no usage penalties. Some plans increase rates above certain thresholds, which punishes high users.
• Longer contract terms (18–24 months) to lock in favorable rates. High usage means high dollar exposure to rate changes.

What to Avoid

• Variable-rate plans. When you use 2,500 kWh in August and the variable rate spikes to 18¢/kWh, your bill jumps to $450+ before TDU charges.
• Plans with escalating tiers. If the rate goes from 10¢ to 14¢ above 2,000 kWh, your summer bills will be painful.
• Free nights plans (usually). High-usage homes often run AC heavily during daytime. The higher daytime rate on free nights plans cancels out the nighttime savings. See our free nights analysis for the math.

The Break-Even Math

Here is a simplified example showing how two plans compare across usage levels:

In this simplified example, Plan B looks better everywhere. But real-world plans are more complex: the $50 credit typically applies to a usage range (e.g., 1,000–2,000 kWh), rates have different tiers at different levels, TDU passthrough variations apply, and seasonal rate adjustments change the picture. The only reliable way to compare is to use your 12-month usage history.

Your Utility, Not Your ZIP, Decides Which Plans You Can Buy

One thing worth being precise about, because a lot of comparison sites are vague on it: in Texas, plan availability and pricing are set by your utility (the TDU that owns the wires), not by your ZIP code. Every ZIP served by Oncor sees the same plans at the same rates. So Flower Mound and Tyler shop from an identical list, while Katy (CenterPoint), Brownsville (AEP Texas), and Lubbock (TNMP) each shop from a different one.

What your ZIP does decide is which of those four lists is yours — and, through climate, what your usage curve looks like against it. Those two things together are the whole answer. Nobody in your ZIP gets a secret cheaper rate than your neighbor two utilities over; they get a different menu and a different summer.

When Fixed Rate Beats Variable (and Vice Versa)

For most Texas homes, a fixed-rate plan provides predictability and protection against summer rate spikes. Variable plans can save money if:

• You are willing to actively monitor wholesale rates
• You can shift heavy usage to off-peak hours
• You are comfortable with summer bills that could be 2–3x your winter bills

For high-usage homes, the risk of variable pricing is amplified. A 5¢/kWh wholesale spike that adds $25 to a low-usage bill adds $100+ to a high-usage bill. Unless you are actively managing your energy consumption, fixed rate is the safer choice. If you already know your usage level, run your own numbers against the current plan list rather than trusting the advertised tier.