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Commercial Electricity in Texas: How Business Rates and Load Profiles Work

May 1, 2026Get Electricity StaffElectricity Guide

Commercial Electricity in Texas: How Business Rates and Load Profiles Work

Deregulated commercial electricity in Texas is highly competitive, allowing the state’s businesses to enjoy average energy rates that are roughly 35% lower than the national average.

However, many business owners are shocked to discover that their final bills are 15% to 25% higher than the headline per-kWh rate they locked in.

The discrepancy is not due to billing errors. It is because commercial electricity rates are calculated using a completely different structure than residential rates. While residential shopping is mostly centered on energy consumption, commercial bills are heavily driven by demand charges and load profiles.

In this guide, we will break down the four key components of a Texas business electric bill, explain how demand charges are calculated, and show you how to leverage your load profile to secure the lowest rates with GetElectricity.

The Four Components of a Commercial Electricity Bill

When a retail electric provider (REP) quotes you a headline commercial rate—such as "7.2¢ per kWh"—they are usually quoting the energy charge only. Your actual monthly invoice will contain four distinct sections:

  1. Energy Charge (kWh): The raw cost of the electricity your business consumed over the billing cycle, measured in kilowatt-hours.
  2. Demand Charge (kW): The fee charged for the maximum capacity of electricity your facility required at any single moment. This is measured in kilowatts (kW) based on your highest 15-minute interval of usage.
  3. TDU Delivery Charges: Regulated fees charged by your local utility (e.g., Oncor, CenterPoint) to deliver electricity over the grid, maintain poles, and read meters.
  4. Ancillary Services: Fees collected by the grid operator (ERCOT) to maintain grid reliability, frequency control, and reserve power.

For many medium and large commercial operations, demand charges and TDU delivery fees represent 30% to 70% of the total monthly statement.

Understanding Demand Charges (Peak kW vs. Total kWh)

To understand demand charges, imagine two different businesses that both consume exactly 30,000 kWh of electricity in a month:

  • Business A (Office Space): Operates 24/7 with a flat, consistent draw. They use efficient lighting, small server racks, and keep temperatures stable. Their peak electricity draw at any single moment is 50 kW.
  • Business B (Manufacturing Facility): Operates only 8 hours a day, but when they start up their heavy machinery at 8:00 AM, the massive machinery draws a huge amount of power. Their peak electricity draw at startup is 200 kW.

Even though both businesses consumed the exact same total amount of energy (30,000 kWh), Business B will pay a significantly higher electric bill.

The TDU must build and maintain transformer capacity, wire gauges, and substation equipment to support Business B’s worst-case peak of 200 kW. Therefore, Business B is charged a peak demand penalty. If the demand charge is $10 per kW, Business B pays $2,000 in demand charges, while Business A pays only $500.

Visualizing the Difference: Flat Draw vs. Peak Spikes

Here is a side-by-side visualization of the daily load profiles of Business A (Office) and Business B (Factory) over a typical 24-hour day:

How to Manage and Reduce Your Peak Demand

Because demand charges are based on your highest 15-minute peak, they are highly controllable through operational adjustments:

  • Stagger Stated Workloads: Stagger heavy machinery startup times by 15 to 30 minutes to flatten your peak draw.
  • Pre-Cooling Systems: Cool your building down early in the morning and raise the thermostat slightly during peak grid demand windows (typically 3:00 PM to 6:00 PM).
  • Peak Shaving: For large operations, on-site battery storage systems can discharge during peak demand windows to absorb load spikes, preventing them from hitting the TDU meter.

Commercial Rate Classes in Texas

Businesses are placed in different rate classes based on their peak demand rating:

  • Small Commercial (Under 10 kW or 25 kW peak): Billed similarly to residential customers. Demand charges are minimal or nonexistent, and energy charges dominate.
  • Medium Commercial (25 kW to 200 kW peak): Significant demand charges. These businesses benefit from fixed-rate contracts and load-shifting strategies.
  • Large Commercial / Industrial (200 kW to 5 MW+): Heavily driven by load profiles. They require custom-engineered bids from REPs and participate in demand response programs.

Let GetElectricity Handle Your Business Power Sourcing

Because commercial pricing is highly customized, you cannot simply look up commercial plans on a public list page like you do for residential rates. Providers require your historical 12-to-24-month load profile (interval data) to build custom pricing models.

GetElectricity simplifies commercial energy procurement:

  • Interval Data Capture: We securely pull your business's historical 15-minute interval data to map your exact load profile.
  • Sealed Bid Sourcing: We package your load profile and submit it to a select network of competing commercial energy providers, who submit bids for your business.
  • Transparent Audits: We break down all incoming quotes into energy, demand, and TDU components, so you can compare proposals on a true all-in cost basis.

Take control of your business's energy expenses. Get a custom commercial rate audit from GetElectricity today.