Texas Warehouse Power Plans: How to Compare Commercial Electricity Rates
Warehouses look simple from the street—big box, dock doors, forklifts—but the electric bill is rarely simple. Lights, HVAC (or the lack of it), conveyors, battery chargers, and cold storage can each pull power in different patterns. In much of Texas, you also choose a retail electric provider while a separate wires company delivers the power. That split is useful once you understand it, and confusing if you shop the way you would for a house. This guide walks through how commercial rates work for warehouse and storage facilities, what to compare on offers, and how to avoid mistaking a low energy price for a low total bill.
Why warehouse electricity shopping is different from residential
Residential shopping tools train people to hunt for the lowest cents-per-kilowatt-hour number on a comparison site. Warehouses break that habit for three reasons.
First, warehouses are a major slice of U.S. commercial real estate. The U.S. Energy Information Administration’s Commercial Buildings Energy Consumption Survey found that warehouse and storage buildings were the most numerous commercial building type as of 2018 and held the most floorspace, yet they ranked among the least energy-intensive building types on a per-square-foot basis (¹). Low intensity does not mean a small bill. A large footprint with modest intensity still burns a lot of kilowatt-hours, and the shape of that usage—sharp peaks when docks and conveyors kick on—matters as much as the total.
Second, commercial accounts often face demand-based delivery charges, not only energy charges. Your wires company measures how hard you pull power at peak moments, not just how much energy you consume over the month. A short spike can raise demand charges for months if your tariff includes a demand ratchet.
Third, in competitive Texas areas, business shopping is frequently a negotiated purchase rather than a click-to-enroll plan. The Public Utility Commission of Texas’ Power to Choose site states plainly that shopping for electric service for a business is different from residential shopping and, for many businesses, resembles buying wholesale materials or a large equipment order (²).
If you operate a small flex space with light office load, some residential-style comparison habits still help. If you run a distribution center with material-handling equipment, treat power procurement like a recurring commodity contract: gather interval data, define risk, solicit multiple quotes, and model total cost—not just the energy rate.
How Texas commercial power is structured: REPs, wires companies, and ERCOT
In 1999, Texas passed Senate Bill 7 to open retail competition for most customers of investor-owned utilities. Generation, delivery, and retail sales were separated so customers could choose a Retail Electric Provider (REP) while regulated Transmission and Distribution Service Providers (TDSPs) kept the poles, wires, and meters (³).
ERCOT operates an energy-only wholesale market covering about 90 percent of Texas load and facilitates competitive retail switching in choice areas (⁴). Roughly 85 percent of Texas electricity consumers can choose a retail provider; municipally owned utilities and cooperatives generally did not opt into competition, so places such as Austin and San Antonio remain outside retail choice for most customers (³). Power to Choose’s FAQ makes the same point: choice depends on where you are, and some communities served by municipalities or cooperatives do not have electric choice (⁵).
Oncor, one of the large TDSPs, explains the split clearly: REPs market electricity and bill customers; TDSPs deliver and meter electricity, fix outages, and maintain lines. Four TDSPs operate in deregulated zones of Texas: Oncor, CenterPoint Energy Houston Electric, Texas-New Mexico Power, and AEP Texas. The TDSP bills the REP for delivery; the REP bundles those costs into your customer bill (⁶).
That matters for warehouse owners because switching REPs does not change who restores your power after a storm. Outage response stays with the local wires company, which remains regulated for reliability (⁵). You shop the energy commodity and contract terms; you live with the delivery tariff for your address.
The Public Utility Commission of Texas oversees REPs, enforces disclosures, runs the official comparison site at powertochoose.org, and handles complaints (³). For residential-style plans, REPs must provide an Electricity Facts Label (EFL)—a standardized “nutrition label” for price and contract terms (⁷). Larger commercial deals often use custom contracts and pricing exhibits instead of a posted EFL, but the same discipline applies: get every fee, term, and pass-through in writing before you sign.
What you are really comparing: energy, demand, and delivery
A warehouse bill is usually three conversations taped together.
Energy (kWh). This is the commodity your REP sells—the electricity consumed over time. Fixed-price contracts lock a rate for a term; variable or indexed products move with market conditions. Power to Choose notes that fixed rates are for terms longer than one month, while variable rates can change month to month, and fixed products can help during high wholesale-price seasons (⁸).
Demand (kW). Oncor defines kilowatts as the instantaneous rate of consumption and records the highest demand over a 15-minute period in the billing month for many non-residential schedules (⁶). Warehouses that start many motors at once—or charge fleets of forklift batteries on the same schedule—create demand peaks even when monthly kWh looks moderate.
Delivery / TDSP charges. These recover the cost of the wires system. They are Commission-authorized tariff charges that REPs pass through according to your rate schedule (⁶; ⁹). For secondary service above 10 kW, Oncor notes that billing often uses demand determinants, and “Billing kW” may be the higher of current non-coincident peak demand or 80 percent of the highest monthly NCP demand in the prior 11 months—the demand ratchet (⁶). CenterPoint’s tariff likewise defines demand, billing demand, and demand ratchet concepts for delivery service (⁹).
Practical translation: two REPs can quote the same energy price and produce different total bills if one product embeds delivery differently, applies a different bandwidth or swing allowance, or fails to account for your demand profile. Always ask for an all-in estimate using your recent interval data, not a generic “commercial rate.”
Statewide averages help set expectations but are not a quote. EIA’s Electric Sales, Revenue, and Average Price tables for 2024 report Texas commercial average retail price at 8.55 cents per kilowatt-hour, with an average commercial monthly bill around $752 on about 8,790 kWh (¹⁰; ¹¹; index overview at ¹²). Your warehouse may sit well above or below those averages depending on size, hours, refrigeration, and demand.
How commercial rate products differ—and how to compare them
Commercial offers cluster into a few product families. The labels vary by supplier; the economics do not.
Fixed energy price. You pay a set cents-per-kWh (or sometimes a block of energy at a fixed price) for a defined term. Predictability is the selling point. The trade-off is paying a risk premium so the REP can hedge wholesale exposure. ERCOT notes that locking rates for months or years helps customers avoid spikes, while prices across contracts can still differ a lot in competitive markets (³).
Indexed / market-based. Your price floats with a published wholesale index plus a retailer adder. This can be cheaper in quiet markets and painful in stress events. Warehouses with flexible operations sometimes combine index exposure with hedges; sites that cannot curtail during heat waves usually prefer more fixed coverage.
Block-and-index or shaped products. You fix a portion of expected load and leave the rest floating. This is common when interval data shows a stable base load (lighting, HVAC baseline) plus a variable peak (seasonal cooling, overtime shifts).
Time-of-use or demand-response-aware products. Pricing or incentives encourage shifting load. Worth studying if you can move battery charging, pre-cool, or sequence conveyors.
When you compare offers, build a scorecard with at least these columns:
- Energy rate and formula — fixed, indexed, or hybrid; what index; what adder.
- Contract term and end date — alignment with lease renewals matters.
- Volume flexibility — bandwidth percentages, swing, or take-or-pay language.
- Pass-throughs — TDSP charges, ERCOT fees, taxes, and any ancillary riders.
- Early termination — Power to Choose notes there is no switching fee for a normal switch, but contract exit penalties may apply if you break an existing agreement (⁵).
- Credit and collateral — deposits or parental guarantees for new businesses.
- Renewable attributes — if you need green claims, specify percentage and certification method; Power to Choose’s residential tool even filters by renewable share (⁸).
For smaller sites that still use posted plans, read the Electricity Facts Label and Terms of Service the way Power to Choose recommends: do not stop at the headline price (⁸; ⁷). Watch for minimum-usage fees and tiered rates—structures that are more common in residential products but still appear in small-commercial offers (⁵).
EIA research on customer choice programs nationally finds that commercial and industrial customers have generally paid less per kilowatt-hour through competitive suppliers than through noncompetitive suppliers, while residential customers have often paid more—suppliers compete hardest for larger loads (¹³). Warehouse loads that look “large” to a residential marketer may still be mid-market to a commercial desk; you still benefit from shopping, but you should expect negotiation, not a catalog price alone.
Warehouse load profiles: what drives cost inside the building
Before you solicit quotes, understand what creates your kWh and kW.
Even though warehouses tend to use less energy per square foot than offices, hospitals, or food-service buildings, absolute consumption scales with floor area, operating hours, and equipment density (¹). Lighting, space conditioning, material handling, and—where present—refrigeration dominate different facilities in different ways. In unconditioned or lightly conditioned warehouses, lighting and plug/process loads often drive the electric meter more than HVAC. In refrigerated distribution, compressors rewrite the load shape entirely.
ENERGY STAR’s warehouse best-practices checklist prioritizes lighting schedules, occupancy sensors, LED upgrades for docks and parking, HVAC maintenance, dock seals, and separating office conditioning from warehouse space (¹⁴). Those measures cut kilowatt-hours. Equally important for Texas delivery tariffs, they can shave demand if you stop illuminating empty aisles or staggering equipment starts.
Ask your operations team for a one-page load story:
- Operating hours and shift patterns
- Whether the building is conditioned, heated only, or largely ambient
- Refrigerated square footage, if any
- Conveyor and automation density
- Forklift battery charging schedule
- Electric vehicle or yard-truck charging plans
- Seasonal peaks (holiday fulfillment, summer AC)
Then pull 12 months of interval data from your TDSP portal or Smart Meter Texas where available. Oncor notes that larger accounts may have meter multipliers due to current transformers—another reason to trust validated interval exports over a napkin estimate (⁶).
With that file, a good broker or REP can price the same load under fixed and indexed structures and show the all-in outcome. Without it, you are comparing marketing, not power plans.
How to shop in Texas: posted plans, negotiations, and aggregators
Confirm you have choice. Enter the site ZIP on Power to Choose or ask the TDSP. If you are in a municipal or cooperative territory that did not opt in, you will take the utility’s commercial tariff rather than shop REPs (⁵; ³).
For small commercial / light warehouse use. Power to Choose remains the official, unbiased starting point for competitive offers (¹⁵; ³). Use past bills to estimate average monthly usage, filter fixed versus variable products, and open every fact sheet (⁸).
For mid-size and large warehouses. Follow the Power to Choose business page: treat procurement as a negotiated purchase. Collect proposals from multiple REPs, use an aggregator if you want bulk buying power, and compare Terms of Service side by side (²). Aggregators can represent employer groups or associations; businesses can also register as aggregators for members (²).
Timing. Wholesale conditions and seasonal load shape both matter. Power to Choose’s residential guide flags high wholesale-price periods around peak summer and winter as a reason some shoppers prefer fixed products (⁸). Commercial buyers often start RFPs 60–120 days before contract expiration so they are not forced into a short-term default product.
Switching mechanics. After you enroll, ERCOT confirms the switch; customers typically have a short cancellation window, and the switch completes without a service lapse when processes work as designed (⁵; ³). You do not need to call the old REP to leave, but you remain responsible for exit fees if you break a term contract (⁵).
If your REP exits the market. You will not be left without power; processes exist to move customers, including Provider of Last Resort pathways described in Power to Choose materials (⁵). Still, credit quality and operational reputation belong on your vendor scorecard—especially for multi-year warehouse contracts.
Outside Texas: choice states and regulated markets
Not every warehouse sits in ERCOT choice territory. EIA reports that nineteen states and the District of Columbia allow some commercial and industrial customers to choose competitive retail marketers, and fifteen of those jurisdictions plus D.C. allow choice across customer classes. In ERCOT, customers of investor-owned utilities must buy from a competitive REP—participation is not optional the way it is in most other choice states (¹³).
Where retail choice exists outside Texas, the same structural idea applies: a competitive supplier can provide the energy commodity while the local distribution utility still delivers power to the meter (¹³). Historic EIA analysis of retail choice programs highlighted strong competitive-supply shares in Mid-Atlantic markets such as Maryland and noted Ohio among Midwestern states with meaningful customer-choice participation (¹⁶). Rules, shopping portals, and default service products differ by state—always check the state commission before assuming Texas-style Power to Choose mechanics apply.
In fully regulated markets, you cannot pick a REP. Your job shifts to tariff selection (secondary versus primary service, demand ratchets, interruptible options), utility energy-efficiency programs, and operational peak management. The warehouse physics stay the same; only the shopping channel changes.
A practical decision checklist for warehouse owners and tenants
Use this sequence when you renew, relocate, or open a Texas warehouse account:
- Map the wires company and choice status for the ESIID or service address.
- Export 12 months of interval data and note the top 15-minute peaks.
- Separate controllable peaks (charging, conveyor starts, lighting schedules) from weather-driven peaks.
- Decide risk tolerance — fixed, index, or hybrid—before you look at pennies.
- Solicit at least three comparable quotes on the same load file and term.
- Model all-in cost: energy + estimated TDSP demand/delivery + fees + taxes.
- Read termination, bandwidth, and billing determinant language line by line.
- Align contract end dates with lease options and budget cycles.
- Pair procurement with efficiency: lighting controls, dock seals, HVAC setpoints, and equipment sequencing cut both kWh and kW (¹⁴).
- Assign an owner for renewal reminders; Power to Choose reminds residential customers that expiring term contracts can default toward variable month-to-month products if you do nothing—commercial accounts face analogous risk when auto-renewal or holdover pricing kicks in (⁵).
Commercial electricity in Texas rewards preparation more than cleverness. The lowest advertised energy rate wins only if it survives contact with your demand peaks, delivery tariff, and operating calendar. Pull the meter data, force apples-to-apples proposals, and treat the warehouse power plan like any other high-dollar supply contract—because that is what it is.