Commercial Electricity for Auto Dealerships in Texas

Energy strategy for Texas auto dealerships

Auto dealerships carry an electricity profile that most generic commercial rate plans do not fit well. Showroom lighting runs intense display wattage, service bays run compressors and lifts, body shops with paint booths add major HVAC and curing load, lot lighting runs around the clock, and EV charging infrastructure is becoming a meaningful line item at any dealership selling electrified inventory. The result is a load that is heavier than a typical office building and more variable than a steady industrial site.

This guide covers how dealership load behaves across the day and week, how dealer groups and multi-rooftop operators use portfolio leverage, where common procurement mistakes happen, and how Electric Decisions runs a documented procurement built around dealership operations. Built for independent dealers, franchise rooftops, luxury dealers, and dealer groups across the ERCOT market.

How dealerships use electricity

Dealership electricity load has four distinct zones that peak at different times.

Showroom and interior display: Showroom lighting uses high-wattage display fixtures to make inventory look right, HVAC runs harder in large glass-front spaces because of solar gain, and interior lighting runs during business hours. Luxury and new-car brands tend to run higher display wattage than used-car or value brands.

Service and parts: Service bay lighting, air compressors, lifts, battery testers, alignment equipment, and the parts department. Service bays create demand spikes when multiple lifts and compressors run simultaneously, particularly during morning drop-off and afternoon pickup windows.

Body shop (where present): Paint booths require significant air handling, high-temperature curing, and tight environmental control. Dealerships with full-service body shops often have the largest electricity bills of any single commercial category outside restaurants and industrial sites.

Lot and exterior: Lot lighting runs around the clock for security and inventory visibility, plus signage and perimeter lighting. Lot lighting is one of the largest single LED retrofit opportunities in the industry.

EV charging is becoming a fifth load zone: A single DC fast charger can draw significant peak demand. Dealerships investing in dedicated EV charging infrastructure for customer deliveries and service loaners are seeing meaningful load additions that need to be built into contract bandwidth.

Load factor sits in a moderate range for most dealerships, with body-shop-heavy and 24-hour-service dealers pushing higher.

What drives your monthly bill

The number on your dealership electricity bill is not one price. It is a stack of charges.

The energy charge is the per-kWh number suppliers quote. Under a typical fixed-rate contract, this is the only piece that is actually locked.

TDSP delivery charges cover poles, wires, transformers, and metering. Regulated.

Demand charges matter for dealerships because of the demand spikes created by service bay operations, paint booths, and EV charging infrastructure.

4CP transmission applies to larger dealerships (roughly 700 kW peak and above). Single-rooftop dealerships rarely hit that threshold, but large multi-brand facilities, dealership groups with consolidated metering, and dealerships with large body shops sometimes do. The TDU delivery charges explained guide covers delivery components in detail.

Regulatory, fees, and taxes cover PUCT assessments, ERCOT fees, gross receipts tax, and sales tax.

Contract decisions that move the number

Three decisions do most of the work on a dealership electricity contract.

Term length: Most Texas dealerships land on 24 or 36 month fixed-rate terms. Twelve-month deals suit dealers expecting market softening, planning a major renovation, or anticipating a brand change.

What is actually fixed: A fixed-rate contract often lets delivery charges, 4CP, regulatory pass-throughs, and supply-side demand charges float. For dealerships with large demand charge exposure, the delta between a true fixed and a pass-through contract can be material.

Bandwidth: Your contract assumes a usage range. Adding EV chargers, expanding a service department, bringing on a new franchise, or opening a satellite location all change usage. If EV infrastructure is on the near-term roadmap, negotiate a wider band up front.

The early termination fee can be substantial for a high-load dealership. The Texas early termination fees guide covers how ETFs are calculated.

Dealer groups and multi-rooftop operators have real leverage

Dealer groups managing multiple rooftops have a procurement advantage that single-dealer owners do not: aggregated load. Suppliers price a combined portfolio more aggressively because the volume is easier to hedge.

Coordination questions:

Renewal cohorts: A multi-rooftop group on a single renewal date has maximum leverage but concentrated timing risk. Groups with eight or more rooftops often stagger into two or three cohorts.

TDU zone coverage: Statewide dealer groups span multiple utility zones. The shortlist has to cover your footprint. See Oncor coverage, CenterPoint coverage, AEP Texas Central, AEP Texas North, and TNMP coverage.

Add-a-site language: Groups acquiring new rooftops need a clean mechanism for adding meters to the master agreement.

EV charging planning: If one or more rooftops is adding significant DC fast charging capacity, the contract bandwidth and demand provisions need to anticipate it.

Where your dealership sits

Dealerships cluster in major Texas metros, with the densest corridors in the DFW suburbs, Greater Houston, Fort Worth, and the San Antonio and Austin metros. See the Fort Worth commercial electricity page or Houston commercial electricity page for metro-specific market detail. Dealerships inside Austin or San Antonio city limits buy under the municipal utility's tariff.

Where dealerships overpay

Letting the contract roll to month-to-month. Holdover rates run well above market.

Ignoring the body shop load. Dealerships with on-site paint booths carry concentrated demand that the energy rate alone does not reflect. Signing without reviewing demand charges can leave meaningful money on the table.

Signing before EV infrastructure build-out. A 36-month contract signed before adding DC fast charging locks in a bandwidth assumption that will break. Volume outside the band gets priced at spot.

Comparing only cents per kWh. Pass-throughs and bandwidth penalties change the real cost.

Treating all rooftops the same in a group. A luxury rooftop with a full-service body shop runs very differently from a used-car satellite. One-size-fits-all contracts across the group leave pricing on the table.

Timing the renewal

Start before contract expiry. For a single rooftop, three to six months of runway is enough. For a dealer group or a dealership with a full-service body shop, six to nine months is safer.

The single most avoidable mistake is starting in the final 30 days.

How Electric Decisions runs a dealership procurement

Five documented steps. Same process on a single rooftop, same process on a 20-rooftop group.

Step 1: Intake

We pull your last 12 months of usage from the TDU through a Letter of Authorization and profile every meter, flagging body shop and EV charging load separately.

Step 2: Reference

We benchmark your current all-in cost against the live ERCOT forward curve.

Step 3: Competition

We run an identical-specs RFP against the suppliers who bid your zone or zones competitively.

Step 4: Contract

We red-line the paperwork in plain English. ETF, bandwidth (with EV expansion built in), material change clause, pass-through caps, holdover language.

Step 5: Execution

We manage the switch so service never interrupts and watch the market through your term.

Our margin is disclosed in writing before you sign.