Commercial Electricity for Dental Offices in Texas

Energy strategy for Texas dental offices

Dental practices sit at the small end of the commercial electricity market. A typical general dentistry office uses a fraction of what a mid-size restaurant or clinic uses, but the margins are tighter, the hours are long, and the operational tolerance for a service interruption is low. For a practice netting a healthy margin, every point of overhead reduction flows directly to the owner.

This guide covers how dental office electricity load actually behaves, how dental service organizations (DSOs) and group practices use portfolio leverage, where the common procurement mistakes happen, and how Electric Decisions runs a documented procurement built around real-world practice operations. Built for independent dentists, specialty practices (orthodontics, endodontics, oral surgery, pediatric dentistry), and DSOs across the ERCOT market.

How dental offices use electricity

Dental office load has three distinct components that peak at different parts of the clinical day.

Operatory load is a large share of total consumption. This includes operatory lighting, chair motors, delivery unit pumps, intraoral cameras, light-cure units, electric handpieces, and the dedicated computer at each chair. Operatory load tracks the clinical schedule almost exactly: it ramps up as hygienists and dentists start seeing patients, holds through the clinical day, and drops to near zero after hours.

Central equipment includes the dental compressor, central vacuum system, sterilization suite (autoclaves, instrument washers, ultrasonic cleaners), and imaging equipment (panoramic X-ray, cephalometric, and increasingly cone beam CT). The compressor and vacuum cycle through the day, and sterilization creates concentrated demand spikes at specific times.

Building systems account for the remainder: HVAC (significant in Texas because dental operations require tighter humidity and temperature control than typical office space), lighting, water heating, break room appliances, and front office equipment.

Load factor sits in a moderate range for most practices, which reflects the gap between clinical-hour peaks and overnight baseline.

For a plain-English walk-through of how commercial electricity gets billed, see the commercial electricity pillar guide.

What drives your monthly bill

The number on your dental office 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 and identical regardless of supplier.

Demand charges apply at larger service sizes. Most small dental offices are on a secondary service rate without a formal demand charge, but larger multi-chair practices and specialty offices can cross into demand-billed service classes. Dental compressors, central vacuum pumps, and sterilization equipment are the biggest demand drivers.

Regulatory, fees, and taxes cover PUCT assessments, ERCOT fees, gross receipts tax, and sales tax. Dental practices pay sales tax on commercial electricity in Texas unless the facility is organized under a nonprofit structure.

The practical implication: for a small dental office, the energy charge is the biggest single lever. For a larger practice or a group office, delivery and any demand charge start to matter proportionally more.

Contract decisions that move the number

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

Term length: Most Texas dental offices land on 24 or 36 month fixed-rate terms. Twelve-month deals suit practices expecting a build-out, a merger with another office, or a planned relocation.

What is actually fixed: A fixed-rate contract often lets delivery charges, regulatory pass-throughs, and (where applicable) supply-side demand charges float. For small practices, this matters less because the floating components are a smaller share of the bill. For larger specialty practices and group offices, it matters more.

Bandwidth: Your contract assumes a usage range. Adding a hygiene chair, bringing on an associate, installing cone beam CT, or expanding operating hours all change usage. If you expect operational changes, negotiate a wider band up front.

The early termination fee can be meaningful even for a small practice. The small business electricity procurement guide covers the broader clause review approach.

DSOs and group practices have real leverage

Dental Service Organizations (DSOs) and group practice networks have a procurement advantage that single-office owners do not: aggregated load. DSOs have grown rapidly in Texas, with major networks managing portfolios from a dozen to several hundred offices.

Suppliers price a combined DSO portfolio more aggressively because the volume is easier to hedge, one credit review covers all sites, and administrative cost is spread across more revenue.

Coordination questions for DSOs:

Renewal cohorts: A 50-office DSO on a single renewal date has maximum leverage but concentrated timing risk. Most larger DSOs split the portfolio into two or three cohorts.

TDU zone coverage: A statewide DSO spans multiple utility zones. Not every supplier bids every zone competitively, so the shortlist has to actually cover your footprint. The Texas Retail Electric Providers directory lists which suppliers actively bid each zone.

Add-a-site language: Growing DSOs acquiring new practices need a clean mechanism for adding meters to the master agreement without renegotiating.

De novo office treatment: New offices under construction need interim contract treatment that bridges from temporary construction service to permanent service.

TDU zones and where your practice sits

Texas has four investor-owned TDUs in the deregulated market plus municipal utilities. Oncor covers North Texas (Dallas, Fort Worth, Plano, Frisco, Arlington). CenterPoint covers Greater Houston. AEP Texas Central covers South Texas, AEP Texas North covers Central and West Texas, and TNMP covers non-contiguous zones.

Austin Energy and CPS Energy are municipal utilities that do not allow retail choice. Dental practices inside Austin or San Antonio city limits buy under the utility's tariff. See the Fort Worth commercial electricity page for North Texas detail or all Texas cities for broader coverage.

Where dental practices overpay

Dental practice margins are tight after staffing, lab, and supply costs.

Letting the contract roll to month-to-month. Holdover rates run well above market. This is the single most expensive and most avoidable procurement mistake.

Signing a long contract before a planned expansion. Adding chairs, hiring associates, or expanding hours materially changes usage. A 36-month contract signed six months before expansion creates a mismatch.

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

Treating all offices the same in a DSO. General practices, pediatric offices with longer evening hours, and oral surgery centers with imaging equipment have different load profiles. A one-size-fits-all contract across the portfolio leaves pricing on the table.

Timing the renewal

Start before contract expiry. For a single practice, three months of runway is enough. For a DSO or group practice, six months is safer.

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

How Electric Decisions runs a dental practice procurement

Five documented steps. Same process on a solo practice, same process on a 100-office DSO.

Step 1: Intake

We pull your last 12 months of usage from the TDU through a Letter of Authorization and profile every meter.

Step 2: Reference

We benchmark your current all-in cost against the live ERCOT forward curve for the exact term you are evaluating.

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, material change clause, pass-through caps, holdover language.

Step 5: Execution

We manage the switch so service never interrupts, then watch the market and put you back into competition before the next renewal.

Our margin is disclosed in writing before you sign.