Small Business Electricity
How Much Electricity Does an Automotive Business Use in Texas?
Texas automotive businesses use between about 680 and 9,790 kWh of electricity per month depending on building size and equipment, from a small tire and lube shop at the bottom to a large body shop or wash site at the top, as of September 2026. The figures come from EIA CBECS 2018 building-level intensity for service buildings adjusted for the West South Central region, an activity in which vehicle repair, service and storage buildings account for the majority of energy consumed.
What sets this category apart from every other kind of small business in Texas is that the load is driven by motors rather than by the weather. Your bill follows the work coming through the doors, not the thermometer, which makes it flat across the year and unusually easy for a supplier to price. The catch is at the other end of the bill, where hard-starting equipment can put you on a demand rate. Get both understood and you can lock a rate with real confidence.
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Last reviewed September 1, 2026. Method and sources at the bottom of this page.
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How much electricity does each type of auto shop use?
Texas vehicle service businesses land between about 0.27 and 0.98 kWh per square foot per month, and a shop's position in that band is set by how much of its work is powered rather than by how large the building is. A tire and lube shop sits low, a general repair shop in the middle, and a car wash or a machine shop at the top because pumps, motors and welders run for long stretches.
Take your own square footage and read across. Two buildings the same size can sit a column apart depending on what is bolted to the floor, so pick the column that matches the work rather than the one that matches the address.
| Floor area | Light equipment | Typical shop | Heavy equipment | Cost at typical to heavy |
|---|---|---|---|---|
| 2,500 sq ft | 680 kWh | 1,430 kWh | 2,450 kWh | $119 to $204 |
| 4,000 sq ft | 1,090 kWh | 2,280 kWh | 3,910 kWh | $191 to $327 |
| 6,000 sq ft | 1,630 kWh | 3,420 kWh | 5,870 kWh | $286 to $490 |
| 10,000 sq ft | 2,720 kWh | 5,710 kWh | 9,790 kWh | $477 to $817 |
| Columns are the 25th percentile, median and 75th percentile of building-level electricity intensity for service buildings in EIA CBECS 2018, multiplied by 1.087 for the West South Central region and divided by twelve. Cost applies 8.35 cents per kWh. | ||||
| Business | Position | What decides it |
|---|---|---|
| Tire and quick lube | Bottom of the range | Short job times and a very short equipment list |
| Auto repair shop | Middle | Compressor duty cycle across the working day |
| Auto body and collision | Middle to upper | Spray booth supply and exhaust air |
| Machine or welding shop | Upper, and peaky | Short heavy draws that set the monthly peak |
| Car wash | Top of the range | Pumps, blowers and vacuums, with volume following the weather |
Every category and the downloadable data: Small Business Energy Use Index.
How much electricity does an auto repair shop use?
A Texas auto repair shop uses roughly 1,430 to 2,450 kWh of electricity per month in a 2,500 square foot two or three bay building. The air compressor is the single biggest contributor, running through the day to feed impact tools and lifts, and the office and parts area typically account for more of the cooling load than the bays do because the bay doors spend so much time open.
The compressor is also the cheapest thing on the list to fix. Shop air leaks are almost universal and they make the compressor cycle for no work at all, which shows up on your bill every month until somebody walks the lines with a soapy bottle on a quiet Saturday. That costs nothing and it lowers both your total and your peak.
How much electricity does an auto body shop use?
A Texas auto body and collision shop commonly uses 3,420 to 5,870 kWh of electricity per month in a 6,000 square foot building. The spray booth is what separates a body shop from general repair: its supply and exhaust fans move large volumes of air whenever a job is in the booth, and on a booth with electric bake cycles the draw during cure is the hardest the shop pulls all day.
Booth scheduling is therefore worth more to you than it looks. Running the booth back to back through one part of the day, rather than firing it up repeatedly across the shift, is easier on the equipment and keeps your monthly peak from being set several times over. If your bill carries a kW line, that scheduling is money.
How much electricity does a tire and quick lube shop use?
A Texas tire and quick lube shop usually sits at the bottom of this category, often near 680 to 1,430 kWh per month in a 2,500 square foot building. The work is fast and the equipment list is short, so apart from the compressor feeding the impact guns and the tire machine, most of the bill is lighting and the office.
With a bill that size, look hard at the fixed monthly charge on any plan you are quoted. Spread across a thousand kilowatt-hours a base charge adds a real amount to your effective rate, and it is the sort of thing that decides which of two similar-looking offers actually costs less over a year.
How much electricity does a car wash use?
A Texas car wash sits at the top of this category and its usage swings harder month to month than anything else in it. Pumps, blowers, conveyor motors and vacuum turbines all draw heavily while a car is moving through, and because volume follows the weather, a dry sunny month and a wet one can differ enormously on the same site.
Two things follow from that swing. Any plan built around a usage threshold is a gamble, because you cannot promise a month above or below any particular line. And your peak is set by a tunnel running at full tilt on a busy Saturday, which is why a wash is among the likeliest businesses in this category to be demand metered. A plain fixed rate plus attention to the kW line is the combination that works here.
How much electricity does a machine or welding shop use?
A Texas machine or welding shop commonly runs 2,280 to 3,910 kWh per month in a 4,000 square foot building, but the monthly total understates the account. Welders and larger machine tools draw very hard in short bursts, so a shop with modest kilowatt-hours can still set a high monthly peak and end up billed on kilowatts as well as kilowatt-hours.
This is the clearest case in the category for reading your bill before you shop. If there is a kW charge on it, the money is split between two things that respond to completely different actions, and knowing the split tells you whether to spend your effort on the contract or on the schedule.
Which equipment uses the most electricity in an auto shop?
The air compressor is normally the largest single electricity user in a Texas auto shop, followed by lighting across the bays, then whatever the shop's specialist equipment happens to be, such as a spray booth, a wash tunnel or a welding set. Air conditioning ranks lower here than in almost any other Texas business, because CBECS found only a quarter of service buildings use packaged air conditioning at all.
That last figure explains a lot about how these bills behave. In a business where the doors stand open to the yard, conditioning the space is mostly pointless, so the load that dominates every other small business in this state barely features in yours. Your bill follows the work, not the thermometer.
| Load | Runs | Notes |
|---|---|---|
| Air compressor | Cycling all day | Leaks in the shop air lines make it cycle for no work |
| Lighting | Every open hour | High bays lit to working standard, the easiest line to cut with LED |
| Specialist equipment | Job by job | Spray booth, wash tunnel, welders, alignment rack |
| Lifts and shop tools | Short bursts | Small share of the total, meaningful share of the peak |
| Office and parts area | Business hours | Usually the only properly conditioned space on the site |
| Space heating | Cold snaps | Often gas or individual heaters, so it may not touch your electric bill |
What is the average electric bill for an auto repair shop in Texas?
A Texas auto repair shop's monthly electric bill commonly falls between about $119 and $204 for a 2,500 square foot building, applying the EIA average Texas commercial price of 8.35 cents per kWh to 1,430 to 2,450 kWh of use. A 6,000 square foot body shop lands nearer $286 to $490. If your account carries a demand charge, add that on top, because it is priced separately and does not follow your supply rate.
Use those as a rough check on your own statement rather than a figure to aim at. The EIA number is average revenue per kilowatt-hour across every commercial account in the state, mixing fresh contracts with accounts nobody has touched in years. Whether yours is high is a question your own bill answers in about five minutes.
Want the range rather than a single figure? TruBill™ estimates mild, average and peak months separately, which is more useful than one number for a business whose volume moves with the work coming in.
Why does your peak matter more than your total?
Because a shop full of motors can cross a utility's demand threshold on a modest monthly total. Demand is measured as your highest sustained draw, so starting a compressor, a lift and a welder within the same window can set a peak far above your average draw. Once you are demand metered, part of your bill is priced in kilowatts, and no supply rate you shop for will bring that part down.
You can work out roughly where you stand without any special equipment. A motor's shaft power in kilowatts is its horsepower multiplied by 0.746, and the draw at the wall is higher because no motor is perfectly efficient. Read the nameplates on your compressor, your lift and your largest tools, then add up what could realistically be running together on a busy morning.
| Nameplate | Shaft power | Roughly drawn at the wall |
|---|---|---|
| 3 hp | 2.24 kW | 2.5 kW |
| 5 hp | 3.73 kW | 4.2 kW |
| 7.5 hp | 5.59 kW | 6.4 kW |
| 10 hp | 7.46 kW | 8.5 kW |
| 15 hp | 11.19 kW | 12.7 kW |
Wall figures assume a motor efficiency of 88 percent, which is a stated assumption for illustration rather than a measurement of your equipment. Motors also draw considerably more than these figures during the moment of starting, which is why several pieces of kit starting together matters more than the same kit running together.
What to do with the number. If your total plausible simultaneous draw is well under your utility's threshold, forget demand entirely and shop purely on the supply rate. If it is anywhere near, staggering start-ups by a few minutes across the morning is free and it works. Either way, the number tells you which conversation to have.
Is an auto repair shop on a demand rate in Texas?
Often, and more often than the monthly usage would suggest. Texas delivery utilities move an account onto a demand-metered rate class once measured demand passes the threshold in their tariff, and heavy motor loads reach that point on relatively few kilowatt-hours. Check your bill for any line priced in kW: if one is there, you are demand metered and you have two levers rather than one.
Those two levers pull in different directions and it pays to know which is worth more at your shop. A competitive supply contract works on the kilowatt-hour side and is settled the day you sign. Sequencing your heavy equipment works on the kilowatt side and costs nothing but a habit. Send us a bill and we will tell you how the split falls on your account.
Thresholds and delivery charges are set by your utility, not your provider: Oncor, CenterPoint Energy, AEP Texas Central, AEP Texas North, TNMP.
How do you find your shop's actual electricity rate per kWh?
Divide the total dollars on your bill by the kilowatt-hours billed for the same period and multiply by 100 to get cents per kWh. Then look separately at any charge priced in kW, because that one is set by your peak and by your utility's tariff rather than by the retail provider you buy supply from.
- Take the total amount due on your latest bill, setting aside any late fee or balance brought forward.
- Find the kilowatt-hours billed for the same service period, usually printed alongside the meter read dates.
- Divide the dollars by the kilowatt-hours and multiply by 100 to get your all-in rate in cents per kWh, delivery charges included.
- Look for any charge priced in kW rather than kWh and total it separately, because that part of the bill responds to your peak and not to your supply rate.
- Run the same calculation on a busy month and a slow one, since a demand charge set by a single hard hour can carry across into months when the shop was quiet.
- Check when your term expires, because a contract that ran out unnoticed normally reverts to a month-to-month holdover rate.
Step four is the one that changes what you should do next. If the kW charges are a small slice, your whole opportunity is in the supply contract. If they are a big slice, no amount of rate shopping fixes the bill on its own, and the schedule deserves attention first.
Every line on a Texas business bill, explained: Understand Your Texas Electricity Bill.
Which electricity plan is best for an auto repair shop?
A fixed-rate contract of 12 to 36 months suits most Texas shops, because the load is steady across the year and predictable pricing lets you quote labour rates without watching the energy market. Plans that hinge on a usage threshold fit poorly, since a shop's monthly kilowatt-hours move with how many jobs came through the door rather than staying above or below any particular line.
| Plan structure | Fit | What it does to a shop account |
|---|---|---|
| Fixed rate, 12 to 36 months | Best fit | A flat year-round load is the easiest thing in the market to price, and you get certainty for the whole term |
| Bill credit at a usage threshold | Poor fit | Your volume follows the work, so the credit arrives in some months and not others |
| Minimum usage fee | Check the smaller shops | Comfortable for a body shop or a wash, a real risk for a small lube shop in a slow month |
| Free nights or free weekends | Poor fit | The bays run in daylight, which is when these plans recover the cost of the free hours |
| Indexed or wholesale-linked | Only if managed | Possible for a larger multi-bay site with someone watching it, wrong for everyone else |
The Safe-Rate™ score on each plan shows how far its effective price drifts as usage moves, which for a shop is the quickest way to filter out plans that only work in a month that happens to go your way.
Get a business electricity quote
Prefer to talk it through? Call 855-798-9075.
How do you compare small business electricity rates in Texas?
Price each offer at your own monthly kilowatt-hours, add the fixed monthly charge, and check the Electricity Facts Label for the term, the early termination fee and any threshold condition. If your account is demand metered, keep that charge out of the comparison entirely, because it is set by your utility's tariff and every retail provider passes it through the same way.
Leaving the demand charge out is what makes a shop comparison honest. It is often a large number, and letting it sit inside the total makes two supply offers look closer together than they really are. Strip it out, compare the part that is actually up for negotiation, then deal with the peak separately.
| Check | Why it changes the answer |
|---|---|
| Supply charges only | The demand charge is the same whoever you buy from, so it hides real differences |
| Price at your own kWh | Advertised rates are quoted at a usage level no shop matches |
| Fixed monthly charge | Matters most for the smaller shops in this category |
| Threshold conditions | Your volume follows the work, so a threshold is a bet rather than a benefit |
| Term and the month it ends | Sets which season you will be shopping in next time round |
| Early termination fee | The cost of moving if something better appears mid-term |
Compare small business electricity rates
Prefer to talk it through? Call 855-798-9075.
How do you find cheap business electricity in Texas?
Rank offers by what a full year would cost at your own usage rather than by the advertised rate. The lowest headline number in a Texas ZIP code frequently belongs to a plan carrying a threshold or a short introductory period, and for a shop whose monthly volume moves with the work coming in, that kind of plan is where the advertised price and the paid price part company.
What is genuinely available to you shifts with your ZIP code, your delivery utility, your usage and the term you pick. We refresh pricing hourly for that reason, and a free price alert will flag a better rate in your area rather than leaving you to keep an eye on it between jobs.
- Compare supply charges on their own if you are demand metered.
- Add the fixed monthly charge to every quote before ranking them.
- Check any threshold on the Electricity Facts Label against your quietest month.
- Look at the Safe-Rate™ score for how much a plan's effective price moves with usage.
- Price at least two term lengths, since the best short and long offers rarely come from the same provider.
More on timing: Texas Electricity Shopping Guide.
What is the best electricity company for a small business in Texas?
No one company is best for every small business in Texas, since the provider with the strongest price in one ZIP code at one usage level is frequently not the strongest in another. Weigh a provider on the cost of its plan at your own kilowatt-hours with fixed charges included, on the contract terms, on how it handles a commercial account, and on what your rate becomes when the term runs out.
For a shop there is one more thing worth asking about, which is whether the provider can talk sensibly about a demand-metered account. Plenty of small commercial desks are set up for straightforward kilowatt-hour customers and get vague the moment a kW line appears. We list plans from established Texas providers, score each for price stability, and keep a phone line staffed so you can ask before you sign. Browse the Texas electricity providers we work with, including Reliant Energy, TXU Energy, Constellation, Gexa Energy and Direct Energy.
Request a free business electricity quote
Prefer to talk it through? Call 855-798-9075.
When should an auto shop lock in an electricity contract?
Aim for a term that runs out in a mild month such as October, November, March or April instead of between June and September when Texas prices are seasonally at their highest. A contract expiring in August puts you back in the market in the most expensive quarter of the year, and a term left to lapse usually rolls onto a month-to-month holdover rate.
Pick the length that lands the end date where you want it rather than simply the cheapest headline. Because your load is flat across the year, you are a straightforward account to quote, and that is worth using: longer terms are easier to justify here than in a business whose usage lurches with the seasons. We show the renewal month on every plan before you order.
Term strategy in more depth: Texas Electricity Shopping Guide.
Can an auto repair shop switch electricity providers in Texas?
Yes, as long as the shop is in the deregulated part of Texas served by Oncor, CenterPoint Energy, AEP Texas or TNMP. Only the supply side of the bill changes hands. Your delivery utility keeps the wires and the meter, your three-phase service and your equipment are untouched, and nothing about the switch interrupts work in the bays.
Most owners begin looking 30 to 60 days before the term ends so the new contract starts the day the old one finishes. If you are mid-term, the early termination fee is named in your contract and weighing it against what a new rate saves over the remaining months takes a couple of minutes. Ring 855-798-9075 if you would rather someone did it with you.
Also useful: How to switch electricity providers. By market: Houston, Dallas, Fort Worth.
Auto shop electricity questions
Does three-phase power change my electricity rate?
Not the supply rate itself. Three-phase service affects which delivery rate class your utility puts you in and how your equipment draws power, but the price per kilowatt-hour you agree with a retail provider is quoted the same way either way. What three-phase usually signals is a shop with enough motor load to be worth checking for a demand charge.
Why doesn't my shop's electric bill jump much in summer?
Because most of your load is not weather driven. CBECS found only a quarter of service buildings use packaged air conditioning, and in a shop where the bay doors stand open there is little point cooling the space at all, so your bill tracks how busy the bays were rather than how hot the month was. A flatter profile across the year is an advantage when you go to lock a rate.
Does an air compressor use a lot of electricity?
Enough to be worth knowing the number. A motor's shaft power in kilowatts is its horsepower multiplied by 0.746, and the draw at the wall is higher still because no motor is perfectly efficient, so a 7.5 horsepower compressor is pulling somewhere above 6 kW whenever it is loaded. A compressor that cycles more than it should, usually because of a leak in the shop air lines, spends much of the day at that figure for no useful work.
Sources, method, and refresh schedule
Usage figures on this page are modeled, not measured. The method takes the building-level electricity intensity percentiles EIA CBECS 2018 publishes for the Service principal building activity, being 3.0 kWh per square foot per year at the 25th percentile, 6.3 at the median and 10.8 at the 75th, multiplies each by a regional adjustment factor and divides by twelve to give a monthly figure per square foot.
The regional adjustment is 1.087, calculated as the West South Central census division intensity of 13.7 kWh per square foot per year divided by the all-buildings figure of 12.6, both from the same table. West South Central covers Texas, Oklahoma, Arkansas and Louisiana. Applying an all-buildings regional ratio to a single activity assumes the regional effect is broadly similar across activities, which is an assumption rather than a published result.
The Service activity is a close fit for the businesses on this page rather than an approximation. EIA reports that vehicle storage or maintenance buildings account for 33 percent of energy consumption in service buildings and vehicle service or repair buildings a further 27 percent, so these building types dominate the published figures. EIA also reports that packaged air conditioners were the most common cooling equipment in service buildings at 25 percent, which is the basis for the statement on this page that air conditioning is a smaller share of the load here than in other commercial categories.
Two limitations apply. CBECS does not publish separate intensities for individual shop types, so no shop type on this page is assigned a figure of its own and each is positioned within the published range qualitatively. CBECS 2018 also predates the pandemic and any change in operating patterns since.
The horsepower to kilowatt figures are arithmetic, using the standard conversion of 0.746 kilowatts per horsepower for shaft power and a stated motor efficiency assumption of 88 percent for the draw at the wall. They describe nameplate ratings and are not a measurement of any particular installation. Starting current is higher than running current and is not represented in that table.
The Texas commercial price benchmark is from the U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A, average retail price to commercial customers. EIA calculates it as average revenue per kilowatt-hour across all reported commercial sales, so it blends recently contracted accounts with accounts that have not been repriced in years. It is a bill-level benchmark and not a rate available for purchase.
- U.S. Energy Information Administration, CBECS 2018, Table C14, electricity consumption and expenditure intensities.
- U.S. Energy Information Administration, CBECS 2018, Service building type report.
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A, published monthly.
- Delivery utility tariffs: Oncor, CenterPoint Energy, AEP Texas Central, AEP Texas North, TNMP.
- Power Choice Texas marketplace plan data, refreshed hourly.
Refresh procedure: the EIA price benchmark is updated monthly when Electric Power Monthly posts, and the review date at the top of the page is advanced then. CBECS intensity is updated when EIA publishes a new survey cycle. Delivery utility thresholds are rechecked when a utility files a revised tariff.
Power Choice Texas is a registered Texas electricity broker, PUCT registration BR190365. We are compensated by the retail electric providers whose plans appear on this site. See how we make money. This page is general information about electricity usage and plan structures. It is not a rate quote, a recommendation to switch, or advice about any specific account. PowerChoiceTexas.org is not affiliated with Power To Choose, powertochoose.org, or the Public Utility Commission of Texas.
