Commercial Electricity for Hospitals in Texas
What a Texas hospital pays for power - round-the-clock ventilation and cooling, imaging, sterilization, and life-safety systems - plus how the biggest energy users manage it.
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Texas has over 400 hospitals, and they are among the most energy-intensive buildings in existence: they never close, ventilate enormous volumes of air, and run imaging, sterilization, and life-safety systems continuously. Below is what hospitals use and pay, and where the power goes. See related guides for urgent care & outpatient centers and medical & diagnostic labs, or browse all commercial electricity guides by business type.
Key Takeaways
- Hospitals average about 27.5 kWh per square foot per year of electricity - far above most buildings.
- A mid-size community hospital uses roughly 600,000–1,000,000 kWh a month (about $50,000–$85,000 at ~8.3¢/kWh).
- Energy runs around $10,900 per staffed bed per year.
- HVAC and ventilation dominate, followed by medical equipment and imaging.
- Ventilation optimization, LED, and a competitive fixed rate (plus on-site generation) are the biggest levers.
Hospital Electricity, by the Numbers
Figures are estimates that scale with size and services. See methodology and sources below.
What It Costs to Power a Hospital
At about 27.5 kWh per square foot per year - and running 24/7 - a hospital's electric bill dwarfs almost any other building. High air-change ventilation for operating rooms and isolation areas, imaging, sterilization, and life-safety systems all run continuously across hundreds of thousands of square feet.
Estimated usage & bill by hospital size
| Hospital size | Beds | Monthly usage | Est. monthly bill* |
|---|---|---|---|
| Small / rural | 25–50 beds | 150,000–300,000 kWh | $12,000–$25,000 |
| Mid-size community | 100–200 beds | 600,000–1,000,000 kWh | $50,000–$85,000 |
| Large medical center | 400+ beds | 1,500,000–3,000,000+ kWh | $125,000–$250,000+ |
*Electricity portion at Texas's ~8.3¢/kWh average commercial rate. Many hospitals also run natural gas or on-site cogeneration for heating and steam, billed separately.
How does the Texas commercial rate compare?
Texas businesses pay an average of about 8.3¢ per kWh - roughly 38% below the U.S. commercial average of ~13.5¢. Because Texas is deregulated, you can shop the supply portion of your bill across 30+ retail providers and lock in a fixed rate - compare current commercial electricity rates.
Ventilation, Imaging, and Round-the-Clock Load
Moving and conditioning huge volumes of air is the dominant load, with imaging and medical equipment next. Because everything runs 24/7, even small efficiency gains scale into large savings.
| System | Why it draws power | Approx. share of the electric bill |
|---|---|---|
| HVAC & ventilation | High air-change cooling for ORs, isolation, and wards, 24/7 | 40–50% |
| Medical equipment & imaging | MRI, CT, X-ray, and clinical devices | 15–20% |
| Lighting | Patient rooms, corridors, and clinical areas | 10–15% |
| Sterilization, lab & pharmacy | Autoclaves, analyzers, and cold storage | 8–12% |
| Kitchen, laundry, IT & other | Food service, laundry, data, and elevators | 10–15% |
Shares are illustrative; teaching and specialty hospitals with heavy imaging shift more toward equipment.
Demand Charges at Hospital Scale
Most of your bill is energy — the total kilowatt-hours (kWh) you use over the month. But many commercial accounts also carry a demand charge, billed on your single highest peak of power draw, measured in kilowatts (kW), usually over a 15-minute interval. It doesn't matter only how much electricity you use, but how fast you use it at your busiest moment.
How to keep demand charges down
- Optimize air-change rates where codes allow, and add energy recovery on ventilation.
- Sequence chillers and large equipment to avoid stacking peaks.
- Use on-site generation or storage to shave demand during peak events.
- Sub-meter and analyze interval data to target the biggest peaks.
Demand Response for Hospitals
Demand response is a program where businesses agree to reduce their electricity use for short windows when the Texas grid (ERCOT) is under strain — typically late afternoons on the hottest summer days. In exchange, participating businesses earn payments or bill credits.
Where Hospitals Cut Energy Costs
- Lock in a competitive rate or contract. At hospital scale, a well-timed fixed or structured contract is a major lever.
- Optimize ventilation. Right-sizing air-change rates and adding energy recovery targets the biggest load.
- Upgrade chillers and controls. High-efficiency chillers and a strong building management system cut usage across the campus.
- Convert to LED. LED across patient rooms, corridors, and clinical areas cuts a 24/7 load.
- Consider on-site generation. Cogeneration and storage lower demand charges and improve resilience.
- Sub-meter and manage peaks. Interval data and peak management flatten the demand charge.
Related Commercial Electricity Guides
Frequently Asked Questions
How much electricity does a hospital use in Texas?
Hospitals average about 27.5 kWh per square foot per year. A mid-size Texas community hospital uses roughly 600,000 to 1,000,000 kWh per month, or about $50,000 to $85,000 at the state's average commercial rate of about 8.3¢ per kWh. Large medical centers use far more.
What uses the most electricity in a hospital?
HVAC and ventilation dominate because hospitals run 24/7 and move enormous volumes of air for operating rooms, isolation, and wards, followed by medical equipment and imaging, then lighting and sterilization.
What is the average commercial electricity rate in Texas?
Texas businesses pay an average of about 8.3¢ per kWh as of 2026, roughly 38% below the U.S. commercial average of about 13.5¢. Your actual rate depends on your ZIP code, utility (TDU), usage, and when you sign your contract.
How can a hospital lower its electricity bill?
At hospital scale the biggest levers are optimizing ventilation air-change rates and adding energy recovery, upgrading chillers and building controls, converting to LED, considering on-site generation, and locking in a competitive contract.
Why are hospital demand charges so large?
A large hospital's simultaneous chiller, air-handler, and imaging load can peak at hundreds or thousands of kilowatts. At $5 to $15 per kW, that single monthly peak can represent tens of thousands of dollars, which is why many hospitals invest in on-site generation and peak management.
Do hospitals participate in demand response?
Many do. Without ever compromising patient care or life safety, hospitals use on-site generators and non-critical load curtailment during grid emergencies to earn payments while supporting grid reliability.
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Business count: U.S. Census Bureau, County Business Patterns 2023 - 491 general medical and surgical hospitals (NAICS 6221) in Texas. Average commercial rate: EIA / state commercial averages (Texas ~8.3¢/kWh; U.S. ~13.5¢/kWh, 2026). Usage uses a ~27.5 kWh/sq ft/yr hospital benchmark and ~$10,900 energy per staffed bed per year; the energy-user split is illustrative. Bills are electricity-only and exclude natural gas, on-site generation, taxes, fees, and account-specific demand charges.
