Backup Power for Medical Offices (2026): 9 Options Compared

For clinic owners and practice managers. Updated October 2, 2026 · Prepared by Prospyr. Prospyr makes practice software, not generators or batteries, and none of the companies below is a Prospyr product. Each summary reflects what the company publishes on its own website, checked October 2026. Sizing, installation, permits and pricing depend on your building and your local codes, so get a written quote from a licensed electrician or authorized dealer before you buy.

What backup power does a medical office need?

Most medical offices need two layers of backup power: a battery (a UPS) that keeps critical equipment running through the first seconds and minutes of an outage, and a longer-running source for anything that must keep going for hours. For a small clinic or med spa, the critical list is usually short: the medication refrigerator, the internet router and phones, a front-desk computer, and any device that would be damaged by a sudden shutoff. Surgical practices and ambulatory surgery centers have stricter requirements and should plan with an engineer.

The four kinds of backup power

• UPS (uninterruptible power supply). A battery unit that sits between the wall and your equipment. It covers short outages and gives devices time to shut down safely. Minutes, not hours.
• Portable or whole-home battery systems. Larger lithium batteries that can run a refrigerator and a few outlets for hours. Quiet, no fuel, no exhaust. Can be recharged from the grid or solar.
• Standby generator. A permanently installed generator, usually on natural gas, propane or diesel, with an automatic transfer switch that starts it when the grid fails. Runs as long as there is fuel. Needs a site, permits and an installer.
• Rental generator. Short-term power for a planned shutdown, a long outage, or a renovation. No capital cost, but you are competing with everyone else in a regional storm.

The 9 backup power options at a glance

How we chose this list

We picked companies a practice manager can reach directly or through a local dealer, and checked four things on each company's own website:

• Fit for a small medical building. Does it make products sized for an office, not only data centers and hospitals?
• Healthcare experience. Does it name healthcare, clinics or medical offices as a market?
• Local support. Is there a dealer, installer or branch network to size, install and service the system?
• Clarity. Does it explain the product types and how to get a quote?

We grouped the list by type: generators first, then UPS makers, then battery and rental options. The order is our editorial view, not a measure of results.

1. Generac

Generac makes home standby and portable generators, battery storage and, through Generac Industrial Energy, stationary generators, battery energy storage systems, transfer switches and microgrid controls. Its healthcare page names clinics and medical offices alongside hospitals and assisted living, and says it helps facilities meet NFPA standards and extended runtime requirements.

What stands out:

• Healthcare team. Generac states it has a team dedicated to healthcare solution design and implementation.
• Dealer network. Its site connects buyers with authorized dealers for estimates, and offers a solution finder to estimate generator size.
• Track record. It reports more than 65 years providing backup energy.

Right for: a clinic that owns or controls its building and wants automatic power for hours or days. Ask: whether your loads call for a residential-class or commercial unit, what fuel is available at your site, and who services the transfer switch and generator each year.

2. Cummins

Cummins designs and manufactures its generator sets, including the engine, alternator and controls. It lists diesel sets from 15 to 3,750 kVA and natural gas sets from 13 to 2,000 kW, and states its full line can run on hydrotreated vegetable oil. For healthcare it offers emergency power, prime power, combined heat and power, transfer switches, switchgear and remote monitoring.

Right for: larger practices, surgery centers and multi-tenant medical buildings that will hire an engineer to size and specify the system. Ask: for the smallest set that fits your loads, the local distributor's response time for service, and what remote monitoring costs.

3. Rehlko (Kohler)

Rehlko is the energy company that makes KOHLER generators. Its industrial business lists generators, uninterruptible power systems and microgrids for sites "from data centers to hospitals." Its Kohler home energy line sells standby generators that run on natural gas or propane, restore power within seconds, offer remote monitoring through an app, and use enclosures it says were tested to withstand 181 mph winds.

Right for: small clinics in a standalone building that want a standby generator from a long-established brand. Ask: your dealer whether a home-class unit is acceptable for a commercial building in your city, and whether the warranty changes for commercial use.

4. Briggs & Stratton Energy Solutions

Briggs & Stratton Energy Solutions sells standby generators, transfer switches, power management, battery storage (including SimpliPHI batteries), hybrid inverters, and generator and battery monitoring. It offers a commercial consultation, lists generator dealers and battery installers, and publishes a guide comparing battery storage with standby generators. Financing is listed for both product types.

Right for: clinics weighing a battery system against a generator, or combining both. Ask: how long a battery package would run your refrigerator and network equipment, and whether the dealer handles permits.

5. CyberPower

CyberPower makes standby, line-interactive and double-conversion UPS systems from 350 VA to 10,000 VA. Its Hospital/Medical UPS line is UL 60601-1 tested for standby power in patient-care settings and includes hospital-grade plugs and outlets and built-in electrical isolation. Its online UPS models list zero transfer time and generator compatibility.

Right for: practices that want battery backup on a device in a treatment room, plus standard UPS units at the front desk. Ask: your device manufacturer whether a medical-grade UPS is required, and how many minutes of runtime each model gives at your load.

6. APC by Schneider Electric

APC, a Schneider Electric brand, makes Back-UPS units for home and office and Smart-UPS units for networks and servers, plus PowerChute software that shuts computers down safely during an outage. Its site offers a UPS selector for small business and network-closet applications, a replacement battery selector and a recycling program for used batteries.

Right for: the front desk, phone system and network closet in almost any office. Ask: your IT provider to size a unit for your router, switch, phones and one workstation, and to set a battery replacement reminder.

7. Eaton (Tripp Lite series)

Eaton acquired Tripp Lite and sells its UPS systems, power distribution units, surge protectors, power conditioners, and PowerAlert management software under the Eaton Tripp Lite series name. Healthcare and small and medium businesses are among the markets it lists.

Right for: practices whose IT provider already buys Eaton or Tripp Lite gear. Ask: which models suit patient-care areas, and whether the UPS can alert your team by email when it switches to battery.

8. EcoFlow

EcoFlow sells portable power stations (DELTA 3 series), larger whole-home batteries (DELTA Pro Ultra X), and the OCEAN Pro home energy system with a 24 kW output rating. It also sells a smart electrical panel with 40 controllable circuits. Its products are marketed for homes, but a portable unit needs no installation and can run small loads in an office.

Right for: a small med spa in a leased suite that cannot install a generator and wants to protect a medication refrigerator and the front desk. Ask: how long a unit would run your refrigerator, how fast it switches over when the grid fails, and whether the warranty covers business use.

9. Sunbelt Rentals

Sunbelt Rentals reports more than 1,500 locations across North America and rents generators from small portable units to industrial sets, along with battery energy storage systems, electrical distribution, and temporary heating and cooling.

Right for: a planned utility shutdown, a long outage, or a renovation. Ask: whether you can set up a standing agreement before storm season, who connects the generator to your building, and what a weekly rental costs for your load.

Questions to ask any backup power provider

1. What exactly will this run, and for how long? List your critical loads (refrigerator, network, phones, one workstation, lighting, any clinical device) and ask for runtime in writing.
2. How fast does it switch over? A UPS covers the gap; a generator typically takes a short time to start and transfer. Confirm that sensitive equipment won't shut off in between.
3. Does my building, landlord or city allow it? Generators need permits, fuel and placement approval. Most leases require landlord consent.
4. Who maintains it? Ask about annual service, load testing, battery replacement schedules and response time for repairs.
5. What codes apply to my practice? Medicare-certified ambulatory surgery centers must follow the Life Safety Code and the NFPA 99 Health Care Facilities Code under 42 CFR 416.44, and keep an emergency preparedness plan reviewed at least every two years under 42 CFR 416.54. Office-based practices should ask their state health department, accreditor and local fire marshal.
6. What does the warranty cover in a commercial building? Some products are warrantied for homes; get commercial terms in writing.
7. Can it alert us? Remote monitoring or email alerts tell you when the power fails after hours, before medication warms up.

Where Prospyr fits

Backup power protects equipment; your practice software decides whether the day keeps moving. If your records live in a cloud system like Prospyr's aesthetic EMR, a UPS on the router and one front-desk laptop can keep charting and check-in going through a short outage. For temperature-sensitive stock, see our list of medical refrigerators for Botox storage, and for wiring and dedicated circuits, our list of laser room electrical and HVAC contractors. Or book a practice demo.

Frequently asked questions

Do medical offices need a backup generator?

It depends on your state, your accreditor and the procedures you perform, so confirm with them first. Even where no generator is required, many offices benefit from some backup power. A UPS for the network and front desk and a plan for the medication refrigerator cover the most common risks. Ambulatory surgery centers and practices doing procedures under sedation have stricter requirements and should confirm them with their accreditor and state.

What is the difference between a UPS and a generator?

A UPS is a battery that takes over instantly and runs for minutes; a generator runs on fuel for hours or days but takes a short time to start. Many practices use both: the UPS covers the switchover and the generator covers the long outage.

How do I keep Botox and other medications cold during a power outage?

Put the medication refrigerator on a backup source and add a temperature alarm that alerts you after hours. A battery system or generator can run a single refrigerator for hours. Check your product labels and your policies for what to do if storage temperatures were exceeded.

Can a med spa in a leased suite install a generator?

Sometimes, but it needs landlord approval, a site for the unit, fuel, permits and a licensed electrician. If that is not possible, a UPS plus a portable battery for the refrigerator and front desk is a practical alternative, and a rental generator can cover long outages.

How much does backup power cost for a medical office?

None of the generator or rental companies on this list publishes prices on the pages we checked, and costs depend on size, fuel and installation. A UPS for a front desk costs far less than a standby generator. Get two written quotes that list the loads covered and runtime.

Want your company considered?

We review this list quarterly. Companies that provide backup power or installation services to clinics can send their website and what they offer practices to info@prospyrmed.com. Inclusion is editorial and not paid.

Editorial scope

This guide is based on each company's public website, checked October 2026 with AI-assisted research, and on the federal regulations linked above. Companies did not review this article before publication. It is not a guarantee of results, engineering advice, or a substitute for a licensed electrician's assessment and checking references. Read our methodology or report a correction.