Generator rental for supermarkets and wholesale clubs
In your supermarket, a power outage affects the meat counter and the checkout line simultaneously. Our generator keeps refrigerated counters, cold rooms, and checkouts running when the grid goes down.
We serve from neighborhood markets to wholesale clubs, with power calculated for your store.
- Keep counters and cold rooms at the right temperature
- Continue selling with checkouts and payment systems running
- Pay only for the power your store uses, calculated at no cost
Black Friday No Blackout
- Condition
- Special conditions, defined by the consultant in each proposal
- Applies to
- Generator rental contracts signed by 11/30/2026
- Regulation
- On the campaign page
What stops in the supermarket when the power goes out?
When the power goes out, refrigeration, registers, lighting, and air conditioning in the supermarket shut down, often with the store full.
Counters and cold rooms
The compressors stop, the temperature of meats and frozen goods rises, and you risk discarding merchandise.
Checkout area
Registers, scales, and card machines shut down in the middle of a purchase, with the customer standing in line.
Bakery and butcher shop
The bakery’s electric ovens and the butcher shop’s machines stop, and the day’s production is delayed.
Aisles and sales floor
Without light in the aisles, your team stops restocking and it’s difficult to monitor the sales floor. The air conditioning also shuts down, and the environment becomes stuffy quickly, especially in the summer.
Black Friday Without Blackout: special conditions for generator rental contracts signed by 11/30.
See conditionsGenerator for neighborhood market, supermarket, and wholesale club
The generator varies according to the store format and the number of counters, rooms, and registers it maintains.
Neighborhood market
With few counters and registers, your neighborhood market usually operates well with a compact generator.
Supermarket
The frozen food islands, stock rooms, and bakery add more motors and require more power.
Wholesale club
The large sales floor, bigger rooms, and many open registers require a high-power generator.
Why does refrigeration change the generator calculation?
Refrigeration changes the calculation because the same generator powers engines that draw a lot of energy at startup and sensitive electronics.
- At startup, the compressor motor usually draws 5 to 7 times its nominal current
- Cash registers, scales, and computers consume little but depend on stable voltage to operate
In a small generator, starting the compressors can drop the voltage and disrupt the cash registers. In extreme cases, it can shut down the generator itself.
With the right power, you keep cooling and sales together without paying for a larger generator than necessary.
Our engineering does this calculation at no cost and indicates the model among the ranges of generator rental.
Who turns on the generator when the power goes out at the supermarket?
The generator is turned on by the ATS, the automatic transfer switch. With it, the generator stays on standby, connected to your store’s installation.
When the utility fails, the ATS activates the generator and transfers the load in seconds.
The quick switch also protects your store’s sensitive equipment from voltage spikes and abrupt shutdowns.
For the switch to be automatic, your standby generator needs an ATS installed, according to the project and commercial proposal.
Our own logistics delivers the generator, installs it, and performs the load test at the store.
While it is with you, the telemetry monitors the equipment and our on-call service is available 24 hours.
If the power has already gone out, call 0800 772 1601 and learn about the emergency generator rental.
When to rent generators for supermarkets?
The rental of generators for supermarkets covers four moments of your store, each with its own contract duration.
- On standby with ATS, the generator takes over refrigeration and registers when the utility fails
- During renovation, it maintains cooling during the replacement of the electrical panel or transformer
- At the inauguration, it covers the wait for the permanent connection of the new store
- On high-traffic dates, it serves the crowded store on Black Friday and during the year-end holidays
How do we protect Danone’s cold chain?
We protect Danone’s cold chain with standby at the cooled distribution center, the largest of the company in Brazil.
We installed a 1,400 kVA generator, a 3,200 amp transfer switch, and over 1,500 meters of cables.
Without cooling, this warehouse falls out of the parameters required by health surveillance for perishables, as shown by the Danone Alimentos case.
Blackout-free Black Friday at your supermarket
On Black Friday, 11/27, a power outage stalls the registers and heats the counters with the store full.
The generator rental contract signed between 10/16 and 11/30/2026 receives the special conditions of the Blackout-Free Black Friday.
Our consultant defines the conditions based on the project, the term, and the service region of your store.
They depend on credit analysis and availability, without accumulating with other conditions or existing contracts.
Check the regulations on the campaign page and visit our page of power generator for Black Friday.
Who already relies on Tecnogera
Frequently asked questions
How much does it cost to rent a generator for a supermarket?
The cost depends on the power in kVA, rental duration, fuel, and transportation to your store. Our engineering team calculates the power at no cost before the proposal.
What is the generator power for a supermarket?
It depends on the counters, chambers, registers, and air conditioning units you want to keep running. In our fleet, the ranges start with models up to 100 kVA and exceed 1,400 kVA.
Does the generator turn on automatically when the power goes out in the supermarket?
Yes, when the store has an automatic transfer switch, the ATS, installed according to the project and commercial proposal. It activates the generator and transfers the load in seconds.
Is a diesel generator suitable for a supermarket?
Yes, and our fleet also includes biodiesel, natural gas, and biogas generator sets. Our team recommends the fuel according to your store’s project.
Can’t your operation stop?
Our team of experts is ready to assist you.
