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When the lights go out mid surgery at the vet

A rural vet clinic deals with calving emergencies, dog attacks and sick pets at all hours, often in bad weather. Here is what a hydrogen backup system would need to hold.

Surgery cannot pause for the grid

The worst moment for a power cut is under anaesthetic. Surgical lights, patient monitors and the warming pad all need to keep running without a flicker. A battery and inverter in UPS mode switch over instantly, so the theatre does not notice. Monitors with their own batteries are still sensible, but the room around them stays lit and warm.

What it would keep running

Surgical lights and theatre circuits
Vaccine and drug fridges
Heated kennels and warming pads
Autoclave and bedding dryer
Practice software and phones

Fridges, kennels and the X-ray

Away from theatre, the clinic runs vaccine and drug fridges, heated kennels for hospitalised animals, the autoclave, a dryer for bedding, and the practice software. A digital X-ray unit can draw a sharp burst when it fires, which the inverter's peak headroom is designed for, though the pilot would check each unit.

A 15 kW system is a good match for a small to medium practice. A large clinic with several theatres, a busy laundry and a hydrotherapy pool may need a larger or multi-unit setup, and the pilot would say so plainly rather than stretch one unit too far.

How it works →

The H2OME loop: an electrolyser splits water into hydrogen, the hydrogen is stored in a tank for weeks, a fuel cell turns it into electricity for your home, and the water returns to the loop.

Quiet for the patients

Animals recovering from surgery do not need a diesel generator thumping outside the kennel room. The fuel cell has no engine, so it is quiet. It charges on cheap night-rate power and holds hydrogen for weeks. Round trip is 30% or less, so this is backup, not a cheaper way to run the clinic every day.

Questions

Can it run the X-ray machine?

Many small digital X-ray units draw short bursts the inverter can handle within its peak headroom. Older or larger units vary a lot, so the pilot would test the specific machine before relying on it.

Will anaesthetic monitors cut out?

No. The battery and inverter act as a UPS, so the switch-over is instant. Monitors should still keep their own batteries charged, as good practice, but they will not see the outage.

Does it suit a large animal practice?

It suits the clinic building. Calving and farm calls happen on site with the vet's own vehicle kit. The clinic loads, fridges and kennels are what the system is sized for.

Elsewhere

Every use →

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