H2OME

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Keeping the meat cold at the local butcher

A small-town butcher's whole business sits in a chiller and a freezer. A long outage can mean throwing out days of stock. This page looks at what a 15 kW system could hold.

Chillers and freezers around the clock

A butcher runs a walk-in chiller with carcasses and primals, a freezer, display cabinets out front and sometimes a smoker or a curing room. Refrigeration runs day and night, and compressors cycle on and off. A 15 kW system covers a typical small butcher's refrigeration with headroom for compressor starts. Very large walk-in freezer plants would need checking against that limit.

What it would keep running

  • Walk-in chiller
  • Freezer room
  • Display cabinets
  • Mincer, saw and vacuum packer
  • Till, EFTPOS and lighting

Keeping product safe

Food safety rules care about temperature over time. A long outage can push a chiller out of its safe range and force stock to be discarded, with records to explain why. An instant switch-over means the cool room never sees the outage, and the fuel cell carries on from stored hydrogen for as long as the store lasts.

Saws, mincers and the vacuum packer draw sharply when they start but run for short periods. They can share the system, though the pilot would set it up so cutting gear and big refrigeration starts are not all hitting at once.

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.

Cost compared with lost stock

The system charges on off-peak power and stores hydrogen at 30 bar or less, where it keeps for weeks. Round trip efficiency is 30% or less, so it costs more per unit than grid power. For a butcher, that cost sits against the value of a full chiller. The pilot would weigh that against how often the shop actually loses power.

Questions

Can it handle all the compressors starting at once?

The battery and inverter provide peak headroom for compressor starts. A very large freezer plant may still need staged restarts, which the pilot would set up rather than leave to chance.

Will it run the bandsaw?

A typical butcher's bandsaw fits within 15 kW, with a short surge at start. Heavy cutting gear running alongside every compressor at once could hit the limit, so loads would be staged.

How long will it keep the chiller cold?

That depends on how much hydrogen storage is fitted and how hard the refrigeration works. Hydrogen keeps for weeks without losing charge. We will size run time to the shop in the pilot rather than quote a number now.

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