Freshwater hatcheries usually run pumps that lift or recirculate water through incubators and raceways, aerators or oxygen diffusers, UV sterilisers, and alarm systems that wake someone when levels drop. Some add chillers to hold water temperature. Many sit up remote valleys where the power line is long and outages are common. Fish in a tank with no water movement run out of oxygen far faster than a person can fetch fuel and start a generator.
The LiFePO4 battery and hybrid inverter take the load the instant the grid fails, so pumps and aerators do not stop at all. The fuel cell then runs from stored hydrogen, held at 30 bar or less for weeks. Many hatcheries sit beside running water, which makes micro-hydro a natural way to make the hydrogen without the grid.
How it works →
Small hatcheries with modest pumps, aeration and UV can sit within 15 kW continuous. Large sea-cage operations, big recirculating systems and chiller plants are well beyond one unit and would need a larger or multi-unit setup, or another approach. That is worked out in the pilot from your pump curves and loads. Round-trip efficiency is 30% or less. For a hatchery, the value is in never losing stock to a stalled pump.
No. The inverter runs in UPS mode, so there is no gap for a pump or controller to notice. That is the most important part for fish in tanks, because even a short stall followed by a slow restart can stress eggs and fry.
Yes. Micro-hydro is one of the three supported charging sources, alongside off-peak grid power and wind. A hatchery on a stream is often a good candidate, subject to water rights and the pilot site check.
Not on a single unit. Sea-cage and large recirculating operations draw far more than 15 kW. The honest answer is that a much larger setup or a different solution would be needed there. Small freshwater hatcheries are the realistic fit.
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