Avocado blocks commonly use micro-sprinklers or drip lines fed by a pump from a dam, bore or scheme supply, with filters, a fertigation injector and a controller that runs short frequent cycles. Soil moisture probes tell the grower when to water. Many orchards are on hilly country with long lines and frequent outages in summer storms. If the controller resets after an outage, schedules can be lost or watering can double up, which is a real risk on fruit that dislikes wet feet.
A modest drip pump, filters and fertigation gear on a family orchard block can fit within 15 kW continuous. High-lift pumps pushing water up long hills to many blocks, and frost wind machines, usually draw more and would need a larger or multi-unit setup sized in the pilot, or are not a fit. Round-trip efficiency is 30% or less, so watering from hydrogen is for outages, not everyday savings.
How it works →
Hydrogen is made overnight on off-peak power, or from a wind turbine, and stored at 30 bar or less for weeks. When the grid drops, the UPS-mode inverter takes over instantly, so the irrigation controller keeps its schedule and the pump carries on its cycle. The fuel cell's by-product is water, which goes back into the system's own loop rather than out to the trees.
Yes. The inverter runs in UPS mode, so the controller sees no break, keeps its schedule, and does not restart cycles from the beginning. That avoids accidental double watering, which is exactly what you do not want on trees prone to root rot.
Possibly not. High-lift pumps on hilly orchards often draw well over 15 kW. The pilot would log the pump, and if it does not fit, we will say so rather than undersize it.
It needs about 9 litres of filtered, de-ionised water per kg of hydrogen, and most comes back from the fuel cell. Compared with orchard irrigation, that is a tiny amount.
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