Home / Uses / Keeping a rural school running through power cuts
Small rural schools often sit at the end of a long line, and an outage there can mean sending children home. Here is what a hydrogen backup system would need to carry to keep the doors open.
It is rarely the lights. A country school closes when the bore or tank pump stops and the toilets cannot flush, when heat pumps go cold in a July frost, or when the server cupboard and Wi-Fi drop and the day's lessons live in the cloud. Add a staffroom fridge, the office phone system and a trolley of Chromebooks charging, and you have the real load list, which sits comfortably inside 15 kW.
The system's LiFePO4 battery and hybrid inverter run in UPS mode, so when the line drops the switch-over is instant. Interactive panels do not reboot mid lesson, the office computer does not lose an enrolment form, and the network cupboard stays up. The fuel cell then takes over from stored hydrogen for a long outage, with no generator to start and no fuel for a principal to carry in a jerry can.
How it works →
In a district outage the school hall is often where families end up, for a cup of tea, a charged phone and news. Hydrogen stored in the buffer at 30 bar or less keeps for weeks, so the system can sit ready through the term holidays without fuss.
Charging happens on off-peak night power, or from a wind turbine where the board has one. Round trip is 30% or less, so this is resilience spending, not a way to trim the power bill. A board weighing it up should compare it with what a closed day really costs the school and the families who have to collect children early.
For a typical two to four classroom school, the usual daytime mix of heating, lighting, devices, pumps and the office fits inside 15 kW continuous. Large electric kilns, commercial kitchens or a heated pool would need checking, and the pilot would size around what the school actually runs.
There is no engine to service and no fuel to buy, and it monitors itself with redundant leak sensors and automatic shutdown. Water for the electrolyser is filtered and de-ionised on board. Ongoing maintenance arrangements would be worked out with each pilot site.
It is designed to AS/NZS 60079 and ISO 19880, with hydrogen stored at low pressure and automatic venting if a fault is detected. It would be sited in a fenced, ventilated spot away from play areas, agreed with the board and installer.
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