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Snowstorm outages: heat, water and a road you cannot drive

Heavy snow brings down lines under the weight of ice and closes the roads crews need. In alpine and high-country areas that can mean cold days with no grid.

Why snow is hard on the grid

Wet snow and ice load up lines and trees until branches fall across wires and poles lean. Repairs wait for the road to be cleared, then for crews to reach each break on foot or by machine. A household relying on a petrol generator faces the same closed road when the jerry cans run low. Stored hydrogen made in advance does not need a fuel run, which is the point of having it in snow country.

What it would keep running

  • Heat pump in the main living area
  • Heat trace or pump keeping water lines moving
  • Wood burner flue fan
  • Freezer and fridge
  • Electric blankets for bedrooms

Heating within 15 kW

Heating is the load that matters most, and it is also the hungriest. A heat pump is far easier on storage than resistive panel heaters, so run it in one living space and close doors to unused rooms. If you have a wood burner, use it as the main heat and keep the electric load for the fans, lights and pumps.

Keep the hot water cylinder off unless you need it, and heat water in shorter bursts timed for showers and dishes. A full cylinder reheat from cold is one of the biggest single drains on stored energy in a house, and in a snowstorm that energy is better spent on keeping one room warm.

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.

Cold and the equipment

A fuel cell makes water as its by-product, and water freezes. How the system behaves in sustained sub-zero conditions is something the bench demo and pilot homes will test, so we will not claim it is proven in the snow yet. A sheltered, insulated enclosure out of drifting snow is the sensible starting point. Keep the vent outlet and intake clear after each fall, the same way you would clear a flue.

Questions

Will it run my whole house heating?

It depends on what that heating is. The output is 15 kW continuous, so one or two heat pumps fit comfortably. Large resistive heating systems or electric underfloor heating across the whole house would drain storage fast. Sizing your actual heating load is part of the pilot process.

Can I clear snow off the enclosure?

Yes, gently, and keep the vent and air intake clear. Do not chip ice off fittings with tools. If ice has built up on valves or pipework, leave it and let the system report any fault rather than forcing anything.

What about frozen water for the electrolyser?

Its de-ionised water supply should be protected from freezing like any other water line. Charging usually happens overnight, which is the coldest time, so the pilot installs need to show this works in alpine conditions before we say it does.

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