two houses with solar panels completely covered in snow in mountains
image of house in green grass beside image of house covered in snow
house with snow on roof and in front of door
front of two houses covered in snow in the mountains with blue sky in background
front of 2 houses covered in snow with sun in background
two houses with solar panels completely covered in snow in mountains
image of house in green grass beside image of house covered in snow
house with snow on roof and in front of door
front of two houses covered in snow in the mountains with blue sky in background
front of 2 houses covered in snow with sun in background
Hydrogen seasonal storage

Col du Palet, The Alps, France

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Since June 2015, Enapter electrolysers have been producing hydrogen to keep this refuge in the French Alps operational year-round. Solar panels can not generate energy for skiers that seek shelter if covered by snow. However, hydrogen keeps 47 sleepers warm and fed at 2,600m high. In the summer, excess solar energy is stored as hydrogen and provides power during the winter. The hydrogen is stored in a small side building separate to the cabin to ensure the full safety of pressure tanks in altitude. 

More information here (in French).

Tech Specs
Electrolyser
500 NL/hr
Fuel Cell
2.5 kW
Storage
5 kg of hydrogen or 16 days of autonomy without PV
Pressure
30 bar
COD
2015
Partner
Powidian

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