Hydrogen From Tap Water

Spanish scientist José Antonio G. I. developed a prototype system to extract hydrogen from tap water without electrolysis. Pressurized air injected into a tank of water, ferrosilicon, and sodium hydroxide causes a chemical reaction to extract the hydrogen through two additional tanks that can produce 30 litres of hydrogen per minute. Allowing hydrogen to be generated at the point of consumption removes the need for hydrogen transportation.

Sand Battery

Researchers in Finland have commercialised sand battery technology that can store heat energy from excess generation. The excess electricity is used to heat air, and energy is then transferred from the air to the sand using a heat exchanger. The sand battery has been deployed in the town of Kankaanpää in western Finland and is used to power the central heating system for the district.

Urine Fertiliser

Farmers and researchers in Niger have conducted trials of urine fertiliser from 2014 to 2016 and achieved a 30% increase in pearl millet yield compared to standard fertiliser. Urine fertiliser is also a much more environmentally sustainable alternative to regular fertiliser.


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