'Alchemy of energy': Breakthrough offers mass hydrogen storage options

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'It's a game changer': The promise of low-cost hydrogen storage to power our homes and businesses is a lot closer to becoming a reality

The promise of low-cost hydrogen storage to power our homes and businesses may be a lot closer to becoming a reality if new technology developed and owned in Australia can make a speedy transition from the lab.

"You can call me an alchemist, if you will," Professor Aguey-Zinsou said, laughing. "It is a game changer in how we use electricity - it's like the internet revolution."The scientist said he had spent 20 years developing the metal hydrides that can bond with hydrogen. The solid-state mix can operate in a range of temperatures – such as from minus-10 to 50 degrees – depending on the climate the storage was intended for.

Professor Aguey-Zinsou at the laboratory on the UNSW campus, where his hydrogen storage components are tested.UNSW"s Hydrogen Energy Research Centre, backed by $10 million from Providence Asset Group, reckons it is ready to produce the world's first hydrogen batteries for households as soon as early 2021.

Amy Kean, a board member of the hydrogen centre and director of Stride Renewables, said the household batteries would most likely hold up to 60 kilowatt-hours, or about five times the capacity of existing lithium storage on the market. About 130 centimetres high, the size of a small fridge, each would weigh 196 kilograms.

The conversion of electricity to hydrogen and back again would "multiply the inefficiencies", and he cautioned against expecting a rapid take-up of the product.

 

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