MGA moving to scale up thermal energy storage solution

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MGA Thermal said the new funding injection provides a foundation for the next phase of the company’s growth, facilitating the commissioning of an automated production line being built at the company’s commercial manufacturing facility at Tomago in the New South Wales Hunter region and accelerating operations well into 2024.

MGA Chief Executive Office Erich Kisi said with the new production line – which will be capable of manufacturing more than 1 MWh of MGA Blocks every day – fast approaching completion, the latest round of investment will enable the company to strategically expand its commercial division and invest in engineering and implementation.

“With the imminent completion of our production line, we’re on track to produce 1,000 blocks per day which can then be assembled into 24/7 renewable energy storage,” he said.

The company is commercialising a ‘miscibility gap alloy’ approach to thermal energy storage, storing heat in blocks made largely from aluminium and graphite and dispatching it to generate electricity.

Each MGA Thermal block weighs about 6 kgs and can store approximately 1 kWh of energy,

Image: MGA Thermal

MGA’s patented thermal energy storage blocks, about the size of a large house brick, consist of small alloy particles embedded within graphite-based blocks enclosed in a fully insulated system. Once heated the alloy particles can store heat for days with minimal energy loss. Heat exchangers are used to absorb heat from the blocks, with the heated gas or fluid suitable for industrial heat applications or to drive a steam turbine to generate electricity.

The company is in the final stages of commissioning a demonstration unit at its Tomago base that it said will provide a tangible example of the thermal energy storage system in action and substantiate its scalability for potential customers and partners.

MGA said the demonstration unit will include modular blocks stacked into large assemblies within MGA-designed thermal energy storage (TES) systems.

“These TES systems are able to store millions of kilowatt hours of energy in a cheaper and longer-lasting way compared to other dispatchable solutions,” the company said. “A stack of 3,700 blocks in our demonstration unit, about the size of a shipping container, stores enough energy to power more than 135 homes for 24 hours.”

MGA Thermal CEO Erich Kisi, left, and Deputy CEO and CCO Mark Croudace.

Image: MGA Thermal

Mark Croudace, MGA deputy CEO and chief commercial officer, said there is no shortage of demand for the company’s technology.

“Renewable energy sources come with their limitations, especially when the sun doesn’t shine and the wind doesn’t blow,” he said. “Plugging this gap is the reason we exist. MGA Technology is perfectly aligned to generate 24/7 clean steam for harder-to-abate industrial sectors, a rapidly growing very large market domestically and globally.”

The latest funding round attracted support from existing investors including Main Sequence, Varley Holdings, Melt Ventures and New Zealand’s Climate Venture Capital Fund while Understorey Ventures and Australian advisory firm Pollination Group have signed on as new investors.

Pollination CEO Martijn Wilder said MGA’s technology has enormous potential to support the uptake of clean energy in Australia.

“The energy transition for the country’s heavy industry to clean energy is a huge challenge and one that requires us to rethink the way we store energy,” he said. “MGA Thermal provides on-demand zero carbon heat which can decarbonise many industrial uses as well as provide clean electricity generation.”

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