<
https://reneweconomy.com.au/new-worlds-largest-sand-battery-to-double-the-size-of-current-record-holder/>
"Only three months after inaugurating the world’s largest ‘sand battery’, a
large-scale and high-temperature thermal energy storage system, Finnish company
Polar Night Energy has agreed to build an even larger battery to supply
district heating to the village of Vääksy.
Polar Night Energy announced this week that it would partner with Finnish
renewable energy company Lahti Energia on the construction of an
industrial-scale sand battery which will have a heating power of 2 megawatts
(MW) and storage capacity of 250 megawatt-hours (MWh).
Sand batteries made by Polar Night Energy use sand or similar materials as a
storage medium and can be used to provide hot water for district heating and
other heating systems, hot air for space heating and other industrial
processes, and steam.
Polar Night Energy also hopes to soon be able to use its sand battery
technology to convert stored energy back into electricity.
Polar Night Energy’s sand battery stores energy in sand as heat, acting as a
high-power and high-capacity reservoir for excess renewable energy.
According to Polar Night Energy, sand batteries serve three primary functions –
storing excess renewable energy, participating in reserve markets to balance
the frequency of the grid, and producing heat and power without combustion.
The sand battery will provide thermal energy storage for Lahti Energia’s
district heating network in the Finnish village of Vääksy.
Once completed and operational, the sand battery will cut fossil-based
emissions in the heating network by around 60 per cent each year thanks to an
approximately 80 per cent reduction in natural gas usage and a reduction in
wood chip consumption."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
