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Natural gas and wood chips, > "The installation will supply heat to the Vääksy district heating network and is expected to lower fossil-based emissions by appr
by perihelions 11mo ago
Natural gas and wood chips,
> "The installation will supply heat to the Vääksy district heating network and is expected to lower fossil-based emissions by approximately 60% annually, primarily through an estimated 80% reduction in natural gas consumption and reduced reliance on wood chips."
https://www.pv-magazine.com/2025/11/25/finlands-polar-night-to-build-250-mwh-sand-battery-for-district-heating-provider/ https://www.pv-magazine.com/2025/11/25/finlands-polar-night-...
- jonners00 11mo agoThose are the energy sources they're replacing with this tech - according to <https://reneweconomy.com.au/new-worlds-largest-sand-battery-to-double-the-size-of-current-record-holder/ https://reneweconomy.com.au/new-worlds-largest-sand-battery-...> it's surplus energy from renewables that will 'charge' the battery (so likely wind, hydro and solar that is produced but surplus to the grid's requirements)