Renewable Energy Magazine
Summary
Polar Night Energy and the Finnish district heating company, Loviisan Lämpö, have entered into an agreement to build an industrial-scale Sand Battery in Pornainen for Loviisan Lämpö’s district heating network. The heating power of the new Sand Battery is 1 MW and it can store up to 100 MWh of thermal energy, making it about ten times larger than the Sand Battery in operation in Kankaanpää since 2022.
The purpose of the Sand Battery is to reduce carbon dioxide emissions of the district heating production in the Pornainen municipality and introduce a new flexible heat production technology.
"Loviisan Lämpö is moving towards more environmentally friendly energy production. With the Sand Battery, we can significantly reduce energy produced by combustion and completely eliminate the use of oil," says Mikko Paajanen, CEO of Loviisan Lämpö.
The impact of the investment on total emissions is approximately 160 tons of carbon dioxide equivalent per year, translating to nearly a 70% reduction in emissions from the district heating network of Pornainen. In addition to eliminating the usage of oil, the combustion of woodchips is expected to decrease by around 60%.
The municipality of Pornainen is enthusiastic about the new heating method, aligning with its goal of "Towards a Carbon-Neutral Pornainen." Many of the municipality's own buildings, including the Comprehensive School, town hall, and library, rely on district heating.
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