Technical FAQs 4

When will the Finnish energy storage system be completed?

When completed, this energy storage system of 30MW/30MWh will strengthen the operational capacity of the Finnish power grid. The energy storage system is planned to be completed during spring 2026.

What is the storage capacity of water tank thermal energy storage in Finland?

Water TTESs found in Finland are listed in Table 7. The total storage capacity of the TTES in operation is about 11.4 GWh, and the storage capacity of the TTES under planning is about 4.2 GWh. Table 7. Water tank thermal energy storages in Finland. The Pori TTES will be used for both heat and cold storage.

Which energy storage technologies are being commissioned in Finland?

Currently, utility-scale energy storage technologies that have been commissioned in Finland are limited to BESS (lithium-ion batteries) and TES, mainly TTES and Cavern Thermal Energy Storages (CTES) connected to DH systems.

Why is Ardian building a new energy storage system in Finland?

This is the second energy storage system that Ardian is building in Finland as part of the Ardian Clean Energy Evergreen Fund. “ Our goal is to lead the way in the transformation of the Nordic energy system towards sustainable development.

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