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Simojoki has been quietly building a battery storage facility that could become the largest in the Nordic countries when completed. Amp Tank is building a giant battery on the side of the Simojoki substation in Fingrid.
– The head of Fingrid’s grid services department said the battery capacity is about 100 megawatts Petri Paavianen.
Simon’s giant battery will have a capacity of 1.4 megawatts and will surpass the 86.4 megawatt battery under construction in Yllikkälä, Lappeenranta. Neoen, which is building the battery, said last winter that the battery in Yllikkälä would be the largest in the Nordic countries.
Amp Tank also plans to build large batteries in Kemijärvi and Ii. In Kemijärvi, electricity storage is coming to the conversion station in Kellarijängä. The battery in Isokanka will be connected to the Aurora Line transmission line currently under construction.
Amp Tank has not yet revealed the prices of its northern giant batteries to the public, but they are projects worth tens of millions of euros.
As a comparison, you can take a recent deal by Merus Power: the company recently announced that it will deliver a 30 MW battery to Valkeakoski for €20 million.
If there is any hope, it would be best to build these batteries in northern Finland.
Giant battery support The power grid keeps production and consumption in balance at all times. In the future, when large amounts of weather-dependent wind and solar power are added to the grid, changes in electricity production will be faster and more drastic than before.
Fingrid pays for balancing the grid on the reserve market.
If there is hope, it would be best to build these batteries in northern Finland, where there is an oversupply of electricity, Parvinen said.
Most electricity is consumed in southern Finland. A lot of electricity is transported there from the west coast and the north, especially when the wind is strong. For example, a lot of district heating in the future will be produced with electric boilers. They charge when the wind drives down electricity prices.
– describes Parvinen, and then the power is sent to the south via the Red Line.
When batteries are built in the north, they can also be charged by wind power. In this way, wind energy can be better utilized and electricity can be distributed more evenly in the main grid. Fingrid does not decide where the batteries are built, but the operator will choose where to place them based on market conditions.
The battery site in Marinpera was quiet for a week as authorities and developers were still figuring out how far apart the battery containers could be placed.
Photo: Henripekka Kallio
Giant battery development The pace is very fast now. The largest storage facility in the Nordic countries was last built in Simo five years ago. The former Tuuliwatt was built with a storage capacity of 6 MW. The size of the batteries has therefore increased tenfold in a few years.
The size of the batteries can be easily adjusted because they are modularly built into the container. When you want more power storage, just put more battery containers together.
Simon’s site was quiet this week, with work suspended for a week due to fire safety talks with authorities. It’s about how close the containers were placed.
– Simon City Building Inspector and Environmental Secretary said this is a new thing and there are no actual regulations yet, nor established practices and interpretations. Sampo Makla.
The giant battery will be built a few kilometers from Exilion’s 70-hectare solar park, where panel installation is about to begin. The Simojoki power station looms in the middle of the forest in the upper right corner of the image, in front of the wind turbines.
Photo: Solarigo Systems oy
In the Finnish power grid Currently there is only about 200 megawatts of battery capacity, but Fingrid believes that number will increase rapidly.
– We developed four scenarios that would see battery capacity increase by 1,000-4,000 MW by 2035, said senior experts at Fingrid Risto Cusi.
Fingrid’s Parviainen said investment decisions for around 10-20 large-scale batteries have already been made, but more than a hundred projects are in the planning stages.
Future growth will depend largely on what business opportunities the pure merchant electricity market presents for batteries. In this case, batteries would make money not by balancing the main grid but by buying power from the market when it is cheap and selling it when prices rise.
Energy producers and large consumers may also build batteries in the future to balance their own operations.
– The battery is actually very flexible. One corner of a large battery can be sold for one purpose, while the other corners can be used for something else. Risto Kuusi of Fingrid said it can be used in many ways.
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Quick Adjustment
In the story The size of batteries is compared in megawatts (MW), a unit of power. It tells us how much power a battery can deliver to the grid at one time.
Battery The price depends largely on how much electricity they can store. If the battery has a large storage capacity, it can provide full power for longer. Storage capacity is measured in megawatt-hours (MWh).
Battery Can be used to quickly balance the network. For example, the pumped hydropower plant planned for Lake Kemijärvi will act as a long-term control force.
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