Who owns Finland’s named batteries
56 owners named across the 77 batteries, as the owners themselves state it in their releases; where a fund owns a battery the fund is named and its manager noted. Fingrid publishes no ownership, so this is the owners’ own word and nothing more, and it covers the named fifth of Fingrid’s count only.
Neoen (100%)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Akkula Big Battery | Being built | Rauma | 62 | 231 | 2027 |
| Yllikkälä Power Reserve Two | Operating | Lappeenranta | 56 | 113 | 2025 H1 |
Nala Renewables
Ultimately IFM Investors (Nala's owner per its release of 8 Oct 2026; IFM agreed in April 2026 to buy Trafigura's half); IFM Investors (Nala's owner per the release of 8 Oct 2026), as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Nala Vuolijoki | Being built | Kajaani | 125 | 250 | · |
| Kärppiö (Nala Renewables) | Announced | Teuva | 100 | 200 | · |
| Kauhava (Nala Renewables) | Energised, commissioning | Kauhava | 50 | 100 | 2026 end |
Olana Energy Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Ristimäki (Olana Energy) | Being built | Pieksämäki | 30 | 34 | 2026 Q4 |
| Olana Selkiö | Operating | Pieksämäki | 10 | 12 | 2025 Q2 |
| Olana Siilinjärvi | Operating | Siilinjärvi | 10 | 12 | 2025 Q2 |
| Olana Gunnarsnäs | Operating | Parainen | 10 | 10 | 2026 Q3 |
| Olana Koski Tl | Operating | Koski Tl | 7 | 8 | 2026 Q3 |
| Olana Turku | Operating | Turku | 5 | 6 | 2025 Q1 |
Helen Ltd and Evli Renewable Energy Infrastructure Fund II
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Nurmijärvi (Helen and Evli) | Operating | Nurmijärvi | 40 | 80 | 2025-12 |
Joint venture of Ardian Clean Energy Evergreen Fund and Lappeenrannan Energia
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Mertaniemi | Operating | Lappeenranta | 38 | 43 | 2025-05-15 |
Alpiq
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Haapajärvi (Pysäysperä) | Being built | Haapajärvi | 125 | 250 | 2027 H1 |
| Valkeakoski (Alpiq) | Operating | Valkeakoski | 30 | 36 | 2025-10 |
Neoen
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Yllikkälä Power Reserve One | Operating | Lappeenranta | 30 | 30 | 2020-10 |
A fund managed by Taaleri Energia
Ultimately Taaleri Oyj (Taaleri Energia is part of the listed Taaleri group), as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Lempäälä BESS (Taaleri Energia fund) | Operating | Lempäälä | 30 | 36 | 2024-11-23 |
Joint venture of FRV and AMP Tank Finland Oy
Ultimately FRV is part of Jameel Energy (ESS News only), as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Simo, phase 1 | Operating | Simo | 30 | 60 | 2025-05 |
Nuveen Infrastructure (majority), Ilmatar (10%)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Ainola BESS (Piiparinmäki wind farm) | Operating | Pyhäntä | 30 | 41 | 2025-06 |
Helen (jointly owned; partner not named)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Lakiakangas wind farm storage (Helen, jointly owned) | Operating | · | 5 | 10 | by 2024-02 |
Rando Grid Oy, owned by JTel Oy and Rando Ventures Oy
Ultimately JTel Oy and Rando Ventures Oy, as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Rando Grid | Operating | Kuhmoinen | 5 | 10 | 2025-01 |
Callio-Hitura Solarpark Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Callio-Hitura hybrid storage, former Pyhäsalmi mine | Operating | Pyhäjärvi | 4 | 8 | 2026-05-01 |
Fortum
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Batcave (Järvenpää power plant) | Operating | Järvenpää | 2 | 1 | 2017-03-01 |
Merus Power
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Merus Power test storage, Lempäälä | Operating | Lempäälä | 1 | 1 | 2025-03-25 |
OX2
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kannisto wind farm BESS (OX2) | Being built | Halsua | 125 | 250 | 2028 |
| Korkeamaa wind farm BESS (OX2) | Being built | Soini | 110 | 220 | 2028 |
Enlight Renewable Energy Ltd
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kukonkylä | Announced | Sievi | 125 | · | 2028 H1 |
| Pyhäjoki (Enlight, from Usva Energia) | Announced | Pyhäjoki | 100 | 400 | · |
Owner not stated
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Sandås BESS (Fu-Gen) | Announced | · | 125 | · | · |
| Relletinsuo battery storage and substation | Announced | Siikajoki | 30 | · | · |
| Kyrö BESS (Fu-Gen) | Announced | · | 30 | · | · |
| Paarmasuontie energy storage, Raahe | Announced | Raahe | 1.9 | 4.2 | · |
Luxcara
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Tuisku | Being built | Keminmaa | 125 | · | 2027 summer |
Covenergo (majority) with Delta Capacity
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| AKKU One | Being built | Lapinlahti | 125 | 300 | 2027 Q4 |
Delta Capacity and Strioga Family Foundation
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kärppiö / Karppio (Delta Capacity) | Being built | Teuva | 125 | 300 | 2027 Q4 |
Neoen Renewables Finland Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Visulahti (Neoen) | Announced | Mikkeli | 120 | · | · |
Ilmatar (developer; later owner not stated)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Pahkakoski BESS | Announced | Ii | 50 | 100 | 2028 |
| Alvar BESS | Announced | Alajärvi | 25 | 50 | 2028 |
| Västervik–Riskula BESS | Announced | Kristiinankaupunki | 25 | 50 | 2028 |
| Ypyrinneva BESS | Announced | Kuortane | 12 | 24 | 2028 |
Prime Green Energy Infrastructure Fund II, managed by Prime Capital AG
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Teuva (Prime Capital, from Usva Energia) | Announced | Teuva | 100 | · | · |
FRV Nivala Oy (applicant)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Mehtäperä battery storage (FRV Nivala Oy) | Announced | Nivala | 100 | 400 | · |
re:cap global investors (FP Lux European Battery Storage fund)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Alapitkä battery park | Announced | Lapinlahti | 95 | 220 | 2027 |
Teollisuuden Voima Oyj (TVO)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Olkiluoto backup battery (TVO) | Announced | Eurajoki | 90 | · | 2022 |
Prime Capital AG renewable energy fund (Pyhäsalmi BESS Oy)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Pyhäsalmi BESS (SENS and Dovre) | Announced | Pyhäjärvi | 85 | 170 | · |
Winda Energy
Ultimately BHM Renewables (majority shareholder of Winda), as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Jämsä (Winda Energy) | Announced | Jämsä | 50 | 100 | · |
| Rautavaara (Winda Energy) | Being built | Rautavaara | 30 | 60 | 2026 |
WOOD & Company Renewables Sub-Fund
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Laukaa (WOOD & Company) | Being built | Laukaa | 45 | 90 | 2027 Q2 |
| Äänekoski (WOOD & Company) | Being built | Äänekoski | 30 | 60 | 2027 Q2 |
Ingrid Capacity and Locus Energy (SEB Nordic Energy portfolio company)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Nivala (Ingrid Capacity and Locus Energy) | Being built | Nivala | 70 | 140 | 2026 |
FRV with AMP Tank
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Simo, phase 2 | Being built | Simo | 70 | 140 | 2026 |
Fortum Power and Heat Oy (applicant)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Pälli battery storage (Fortum) | Announced | Utajärvi | 60 | · | · |
L&G NTR Clean Power (Europe) III Fund (Uusnivala Energy Storage Oy)
Ultimately NTR with Legal & General, as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Uusnivala BESS | Being built | Nivala | 55 | 110 | 2026 mid |
Aquila Clean Energy EMEA
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kotka (Aquila Clean Energy) | Being built | Kotka | 50 | 50 | 2025 |
Renewable Power Capital (RPC)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kalanti BESS | Being built | Uusikaupunki | 50 | 100 | 2026 summer |
Å Energi (majority), with Farvatn Capital and Eco-Stor AS; AMP Tank keeps a minority
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Isokangas (Eco Stor) | Being built | · | 50 | 50 | 2026 |
Exilion
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kuortti (Exilion) | Announced | Mäntyharju | 30 | 66 | 2026 |
| Varevaara wind farm BESS (Exilion) | Announced | Tervola | 20 | 41 | 2027 autumn |
Ingrid Capacity with Mirova (partnership)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Pedersöre (Ingrid Capacity) | Announced | Pedersöre | 45 | 90 | · |
Icecreek Energy II Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Icecreek Energy II portfolio (five sites, western Finland) | Announced | · | 34 | 89 | 2027 |
UB Renewable Energy Fund (significant majority, bought from AmpTank Finland Oy), part of United Bankers
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kellarijanka (UB Renewable Energy Fund) | Announced | Kemijärvi | 30 | 60 | 2025 late |
Skip Wind 5 Oy
Ultimately Ardian Clean Energy Evergreen Fund, as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Riihimäki, Kaunola (Ardian) | Announced | Riihimäki | 30 | 30 | 2026 spring |
Neve Oy
Ultimately City of Rovaniemi, as the sources state it.
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Rovaniemi (Neve) | Announced | Rovaniemi | 30 | 80 | 2026 end |
wpd Söderskogen Vindpark Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Söderskogen wind farm BESS (wpd) | Announced | Vöyri | 30 | 60 | 2027 summer |
Oulun Energia
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Toppila (Oulun Energia) | Being built | Oulu | 20 | · | 2026 |
MW Storage AG
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Mäntsälä (MW Storage) | Announced | Mäntsälä | 20 | 20 | · |
Downing
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Konttisuo wind farm BESS (Downing) | Announced | · | 20 | · | · |
EPV Energy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Teuva wind farm battery (EPV Energy) | Being built | Teuva | 12 | 12 | 2023 spring |
Enertia Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Forssa (Enertia) | Announced | Forssa | 10 | 10 | 2025 end |
Fu-Gen Energia Oy (lease to pass to Perkiönmäen Energiavarasto Oy)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Perkiönmäen Energiavarasto | Announced | Kemijärvi | 10 | · | · |
Oy Herrfors Ab
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Herrfors storage | Status not stated | · | 7 | · | · |
Savon Voima Oy
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Juankoski (Savon Voima) | Announced | Kuopio | 5 | 10 | 2027 early |
Usva Energia (own project)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Kouvola (Usva Energia) | Announced | Kouvola | 5 | · | · |
NWJ FIN 2 Oy (applicant)
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| NW JBox container battery, Raahe (Kivipelto, Romuperäntie) | Announced | Raahe | 1.2 | 2.9 | · |
| NW JBox container battery, Raahe (Järvelä I, Mutalantie 97) | Announced | Raahe | 1.2 | 2.9 | · |
Sallila Energia
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Sallila Energia storage | Status not stated | · | 1.7 | · | · |
Helen
| Battery | Status | Municipality | MW | MWh | Owner’s date |
|---|---|---|---|---|---|
| Lohja solar park storage (Helen) | Being built | Lohja | 0 | · | · |
Source: fi/hand/batteries.csv, the owner and ultimate owner columns, each with its web address on the battery’s page. Where a company register entry was found the business ID is on the battery’s page.