The Viinamaki Wind Farm – Battery Energy Storage System is a 5,600kW energy storage project located in Ii, Northern Ostrobothnia, Finland. The rated storage capacity of the project is 6,600kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2019 and will be commissioned in 2021.

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.


The Viinamaki Wind Farm – Battery Energy Storage System is being developed by Tuuliwatti. The project is owned by Tuuliwatti (100%).

The key applications of the project are frequency regulation, renewable energy integaration and backup and black start capabilities.

Contractors involved

Tuuliwatti is the owner. Tuuliwatti is the developer. Saft Groupe is the technology provider for the project.

Additional information

The project is among the first of its size to combine the very rapid load-following features of wind farms and batteries to support the management of the power network, enabling the power output to be adjusted in the blink of an eye. The battery will be the size of six containers with a capacity of 6 MW.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.