Electricity

Finnish startup retrofitting old Tesla batteries for other energy storage uses

Finnish startup Cactos retrofitting old Tesla batteries other energy storage uses

Photo: Cactos

Published

December 1, 2022

Country

Author

Comments

comments icon

0

Share

Published:

December 1, 2022

Country:

Author

Comments:

comments icon

0

Share

Cactos from Finland gives alternative purposes to second-life electric vehicle batteries. Using its cloud-based software, the startup enables optimisation of energy consumption and helps stabilise the transmission grid.

Generally, EV batteries are replaced when their storage capacity drops to 70% after eight to ten years of use or more than 200,000 kilometres driven. However, they can still be used as storage for renewables before they are recycled. It is where a company called Cactos stepped in.

How it works

Based in Muhos in northern Finland, Cactos operates a fleet of distributed energy storage systems based on smart energy storage units and a cloud computing service. The units are made from used Tesla EV batteries. The Finnish company disassembles and converts them into 100 kWh energy storage units and guarantees its clients a lifetime of 10 years.

Additionally, using an algorithmic-based cloud computing service, Cactos wants to optimize energy consumption and ensure a consistent energy supply during demand peaks or blackouts. The company said its energy units could provide stability to the transmission grid as the units automatically discharge energy in case of a deficit and absorb energy if there is excess production.

Finnish startup retrofitting old Tesla batteries other energy storage uses

Storage units smoothing out temporary imbalances

After almost one year of operation, the Chief Executive Officer of Cactos, Oskari Jaakola, is satisfied. “Energy transition and temporal imbalance in supply and demand mean there is a huge need for demand response and different ways to store energy. Our target was to create an energy storage solution that is carefree for the user and easily accessible. I believe we have succeeded in doing that,” he pointed out.

The company’s current clients are primarily owners or tenants in buildings used in business sectors such as maintenance, industry, hospitality, or retail. Cactos intends to provide storage for locally produced green energy, such as from solar panels, to supply the buildings even when the sun is not shining.

Cactos raises EUR 2.5 million to expand production

Moreover, the company pointed out that the increasing number of electric vehicles creates new challenges for charging locations, like the significant energy consumption peaks from fast charging. The Finnish startup wants to help with its cloud computing service to enable temporary loads that are larger than the connection size would regularly allow.

Cactos offers energy storage units and its cloud computing services at a monthly price. The company has just raised EUR 2.5M in equity and debt to increase its production capacity. Cactos plans to more than double its factory size in early 2023, allowing for nearly a tenfold increase in output.

Comments (0)

Be the first one to comment on this article.

Enter Your Comment
Please wait... Please fill in the required fields. There seems to be an error, please refresh the page and try again. Your comment has been sent.

Related Articles

CJR Renewables 102 MW Urleasca wind farm Romania

CJR Renewables completes construction of 102 MW Urleasca wind farm in Romania

09 October 2025 - The Urleasca wind farm in Brăila county in eastern Romania is complete, contractor CJR Renewables said

slovenia coal phaseout coal mine velenje golob robert visit

Slovenia begins preparations for closure of Velenje coal mine

09 October 2025 - Slovenian Prime Minister Robert Golob visited the Velenje coal mine to present a draft law on its gradual closure

Metlen Karatzis Greece largest battery joint venture

Karatzis, Metlen to install Greece’s largest battery in joint venture

09 October 2025 - Metlen and Karatzis Group of Companies are establishing a joint venture for a standalone BESS of 330 MW and 790 MWh

world dnv energy transition energy transition outlook 2025

Policy changes in US will have marginal impact on global energy transition

09 October 2025 - AI energy use may seem alarming, but it is projected to stay below EV charging and the cooling of buildings, DNV calculated