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

Open call for green hydrogen combined heat and power pilot project in Western Macedonia

Open call for green hydrogen high-efficiency CHP pilot plant in northern Greece

04 July 2025 - The Greek government has opened a call for a pilot CHP unit in Western Macedonia that would run on green hydrogen

Foreign renewable energy investors remain committed to Romania as large plants coming online

Foreign renewable energy investors remain committed to Romania as large plants coming online

04 July 2025 - Renewable energy companies from abroad aren't intimidated by negative power prices in Romania, especially with the BESS segment accelerating

projects euros modernisation fund celan energy

EU’s Modernisation Fund disburses EUR 3.66 billion for clean energy projects in nine countries

04 July 2025 - Focusing on renewables, grids, storage, and energy efficiency, the funds will support projects in Croatia, Slovenia, Greece, and Romania.

sostanj coal fired plant unit 6

Slovenia’s sole coal-fired power plant Šoštanj to keep main unit offline until fall

04 July 2025 - The 600 MW unit at Šoštanj will not be restarted until the end of September, when demand for heat is set to rise.