The increasing cost-competitiveness of LFP battery cells has made first life batteries more attractive than second life ones, Finland-based BESS solutions firm Cactos told Energy-Storage.news after a €26 million (US$28.5 million) fundraise.
They developed Cactos One, a unit that can store up to 100 kW/h of electricity. Like cactuses store and optimize water usage, so does Cactos'' unit, which makes efficient use of energy, bringing advantages to users – mostly building owners – and grid operators.
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Dubbed Cactos Spine, the platform is able to create an optimized matrix of battery units that offer clients including logistics company Logitri Oy, protection against electricity price volatility, level out local demand peaks, offer backup power, and where applicable, optimise the use of the property''s own electricity production.
Built in the startup''s factory in Muhos, Finland, Cactos offers two "Cactos One Energy Storages" — the first, the "Classic," which is made from spent Tesla batteries and has a capacity of 100 kWh and power of 45 kW per unit, and the second, the "Cactos One Cardo," which is built from a new lithium iron phosphate (LFP) batteries
One of them is Cactos–a developer of smart energy storage systems built from second-life Tesla EV batteries–which has raised over €26 million to expand its portfolio as it aspires to transform the country''s energy
One of them is Cactos–a developer of smart energy storage systems built from second-life Tesla EV batteries–which has raised over €26 million to expand its portfolio as it aspires to transform the country''s energy landscape. The investment was led by OP Finland Infrastructure LP and the Finnish Climate Fund, and forms part of Cactos
They developed Cactos One, a unit that can store up to 100 kW/h of electricity. Like cactuses store and optimize water usage, so does Cactos'' unit, which makes efficient use of energy, bringing advantages to
Built in the startup''s factory in Muhos, Finland, Cactos offers two "Cactos One Energy Storages" — the first, the "Classic," which is made from spent Tesla batteries and has a capacity of 100 kWh and power of 45 kW per
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Our product line includes two generations of battery energy storage systems: Cactos Two and Cactos One. We manufacture our products including LiFePo4 battery modules at our Kempele facility in Finland. Cactos units can be installed in parallel to meet your needs, enabling higher storage capacity and power output.
The models include the Cactos One Classic unit made from second-life Tesla EV batteries and the first-life lithium iron phosphate battery-based Cactos One Cardo. All units are automated by the Cactos Spine cloud system.
The Battery Monitor - 1 (BM1) is AMPS'' high precision power management device, intended for use in the DC negative. Installed correctly, the shunt will accurately measure discharge and charge at any given time. Cactus Navigation & Communication is a trading name of Cactus 020 Ltd Cactus 020 Ltd. Chandlers and Marine Equipment Shop
The BEP 720 Heavy Duty Battery Switch follows the successful release of the 701 switch in 1999. It ?ts into the same contour lock system as used on the battery distribution system. Cactus Navigation & Communication is a trading name of Cactus 020 Ltd Cactus 020 Ltd. Chandlers and Marine Equipment Shop. Registration No. 7844892 Unit 26
Dubbed Cactos Spine, the platform is able to create an optimized matrix of battery units that offer clients including logistics company Logitri Oy, protection against electricity price volatility, level out local demand
It is estimated that up to 25% of global storage capacity will be from ''behind the meter'' by 20303 which will include battery based solutions such as the Cactos system currently under development and testing.
The energy storage units with a capacity of 100 kWh will be built from recycled Tesla electric vehicle batteries, which Cactos procures from countries such as Norway and Sweden. With the technology developed by Cactos, recycled batteries can be used efficiently and safely in
In a time of heightened awareness of the need for energy security at local, national and international levels, battery energy storage systems, such as the Cactos One, offers a localised solution for businesses and consumers to ensure back-up of their electricity supply in the event of outages and interruptions due to unforeseen events, as well
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The increasing cost-competitiveness of LFP battery cells has made first life batteries more attractive than second life ones, Finland-based BESS solutions firm Cactos told Energy-Storage.news after a €26 million
The Faroe or Faeroe Islands (/ ˈ f ɛər oʊ / FAIR-oh), or simply the Faroes (Faroese: Føroyar, pronounced [ˈfœɹjaɹ] ⓘ; Danish: Færøerne [ˈfeɐ̯ˌøˀɐnə]), are an archipelago in the North Atlantic Ocean and an autonomous territory of the

Perhaps best known for its innovative reconditioning and use of spent Tesla EV batteries as source material for the company’s first market offer, Cactos now also offers fresh lithium iron phosphate batteries as part of its lineup.
Best known for its reconditioning and use of spent Tesla EV batteries as source material for its BESS systems, Cactos now has aspirations far larger. Cactos, a Helsinki-based battery energy storage systems (BESS) startup has raised over €26 million in equity capital as part of a larger €70 million investment project.
The €70 million will be invested in smart energy storage units over approximately two and a half years and with an expected operational period of approximately ten years. Cactos founder and CEO Oskari Jaakkola explains:
“After that, we came up with the idea of Cactos One, a 100-kilowatt-hour battery pack, with 50 kilowatts of charging and discharging power controlled through a cloud system. Our vision was to make it as easy and accessible as possible for our customers.
In December 2023 Cactos Fleet Finland LP reported owning 50 Cactos units, while the planned €70 million fund will see that number jump to over 1,000 units in the coming years if all goes according to plan.
Dubbed Cactos Spine, the platform is able to create an optimized matrix of battery units that offer clients including logistics company Logitri Oy, protection against electricity price volatility, level out local demand peaks, offer backup power, and where applicable, optimise the use of the property’s own electricity production.
The European energy storage market is booming with Germany leading residential adoption (+58% YoY) thanks to €500/kWh subsidies. Italy's new tax credits drive 5.2GWh commercial deployments, while UK grid-scale projects exceed 8GWh with 2-hour duration systems. Key selection criteria: German-certified safety (VDE-AR-E 2510), 10+ year warranties, and VPP readiness. Top-performing products include Sonnen's hybrid inverters (98% efficiency) and BYD's Blade Battery (12,000 cycles @80% DoD). For snowy regions like Scandinavia, consider Huawei's -30°C compatible systems. France mandates carbon footprint declarations - Sungrow's ISO-14067 certified solutions gain preference.
For European homeowners, 5-10kWh systems with 3-phase compatibility are ideal. Top picks: 1) Tesla Powerwall 3 (13.5kWh, 97% round-trip efficiency) for smart home integration; 2) LG Chem RESU Prime for compact urban installations; 3) SMA Sunny Boy Storage for retrofit projects. Critical features: EU-made battery cells (exempt from CBAM tariffs), dynamic tariff optimization (like Octopus Energy integration), and fire-safe LiFePO4 chemistry. Southern Europe demands 85%+ depth of discharge capability, while Nordic markets require -25°C operation. Always verify CEI 0-21 compliance for Italian grid connection and EnWG certification for German feed-in.