Cactos Battery Energy Storage Systems - Energy, But Better
Revolutionize the way you store and use energy
300+ installed battery energy storage systems
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Use energy more efficiently and support the grid. Cactos works in the most profitable way for you. Always.
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Why Cactos?
Shift consumption and save
Cactos charges up when electricity is cheap and releases it when prices spike. This helps you cut the extra costs caused by high-demand hours.
Cut your demand charges
When your local energy consumption peaks, demand charges rise. Cactos evens out those peaks by using stored energy, helping you save money.
Boost your peak power capacity
Need more power than your connection allows? Cactos lets you handle higher peak loads without the cost of upgrading your grid connection.
Make the most of your own energy
Don’t settle for selling your solar or wind energy at the wrong time. Cactos stores it so you can use it or sell it when it’s most profitable.
Stay powered during outages
Unpredictable outages? Not a problem. The Cactos Cardo model acts as your safety net, keeping everything running smoothly when the grid goes dark.
Participate in electricity markets
Cactos opens the door to reserve and wholesale markets, where you can support the electricity system and earn revenue, without lifting a finger. *
* Feature currently available in Finland. Contact us to learn more about your country's status.
Curious to learn more?
Let us show you how Cactos works and how it can transform your energy use. Book a remote demo and let’s talk.
Your smart battery storage, made in Finland
From advanced batteries to smart software, the Cactos system is designed and built in Finland. It works quietly in the background, optimizing your energy use without you having to do a thing.
Battery energy storage for commercial properties and grid-scale projects
Developed for businesses and grid-scale projects, Cactos energy storage systems improve energy efficiency, 24/7.
Discover our energy storage solutions
Who is Cactos for?
Logistics centers, charge point operators, farms, factories. Cactos is built to adapt to various businesses. We’re proud to serve customers of all sizes, from family businesses to enterprises.
EV charging
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Agriculture
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Real estate investment
Other commercial and public properties
Bloks: Turning challenges into savings
For Bloks, power outages were a costly problem. With a Cactos energy storage system, they keep operations running smoothly during blackouts while storing solar energy for future use, saving money in the process.
Our customers
"Cactos helps us in many ways. First and foremost, it saves us money – we generate solar energy with our own panels, which Cactos stores when the sun shines and makes available for use at night. If we had to rate our experience on a scale from zero to ten, we have no complaints: it's a solid ten."
Arto Manninen
CEO, Bloks Oy
"With Cactos, we can shift our electricity consumption – storing energy during cheap hours and discharging it into the taxis when prices are high."
Antti Lankila
IT Director, Menevä
Us in the news
Cactos builds energy storage systems with old Tesla batteries. It just raised $28.5 million with this 24-slide pitch deck.
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Tesla batteries repurposed for smart energy storage
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Helsinki-based startup Cactos secures over €26M for BESS investment
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Finnish startup Cactos raises over €26 million to double down on its battery energy storage system portfolio
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Finnish Cactos grabs €26 million to power up expansion of smart energy storage systems
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Suomalaisyhtiö tekee jopa vanhoista Teslan akuista sähkövarastoja: Keräsi yli 26 miljoonaa euroa
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Sustainability Takes Center Stage as EU GreenTech Funding Booms
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Suomalainen yritys tekee Teslan akuista sähkövarastoja, jotka säästävät rahaa ja suojaavat sähkökatkoksissa – Keräsi 2,5 miljoonaa rahoitusta
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Tesla EV battery packs repurposed into energy storage systems in Finland and California
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Finnish start-up is turning Tesla EV batteries into storage systems
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Breathing new life into spent Tesla EV batteries, Cactos raises €2.5 million to meet growing customer demand
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Finnish startup Cactos raises €2.5 million to tackle the energy crisis with second-life Tesla batteries
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Let’s power your future together
Want to see how Cactos can meet your needs, or request a quote? Get in touch today.