Vensum Power Raises €9M Series A to Cut Power Losses in EV Charging, Energy Storage and AI Data Centres
Vensum Power, a Finnish deeptech company that builds software-defined power conversion systems, has raised €9 million (about $10.4 million) in a Series A round. The round was co-led by Lifeline Ventures, Larsen & Toubro Group and Eviny Ventures. It brings the company’s total funding to €15.2 million.
The company announced the raise on November 6, 2026. The money will take Vensum Power from technology development to industrial-scale production, with mass production planned for 2027.
What Vensum Power does
Every time electricity changes form, some of it is lost as heat. Power flows from the grid as alternating current (AC), while batteries, EVs and computer chips run on direct current (DC) at different voltages. Each conversion step between them wastes a slice of energy.
Vensum Power builds power conversion systems designed to shrink those losses. Its approach is software-defined: instead of relying only on fixed hardware design, software controls how the converter behaves as conditions change.
That matters because real-world loads rarely sit still. EV chargers ramp up and down, batteries switch between charging and discharging, and AI workloads can swing sharply in seconds. Many conventional converters are most efficient at one operating point and lose efficiency as the load moves away from it.
Vensum Power says its converters stay highly efficient even when loads change rapidly. CEO Peter Nisula told Tech.eu that the company’s converters “operate consistently at extremely high efficiency” under those shifting conditions.
Target markets: EV charging, storage and DC microgrids first
Vensum Power will start its production rollout in three markets:
EV charging, where fast chargers convert large amounts of power and losses add directly to operating costs
Energy storage systems, where every conversion in and out of a battery reduces the energy that can be sold or used
DC microgrids, local networks that connect solar, batteries and loads on direct current with fewer conversion steps
These markets share a common need: moving large amounts of power through converters many times a day, under loads that rarely stay constant. Small efficiency gains at that scale add up to meaningful savings in energy and cost.
The AI data centre opportunity
After its first markets, Vensum Power plans to expand into AI data centres. This is where the company sees a growing problem.
AI computing is driving a sharp rise in data centre power demand. Many operators are now limited less by how many chips they can buy and more by how much power they can bring to a site. In that setting, every watt lost in conversion is a watt that cannot reach a server.
Nisula framed the issue as a shift in what matters most for data centres. Beyond how much electricity a site can secure, he said, the key question is now “how efficiently the used electricity actually reaches” the chips.
Vensum Power argues that more efficient conversion lets operators make better use of the power capacity they already have. For a data centre that is short on grid connections, that can mean running more computing within the same power budget.
From lab to factory
Nisula described the Series A as the point where Vensum Power moves from developing its technology to producing it at industrial scale.
That transition is often the hardest step for hardware startups. Building reliable products in volume requires manufacturing partners, supply chains, certification and field testing, not just a working design. The 2027 target for mass production gives the company roughly a year to put those pieces in place.
The company has not disclosed its expected production volumes, revenue or valuation, or how it will split the €9 million between manufacturing, hiring and product development.
Who is backing Vensum Power
The three co-leads bring different strengths to the round:
Lifeline Ventures is a Helsinki-based early-stage venture capital firm with a long record of backing Finnish technology companies.
Larsen & Toubro Group is a large Indian engineering and industrial group, giving Vensum Power a strategic backer with deep experience in energy and infrastructure.
Eviny Ventures is the venture arm of Norwegian energy company Eviny, bringing a perspective from power generation and grids.
Having an industrial group and an energy company among the leads suggests the investors see Vensum Power’s technology as relevant to large-scale energy infrastructure, not only to niche products.
The team behind the company
Vensum Power was founded in 2018 by Jyrki Penttonen and Mika Marjalaakso. Peter Nisula leads the company as CEO. With €15.2 million raised in total, the company has been building its technology for around eight years before reaching this production stage.
Why power conversion efficiency matters now
The energy transition is putting more power through converters than ever before. Electric vehicles, home and grid batteries, rooftop solar and data centres all rely on converting power between AC and DC and between voltages.
As those systems scale, conversion losses become a larger share of total energy use. Reducing them lowers costs for operators, eases pressure on grids and cuts wasted heat that must then be cooled away. For data centres in particular, less heat also means less energy spent on cooling.
This is why power electronics, once a quiet engineering niche, is drawing more investor attention. Companies that can deliver measurable efficiency gains at scale are positioned to benefit from growth in both clean energy and AI infrastructure.
What to watch next
Three milestones will show whether Vensum Power can deliver on its plan:
Mass production in 2027: hitting the target on time, with products that perform in the field as they do in testing.
First commercial customers: named deployments in EV charging, energy storage or microgrids would validate demand.
Data centre entry: a pilot with a data centre operator would test the company’s biggest growth story.
With fresh capital and backers from both venture and industry, Vensum Power now has the resources to move its technology out of development and into the infrastructure that powers vehicles, batteries and AI.
Key facts
Company: Vensum Power
Headquarters: Finland
Round: Series A
Amount: €9 million (about $10.4 million)
Lead investors: Lifeline Ventures, Larsen & Toubro Group, Eviny Ventures (co-leads)
Total funding: €15.2 million
Announced: November 6, 2026
Founded: 2018, by Jyrki Penttonen and Mika Marjalaakso
CEO: Peter Nisula
Mass production target: 2027