NOX Energy Raises €3 Million to Scale Home Energy Flexibility

Belgian start-up NOX Energy has raised €3 million in seed funding to expand its platform for connecting household energy devices such as heat pumps, batteries, solar systems and electric vehicles to energy markets. The company has already connected more than 10,000 devices and signed customers including Eneco and Frank Energie, and plans to use the funding to expand beyond Belgium and the Netherlands into additional European markets.

 

NOX Is Building Infrastructure Between Homes and Energy Markets

 

NOX Energy’s platform allows flexible household devices to adjust when and how they use or supply electricity based on grid conditions, weather and power prices. Instead of requiring consumers to install new hardware or adopt another app, the technology is designed to work within the existing apps of energy suppliers and device manufacturers.

The company then aggregates the flexibility available across thousands of homes and connects it to the energy market. For energy suppliers and device manufacturers, that creates a way to manage distributed energy assets as a coordinated resource rather than as isolated household systems, while consumers can potentially benefit through lower electricity costs.

 

Read more: BNZ Selects Sitetracker to Manage 2.7 GW Renewable Portfolio

 

Europe’s Renewable Growth Is Increasing the Need for Flexibility

 

NOX is entering a market where the share of variable renewable power is already high. Wind and solar supplied around 30% of EU electricity in 2025, increasing the need for ways to balance supply and demand when generation changes with weather conditions.

Home batteries, heat pumps and electric vehicles can all provide some of that flexibility if their charging or operating schedules can shift without affecting the user. NOX’s model is based on making those adjustments automatically and linking them to energy-market signals, effectively turning distributed consumer devices into part of the wider grid-balancing system.

 

Embedding Flexibility Into Existing Apps Is Central to the Model

 

A major part of NOX Energy’s strategy is to avoid building a separate consumer-facing platform. The company instead wants its optimisation tools to sit inside the apps people already use from their energy suppliers or device manufacturers.

That approach could reduce one of the barriers to residential energy management: asking consumers to change behaviour or adopt another digital service. If the optimisation can happen in the background, device flexibility becomes part of the existing customer experience rather than a separate product.

 

Explore OneStop ESG Marketplace: Grid, utilities & demand management

 

The €3 Million Round Will Fund European Expansion

 

The seed round was co-led by Rise Proptech and Volve Capital, with participation from Seeder Fund, Uneti Ventures, Fair Capital Impact Fund and 100in. NOX Energy says the funding will support expansion into new European markets and deeper integration with manufacturers.

The company was founded two years ago by Axelle Moortgat, CEO, and Louis Clermont, COO, and has grown to a team of 13. Its next challenge will be scaling from 10,000 connected devices to a much larger base while proving that aggregated household flexibility can deliver consistent value to both energy-market participants and consumers.

 

Source: NOX Energy