The End of Dutch Net Metering Calls for a Better Home Battery

Last month, on a sunny morning, I FaceTimed one of my old friends who now lives in Utrecht. Through the camera, he showed me around his home. From his rooftop, I saw a row of hardworking solar panels making the most of every ray of sunlight. Yet he sounded very frustrated.
“See those solar babies? We originally bought them to take advantage of free sunlight, but when they produce the most electricity, nobody is home," he said. “while at night when the whole family actually uses the most energy, we have to buy grid electricity at a much higher price.”
“What's worse, with the net metering (salderingsregeling) ending in 2027, I can't offset my bill by sending back electricity to the grid and I may still need to pay a maintenance fee (terugleverkosten). All I can do is watch all that free electricity slip away."
It is becoming a common frustration across the Netherlands.
Many Dutch homes have already adopted solar panels and now they have to find a way to store those energy generated as policies change. More attention is turning to home batteries, but my friend still had one major concern like many other design-conscious homeowners.
“The technology sounds great,” he said. “I just don’t know where I’m supposed to put such a large, industrial-looking box.”
He was right. There is no shortage of powerful batteries on the market, but it's rare to find one that delivers enough energy without looking large and bulky. As a result, most home batteries are hidden away in garages, basements or storage rooms.
Wouldn’t it be great to have a home battery that is refined and modern? One that fits seamlessly into Dutch narrow hallway or compact living room, serves as the heart of home energy system while becoming part of the interior?
That was one of the central questions we kept asking ourselves while building the SAMDUO Nex E6000.

Inspired by a Classic: The Story Behind the Design

It was not easy to accomplish what we envisioned. To be completely honest, the first version of the Nex E6000 looked very different.
It was rectangular, heavy, and somewhat rugged, more like industrial equipment than something designed for home. It worked, but we weren't happy about it.
During one particularly long and difficult design meeting, we were studying prototype drawings when someone noticed a remote resemblance. The proportions were surprisingly similar to those of a classic smartphone: the iPhone.
That observation changed the direction of the entire design. To create the best possible experience for European homes, we got rid of the original look and kept the central element of that design language: a pure black front panel, a restrained metal frame and an overall appearance stripped of unnecessary details.
The result was more than a visual update. It was our first real step towards reimagining the home battery as a thoughtfully designed part of the home.

Why We Spent Three Months Perfecting One Panel

To create the clean, glass-like depth we wanted, we began a long search for the right front-panel material.
Our first choice was black acrylic. From a manufacturing perspective, it is light, durable and relatively easy to shape. When the first samples arrived, the result already seemed more than acceptable.
Then we tested it in a typical Dutch townhouse with afternoon sunlight pouring through wide-open windows. As someone walked past it, we suddenly noticed a slight imperfection of their reflections on the acrylic panel.
That led us to reconsider the choice of acrylic. We identified three issues we were not willing to compromise on:
  • The uncertainty of international transport: The unit may spend weeks inside a shipping container, where temperatures can become extremely high. Acrylic can deform slightly under those conditions, which is unacceptable for us and our customers.
  • The test of time: A home battery should remain part of a household for ten years or longer. Over time, acrylic may age, discolor or lose its original shape.
  • The limits of the material: When we placed acrylic next to high-strength glass, the difference was immediately visible. Glass offered a flatter, deeper and more refined surface. It was far better suited to preserving its appearance over many years.
We wanted a material that could become part of everyday life, still looking right after more than a decade.
So we upgraded the panel to high-strength tempered glass, and the character of the entire product changed. The clean, deep surface gave Nex E6000 a calmer presence within the room.

How We Made a Home Battery Just 11.9cm Deep

Anyone who has lived in a Dutch townhouse knows how narrow the hallway can be. Sometimes, two people can barely pass each other. In a space like that, every centimeter matters.
That is why the Nex E6000 is only 11.9 centimeters deep. It can fit behind a door, sit neatly between a cupboard and a wall, or be mounted directly in a hallway without taking away valuable walking space.
Reaching that number required constant prototype upgrades. At one point, an entire corner of our laboratory was filled with different versions, each created to push the design a little further.
Fitting a home battery—one capable of supporting a household’s evening electricity use—into a body roughly as deep as a thick dictionary is not simple. Every millimeter removed reduces the space available for internal wiring and components.
Our engineering team selected more expensive but highly reliable copper busbar connectors that delivers maximum electrical conductivity with minimal heat generation, ensuring high-power systems stay safe and highly efficient inside battery packs. They are thinner, structurally stronger and more efficient at conducting electricity.
The terminals were also redesigned to take up less room. Even the circuit board was reorganized like a miniature city, with every component carefully positioned and every electrical path made as direct as possible.
In the end, we turned a piece of energy equipment into a quiet member of the household. Thanks to its fanless internal structure, the Nex E6000 operates at around 25 dB, about as quiet as a soft breathing at night.
After a while, you may almost forget it is there. Children can run past without it getting in the way, while the unit sits quietly against the wall as though it has always belonged there.

A Quieter Kind of Home Battery

Many brands add large colored displays, filling them with figures, graphs and status updates. We took a different approach.
Dutch winters are long, and darkness can arrive as early as four o’clock in the afternoon. The last thing a warm hallway needs is a bright screen disturbing the entire atmosphere.
The Nex E6000 therefore has small indicator lights with soft colors and carefully controlled brightness, just to let users know it's working, nothing more, nothing less.
If you want to stay on top of detailed data, check the SAMDUO app to see how much electricity you stored today and how much you may have saved. The complex data stays on your phone, leaving your home calm, clean and uncluttered.

Look and Safety, You Can Have It All

For any home battery, safety is the baseline and we've made commitments from three different levels:
  1. Built-in safety from battery cells
The Nex E6000 uses 314 Ah cells from global Tier 1 providers, combining high energy density with strong safety margins. The cells have undergone the Nail Penetration Test, in which a steel nail is driven through the center of the cell. During testing, the cell did not produce smoke or catch fire, demonstrating the level of safety required for use in a home environment.
  1. A battery management system (BMS) that never stops working
The internal BMS continuously monitors the temperature, voltage and condition of cells. The battery is designed for more than 10,000 charging cycles and a service life of approximately 15 years as well as a 10-year warranty. These represent the level of confidence we believe a household product should provide.
  1. An integrated unibody design with mandatory wall mounting
The Nex E6000 uses a fully passive cooling system without external inverter or moving fan, reducing the number of potential mechanical failure points. It is also a design that must be secured to the wall using the supplied wall bracket under safety instructions. Families with children or pets will understand why this matters.
Safety and good design should not be optional extras. Both should come as standard.

The End of Net Metering Is Just the Beginning

Creating a home battery that looks less like an equipment turned out to be far more difficult than we expected. Every millimeter we removed, every material we changed and every screen we decided not to include led to long discussions within the team.
However, the feedback we got from our Amsterdam Product Reveal event on June 19th reassured us that all that effort had been worthwhile.
When you return home in the evening, the Nex E6000 makes your heart smile. Its proportions, materials and quiet presence can make it something you genuinely enjoy seeing in your home. During the day, it stores the energy generated; and when night falls, the small, softly glowing indicator lights let you know that it is still working quietly for you and your family.
On 1 January 2027, the Dutch salderingsregeling is expected to end. Households with solar panels will then face a practical choice: continue sending surplus solar energy back to the grid for relatively low compensation, potentially while paying maintenance fee, or install a home battery and keep more of that energy for use in the evening.

The SAMDUO Nex E6000 was created to help make the second option possible.


 

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