HYXi HALO Synergrid-approved: which variants are on the C10/26 list?
Last updated: 27 September 2026 · Synergrid list status: 21 September 2026 · By Team Multi-Solar, home batteries since 2022, Rotterdam
Yes, the HYXi HALO is Synergrid-approved. Since 24 July 2026, the complete system has been on the list C10/26: the AC base module, the 800 W version and every combination with one to five expansion modules, 24 references in total. All variants are homologated as plug & play devices. Below you can see which reference belongs to which configuration and what you need to register with your grid operator in Belgium.
Which HALO variants are on the list?
| Configuration | On the list | Since / reference | Power on the list |
|---|---|---|---|
| HALO AC base module (HYX-MS3000AC), 3 kWh | Yes | 24 July 2026, GLV253-10-0007 | 1,500 W |
| HALO AC + 1 to 5 expansion modules (HYX-MS3000AC-BP-1 to -BP-5), 6 to 18 kWh | Yes | 24 July 2026, GLV253-10-0008 to -0012 | 3,000 W |
| HALO AC 800 W version (HYX-MS3000AC-800), with or without expansion | Yes | 24 July 2026, GLV253-10-0001 to -0006 | 800 W |
| HALO PV (HYX-MS3000), with or without expansion | Yes | 24 July 2026, GLV253-10-0019 to -0024 | 1,500 W |
| HALO PV 800 W version (HYX-MS3000-800) | Yes | 24 July 2026, GLV253-10-0013 to -0018 | 800 W |
All entries: single-phase, firmware V1.0, power measurement via the CHINT IDW131 meter or the P1 port of the digital meter, marked "Plug&play". We supply the HYXi HALO AC version with a P1 smart meter dongle (P1-meter) and the separate 3 kWh HALO expansion module. The PV variant with a direct panel input is on the list, but is not part of our range.
Notably, the list states 1,500 W for the base module on its own and 3,000 W for the combination with expansion modules. So if you want the full power, you need at least one expansion module, plus a dedicated circuit in the electrical panel.
What is a Synergrid approval?
Synergrid is the federation of the Belgian grid operators (Fluvius, ORES, RESA, Sibelga). It manages technical regulation C10/11, which sets the requirements for everything that feeds electricity into the Belgian grid. Devices that meet those requirements receive a reference number and are added to list C10/26. That list is updated weekly; Synergrid recommends always consulting the online version.
Since 17 April 2025, plug & play devices may also be connected to an electrical installation in Belgium, provided they are on that list. With a plug-in home battery, the inverter is built into the device, so the entire system is on the list with its type code. For the HALO, HYXi had each configuration homologated separately: with zero, one, two, three, four or five expansion modules. That is why the HALO has 24 entries.
Why do you need this approval in Belgium?
A home battery that is not on the C10/26 list may not be connected to the grid in Belgium. Your grid operator can ask for the reference when you register or during an inspection, and refuse the connection if the model is missing. The approval tests grid behaviour: response to voltage and frequency, automatic disconnection in the event of a fault, power limiting. The list says nothing about the capacity or the lifespan of the cells.
The list does not apply in the Netherlands. There, it is about registering with your grid operator and the 800 W limit for the socket; see our article on the 800 W rule for plug-in home batteries.
What does this mean for registering with your grid operator?
You register the HALO with your own grid operator, stating the brand, type code and power. Use the type code that matches your configuration: HYX-MS3000AC for the base module only, HYX-MS3000AC-BP-2 for the base module with two expansion modules, and so on. If you expand later, the reference changes accordingly; pass that on.
The registration procedure and the power limits differ per region. Synergrid refers to your grid operator's website for this. Since 15 October 2025, the P1 port of the digital meter may be used for power management in small generation installations; for the HALO, this option is also stated on the list. You connect the supplied P1 smart meter dongle (P1-meter) to the P1 port of your digital meter. You can read how that works in our article on the P1 meter or CT clamp.
What if you are considering a different battery?
Not every plug-in home battery is on the list. From Marstek, the Venus E and the Venus C are on it, but the Venus A, Venus D, Venus E Mini, Venus Max and Venus X are not; read our article on the Synergrid approval of Marstek. If you want to start modularly in Belgium and expand later, the HALO is currently the system in our range that is on the list with all its expansions. If you want a single 5 kWh battery, the Marstek Venus E 3.0 is the alternative.
If in doubt, always search the list itself for the type code on the rating plate. Our product pages in the plug & play batteries collection state when a model is Synergrid-approved.
Which HALO configuration suits your situation?
You live in Belgium and want to get started today without an installer. Choose the 3 kWh base module. Plug it into an earthed socket, connect the P1 meter to the digital meter, and register it with your grid operator using reference GLV253-10-0007.
You have solar panels and export a lot to the grid. Start with the base module plus one or two expansion modules (6 or 9 kWh). On a dedicated circuit, the system charges at 3,000 W, which lets you capture the midday surplus well. An installer fits the dedicated circuit; we arrange installation via a quote.
You have a dynamic contract and no solar panels. The HALO charges during cheap hours and supplies power during expensive hours. Here too: 800 W on the socket, more on a dedicated circuit.
You want to start small and expand later. That is exactly what the system is designed for: from 3 to 18 kWh in steps of 3 kWh, and every intermediate step is on the list. Pass the new reference on to your grid operator when you expand.
You live in the Netherlands. The Synergrid list plays no role. Choose based on capacity and power; our article plug-in or fixed helps you choose.
Unsure about the right capacity or about registration? Request a no-obligation quote and we will look at your consumption, your connection and the configuration that suits it. You will find the entire HYXi range and the Marstek collection in the webshop.
Frequently asked questions
Since when has the HYXi HALO been Synergrid-approved?
The homologation date on the C10/26 list is 24 July 2026. All 24 references of the HALO and HALO PV were added on that date.
Is the HALO with expansion modules also on the list?
Yes. Every combination of the base module with one to five expansion modules has its own reference (GLV253-10-0008 to -0012 for the AC version). So you do not have to wait for a new homologation with every expansion.
Why is the base module on the list at 1,500 W and not at 3,000 W?
That is how HYXi had it homologated: the base module on its own for 1,500 W, the combination with expansion modules for 3,000 W. If you want to use the full power, install at least one expansion module and have a dedicated circuit fitted.
Can I simply plug the HALO into a socket in Belgium?
Yes, provided you register the reference with your grid operator. Via the socket, the battery works at a maximum of 800 W. For the procedure and the power limit in your region, check your grid operator's website.
Where can I check the list myself?
On synergrid.be under Homologation, Electricity, Decentralised generation units. There you will find the full list C10/26 (Excel) and the Plug&Play extract (pdf). Search for "HYXI" or for the type code of your device.
Sources
- Synergrid, List C10/26 of homologated decentralised generation units (Excel), last updated 21 September 2026, consulted 27 September 2026
- Synergrid, Plug&Play list, extract from C10/26, edition 18 August 2026 (pdf via the same page)
- Synergrid, technical regulation C10/11, amendment 2.2 (in force 17 April 2025) and amendment 2.3 (15 October 2025), summarised in the key data of the Plug&Play list
- HYXi, datasheet HYX-MS3000AC / HYX-MS3000B, version 1.5, 28 April 2026