Three-Phase vs Single-Phase: Which Batería doméstica Suits Your Connection?

Your connection determines your choice

Whether you're looking for a plug-and-play system or a complete high-voltage installation — the type of your electrical connection is the starting point. In los Países Bajos, approximately 70% of homes have a monofásico connection (25A or 35A). Obra nueva homes and larger detached houses increasingly have a trifásico connection (3x25A or 3x35A).

The distinction matters: a trifásico system on a monofásico connection won't work. And a monofásico inversor on a trifásico connection only utilises one third of the grid capacity. In this article, we explain the difference and help you make the right choice.

The difference explained

Monofásico connection

A monofásico connection has one active power conductor (phase) and a neutral conductor. The maximum simultaneous power is limited to 25A × 230V = 5,750 W (or 35A × 230V = 8,050 W). Most homes in los Países Bajos fall into this category. Plug-and-play systems always operate on monofásico.

Trifásico connection

A trifásico connection has three active phases and distributes power across three circuits. The maximum power is 3 × 25A × 230V = 17,250 W. This is ideal for hogares with a bomba de calor, large cargador de VE (11-22 kW) or high total consumption. Obra nueva homes receive a trifásico connection as standard.

Comparison table: monofásico vs trifásico systems

The overview below helps you quickly determine which type of system suits your connection and situation:

Battery systems by connection type

The choice of battery system is closely linked to your connection type and your inversor. Here are the most popular combinations:

Best choices for monofásico

For a monofásico connection, plug-and-play systems and smaller hybrid inversors are the logical choice. The most requested models are:

• Anker SOLIX Solarbank 2 Pro (4.8 kWh): plug & play, no installer needed, ideal for monofásico
• Anker SOLIX X1 Batería doméstica (5 kWh): hybrid inversor included, monofásico up to 6 kW
• EcoFlow Power Ocean (5 kWh): modular system, suitable for monofásico hybrid setup

Best choices for trifásico

For a trifásico connection, you need a trifásico hybrid inversor. This distributes power evenly across all three phases, which is essential for a stable system with high simultaneous consumption. Popular options include:

• Huawei SUN2000 + LUNA 2000 (10-15 kWh): the most requested trifásico combination for larger homes
• Anker SOLIX X1 (10-20 kWh, trifásico version): modular, ampliable, EPS support
• Dyness Tower T10 (10.24 kWh): compatible with multiple trifásico inversors

How to check your connection type?

Your connection type is listed on your cuadro eléctrico report (request via Mijnnetbeheerder.nl) or is visible from the number of phase fuses in your cuadro eléctrico. One fuse = monofásico. Three identical fuses behind a main fuse = trifásico. Unsure? A instalador certificado can determine it in 5 minutes.

Choosing with a future trifásico upgrade in mind

Currently on monofásico but considering a trifásico upgrade in the future (e.g. when purchasing a bomba de calor or large cargador de VE)? Then opt for a trifásico compatible battery that also works on monofásico, so you can easily upgrade later without replacing the battery.

Conclusion: seek expert advice

The choice between monofásico and trifásico is decisive for the entire configuration of your sistema de batería doméstica. A wrong choice leads to underutilisation or technical incompatibility. Our advisers assess your cuadro eléctrico free of charge and provide tailored advice.

Request a free connection check or browse our range of monofásico and trifásico battery systems.