Why Wallbox’s 3P Optimization Gives You More Solar, Without The Effort

4 min read

Across Europe, more households are investing in electric vehicles and solar energy – a natural pairing for cleaner, smarter living. But even as adoption grows, many homes still struggle to make the most of their solar setup when it comes to EV charging.

Wallbox’s new 3P Solar Optimization is designed to change that.

Built for homes with three-phase electrical installations, this smart feature helps you use more of your solar energy to charge your EV, even when conditions aren’t perfect. No upgrades, no manual switching – just intelligent charging that works seamlessly in the background.

The Solar Charging Challenge in 3-Phase Homes

Three-phase installations are standard in many European households, enabling faster EV charging speeds (up to 22 kW with Wallbox Pulsar Max). But when it comes to solar integration, there’s a challenge:

To activate solar charging in full three-phase mode, your home must generate a high level of solar surplus – something that’s often difficult during winter months, cloudy days, or in homes with smaller panel arrays.

That means a lot of clean energy goes unused, and your EV charger falls back on grid power more often than it needs to.

Wallbox 3P Optimization: Smarter Charging, Automatically

With our 3P Optimization¹, Wallbox chargers dynamically adapt to your solar production in real time.

When your charger detects that solar surplus is below the threshold required for 3-phase charging, it automatically switches to 1-phase mode – allowing your EV to charge with lower amounts of solar energy that would otherwise be wasted.

The result?
✔️ Up to 200% more solar energy² used for EV charging
✔️ Reduced reliance on grid electricity
✔️ Optimized self-consumption

This is smart solar charging that thinks for you, seamlessly balancing performance and sustainability.

Fast When You Need It. Efficient When You Don’t.

Need a full-speed charge before your next trip? No problem.
Wallbox chargers deliver up to 22 kW of 3-phase power when you need maximum performance – either entirely from the grid at night, or by combining grid and solar during the day.

Want to prioritise sustainability instead? Simply activate Eco Mode (surplus solar + grid) or Full-Green Mode (surplus solar only) in the Wallbox App. Your charger will automatically switch from 3-phase to 1-phase charging to make the most of available solar, no toggling or reconfiguring required.

Whether you’re chasing maximum power or maximum efficiency, Wallbox gives you full control – with smarter energy use, built in.

Works With Your Current Setup

Wallbox 3P Optimization is compatible with a wide range of configurations, including:

3-phase homes with single-phase or three-phase solar installations
Properties with limited solar generation
Homes that want to prepare for future solar upgrades

Combined with a Wallbox Power Meter and Energy Management System, it helps create a fully integrated, intelligent energy ecosystem, without requiring major electrical changes.

Real Benefits for European Homes

In solar-forward markets across Europe – from the Netherlands to Germany, Austria to the Nordics – Wallbox’s 3P Optimization is already delivering:

✔️ Increased solar energy usage
✔️ Lower energy bills
✔️ Reduced CO₂ emissions
✔️ Fewer grid upgrades or electrical modifications

And it all works through one compact charger and one intuitive app.

Why This Matters

As solar installations grow and EV adoption accelerates, the energy demands on our homes are changing fast. Wallbox is building technology that adapts – not just to your car, but to your home, your habits, and your energy goals.

3P Optimization is a simple idea with powerful results:
More solar, less effort, better charging.

Learn more about Wallbox solar charging and home energy integration

→ Explore our home EV chargers
→ Discover Energy Management Tools

_{1. Available for Pulsar Max and Pulsar Pro. For tethered versions of Pulsar Max, availability applies to units manufactured from August 2025 onwards. For more details, contact your trusted distributor or installer.}
_{2. Comparing a 3-phase installation with and without the 3P optimization feature (using Solar charging on Full-Green mode). Actual solar energy delivered to the EV will vary depending on weather, solar radiation, shading, season, location and other factors.}

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