P1 VoltBridge
P1 VoltBridge: the meter reader for your digital meter
A small device that clicks into the P1 port of your digital meter and sends what your home is importing and exporting right now straight to ModuleTwo over your home network. That is how the battery knows when to charge or discharge. An existing P1 device connects to the built-in pass-through port.
If you buy a ModuleTwo, the P1 VoltBridge is in the box. You don't need to order a second one.
Sold separately for €49
MyGrid DataLock™: your data stays yours, stored in Europe →
What is a P1 port?
On a compatible digital meter, the P1 port is a small socket (like a phone-line plug, RJ12) on the front or underside of the meter, often behind a flap or marked "P1". Through that port the meter shares its readings: how much your home is importing and exporting at this moment.
The VoltBridge passes on meter data. The power for your household appliances does not run through this device; ModuleTwo exchanges power through its own mains connection.
The readings travel over your local home network straight to ModuleTwo. For the overview in the MyGrid Energy app, aggregated readings are sent to our secure cloud in the EU.
What it does for you
Live import and export
See in the MyGrid Energy app what your home is taking from or putting on the grid right now.
Smart charging and discharging
ModuleTwo charges with your solar surplus and supplies power when your home needs more, based on these readings.
No changes to your installation
Click in, pair, done. Your meter stays the grid operator's and is not modified.
Built-in splitter
Already have a P1 device? Connect it to VoltBridge's pass-through port so both devices can use the same P1 port.
External power over USB-C
If the meter's P1 port does not provide enough power, you can power VoltBridge through its USB-C connection using an external power supply.
Home Assistant
You can integrate P1 VoltBridge and ModuleTwo with Home Assistant to monitor your energy data and include ModuleTwo control in your own automations.
Quick start
How to pair the P1 VoltBridge
Keep your phone nearby with Bluetooth on. The whole pairing happens in the MyGrid Energy app.
1. Install the MyGrid Energy app
Download the app, open it and create an account (or sign in).
2. Choose Add device › P1 VoltBridge
The app guides you through the next steps.
3. Click the VoltBridge into the P1 port
Insert it into the P1 port of your digital meter. The port must be available and in Belgium sometimes has to be activated first through your grid operator.
4. Hold the button for 5 seconds
This puts the VoltBridge in pairing mode. Switch on Bluetooth on your phone.
5. Select the device and choose your Wi-Fi
The app finds the VoltBridge; connect it to your home Wi-Fi network.
6. Check your live import and export
Do you see values moving in the app? Then the pairing worked.
Not working straight away? Check that the P1 port is active, that the VoltBridge is firmly seated and that your Wi-Fi reaches the meter cupboard.
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Does it work with my meter?
The VoltBridge works with a digital meter that has an available, enabled P1 port. Not sure whether your meter qualifies? Send us your meter model at hello@mygrid.energy and we will check with you.
In Belgium the P1 port of the digital meter often has to be activated first through your grid operator. Do that before you start pairing.
MyGrid DataLock™Your energy. Your data. Your control.
A home battery stays connected to your home for years. With MyGrid DataLock™, we manage the software, security keys and access to battery control ourselves. We develop and manage this digital layer in Belgium, with a secure cloud in the EU.
Connected locally
VoltBridge sends meter readings directly to ModuleTwo over your home network. The battery uses those readings to adjust charging and discharging to your home's needs.
Security in the controller
At startup, our controller checks that its software has been approved by MyGrid. Data exchanged with our platform is secured too.
Your app, our EU cloud
Aggregated meter readings are sent to our secure cloud in the European Union, giving you insight into your energy through the MyGrid Energy app.
Who controls the software matters.
MyGrid manages battery control independently of the hardware manufacturer's cloud. You have one point of contact for software, security and support. For partners, this provides a foundation for controlled growth into networks of coordinated batteries.
Use Home Assistant? Connect P1 VoltBridge and ModuleTwo to monitor your energy data and include ModuleTwo control in your own automations.
Questions about the P1 VoltBridge
Do I need the P1 VoltBridge if I buy a ModuleTwo?
Yes, but you don't need to buy it separately: it comes with every ModuleTwo set. Ordering it on its own only makes sense as a replacement or if you want a second one for another reason.
Does my home's power flow through the VoltBridge?
No. The VoltBridge passes your meter's readings on over your local home network. The power for your household appliances does not run through this device; ModuleTwo exchanges power through its own mains connection.
What if my P1 port is already in use?
P1 VoltBridge has a built-in splitter. Connect your existing P1 device to VoltBridge's pass-through port to use both devices on the same P1 port.
Does the VoltBridge need extra power?
If the meter's P1 port does not provide enough power, you can power VoltBridge through its USB-C connection using an external power supply.
Where does my meter data go?
VoltBridge sends the readings directly to ModuleTwo over your local network. Aggregated readings are sent to our secure EU cloud so you can see your energy data in the MyGrid Energy app.
Does this work with Home Assistant?
Yes. You can integrate P1 VoltBridge and ModuleTwo with Home Assistant to monitor your energy data and include ModuleTwo control in your own automations.
Ready to see your consumption?
With a ModuleTwo the VoltBridge is already included. If you only need the meter reader, order it separately in the shop.