Do you want to look beyond the standard app? For true 'power users', there's a way to integrate the Marstek Venus E battery, your smart meter, and your solar panels into one powerful overview. In this article, you'll discover how a Marstek Energy Dashboard in Home Assistant elevates your energy management to a professional level.
Many home battery users only look at the charge percentage in the standard app. But what if you could see exactly how energy flows through your home? With Home Assistant, you can create a dashboard that is far more comprehensive than any standard app.
What is a Marstek Energy Dashboard?
A Marstek Energy Dashboard is a central screen (often on a wall-mounted tablet or your PC) that combines real-time information from various sources:
- Your Marstek Venus E battery(ies): For status and charging currents.
- The smart meter: For your actual consumption and grid feedback.
- Solar panels: For your current yield.
At a glance, you can see not only what your battery is doing, but also how much you are saving or feeding back into the grid at that moment.
Why choose Home Assistant?
Opting for a dashboard via Home Assistant (open-source software) offers advantages that a standard app does not:
- Context instead of numbers: You don't just see that the battery is full, but also why (for example, because your solar panels are generating more than you're consuming).
- Smart automations: Set your battery to charge at low (dynamic) rates or have your washing machine only start when the battery is above 80%.
- Complete privacy: Everything runs locally on your own network; you are not dependent on the cloud.
What do you need for this setup?
To build this, you need a few hardware components:
- Marstek Venus E battery: The source of your storage data. This can be connected via a Modbus LAN connection.
- Smart Meter WiFi Gateway: Crucial for reading your actual consumption from the P1 port of your digital meter. We recommend the Smart Gateways WiFi Gateway for a stable, cloud-free connection.
- Active P1 Splitter (Pro): Essential if you want to connect multiple devices (such as your gateway and the Marstek P1 meter) to your P1 port without data loss.
How does it work in practice?
The dashboard works locally and provides real-time updates. You'll see energy spikes in your graphs when you turn on the oven or when the sun briefly disappears behind the clouds. You can compare historical trends by day, week, or month to discover patterns and save even more effectively.
Installation & Configuration
Although this is a community solution and not an official factory app, the installation is straightforward for those already working with Home Assistant.
Important: The configuration files To correctly combine the data from your batteries and smart meter, specific calculations are needed (marstek_calculations.yaml and dsmr_calculations.yaml).
Send us an email if you would like the necessary configuration files. We will then provide you with the correct YAML scripts and the dashboard file, so you can immediately begin installation in your Home Assistant environment.
Note: As this is a community solution, there is no official customer service from the manufacturer. It is a tool for those who want full control and insight themselves.
In summary: Why a dashboard?
With a Marstek Energy Dashboard, you move from monitoring to managing. You get a total overview of production, storage, and consumption in one graph, entirely under local control.
Do you also want to start with smart energy storage? Check out our Marstek Venus E in the shop and take the first step towards an independent energy household!