P1Monitor – Free Windows Application for Belgian P1 Smart Meters, Solar Monitoring an

Aloa everyone,

I would like to share P1Monitor, a lightweight Windows application designed to monitor energy consumption, solar production and EV charging from a single dashboard.

It has been written mainly for own installation, as I wanted to replace EVCC/Home Assitant

Main Features

• Smart Meter Monitoring (P1 Port)
• Automatic detection of Belgian P1 smart meters
• Real-time electricity consumption
• Real-time electricity injection to the grid
• Import and export power visualization
• Historical data storage
• Daily, weekly, monthly and yearly statistics
• Consumption trends and energy analysis
  Solar Production Monitoring
• Integration with Hypontech inverters
• Real-time photovoltaic production
• Solar yield statistics
• Self-consumption calculation
• Exported energy tracking
• Historical production charts
• EV Charging Integration
• Zaptec charger integration
• Detection of active charging sessions
• Charger status monitoring
• Charging power visualization
• Session statistics
• Vehicle charging history
  Statistics and Analytics
• Day / Week / Month / Year views
• Interactive charts
• Consumption versus production analysis
• Self-consumption indicators
• Energy balance calculations
• Period comparison tools
  User Experience
• Modern Windows desktop interface
• Compact mini-monitor window
• Portable deployment
• Low resource usage
• Automatic data persistence
• Dark and light theme support
• Designed For
• Homeowners with a Belgian digital meter
• Solar panel owners
• Zaptec charger users
• Energy enthusiasts
• Users looking for a local, privacy-friendly monitoring solution
  Technical Highlights
• Developed in VB.NET
• Native Windows application
• No cloud dependency required for local P1 monitoring
• Automatic smart meter discovery
• Secure storage of sensitive settings
• Historical data archiving

Why I Built It

Most energy monitoring solutions focus on a single aspect: consumption, solar production or EV charging.

The goal of P1Monitor is to provide a unified view of:

• Household consumption
• Solar production
• Grid import/export
• EV charging

all within a single desktop application.

The application has been written in less than 1 day

When I'll recieve my battery, I'll add AI and battery managment to maximise my auto-consumption.

Feedback, suggestions and feature requests are welcome.

Enjoy!

Attachment 196201