How Homer works

A local energy brain, no cloud

Homer manages your home's energy from a box at your place. Not from a data center:

  • Your energy data stays in your home. Meter readings, solar yield, heat pump, battery — it all lives on the Homer at your place, never online.
  • Direct control. Your devices are controlled locally. No detour through a server of ours.
  • Local login. Your password is known only to your own Homer. We never see it.

This simply means: we cannot access your energy data. Not because we promise not to, but because it's technically impossible.

Smart energy management without the cloud, without a profile, without giving anything out of your hands.

Central server

  • Registration
  • Connection brokering
  • Software updates
  • Homer discovery

Your Homer

  • Energy metering
  • Device control
  • Local storage
  • Authentication

Your installation

  • Solar, heat pump, battery
  • Own PCBs and controllers
  • MQTT control
  • Web interface

Connection and security

For remote access the central server only brokers the connection — your energy system stays with you:

1

Installation

Your Homer generates a unique ID and registers with the central server. This makes your system reachable remotely without exposing your network.

2

Create account

You create an account on your own Homer. Your password never leaves your local system — the central server only knows your name.

3

Encrypted connection

Your Homer establishes an encrypted WebSocket connection with the central server. An outgoing connection — no ports to open in your firewall.

4

Direct access

For remote access, the central server helps set up the connection, but you talk directly to your own Homer. The central server doesn't see your energy data.

Built-in protection

This architecture protects you automatically:

  • The central server absorbs attacks — your local system stays invisible
  • Your credentials and energy data stay local, always
  • If the central server goes down, your home keeps being managed

Built down to the circuit board

Own hardware

The hardware is self-designed, not bought off the shelf:

  • Own PCBs, firmware and controllers for control and metering
  • MQTT as the backbone — valves, relays and sensors talk locally
  • Runs on efficient hardware: a Luckfox Pico or Raspberry Pi

Because we build the hardware ourselves, we know exactly what's going on — and you can still repair it ten years from now.

Robust software

The software is built to run unattended for years:

  • Minimal dependencies for long-term stability
  • Automatic updates with rollback when something goes wrong
  • Once installed, years of minimal maintenance

Energy data and storage

What Homer measures

  • Consumption and feed-in, per phase and per circuit
  • Solar yield, battery charge and heat pump performance
  • Temperatures of every heat source and buffer
  • Tariffs and peak moments for smart control

All data to give insight into and optimize your energy — not for profiling.

Long-term storage

  • Everything local on your own Homer
  • Retained for 10 years by default
  • Smart summarization for efficient storage usage
  • Detailed recent readings, meaningful historical trends

The architecture

Central server

  • Homer registration
  • Remote connection
  • Software updates
  • Ownership transfer

Connection broker — has no access to your energy data.

Homer at home

  • Metering and controlling energy
  • Driving own PCBs and controllers over MQTT
  • Local storage and processing
  • User management

The brain of your installation — runs at your place, even without internet.

Interface

  • Energy consumption at a glance
  • Control solar, heat pump and battery
  • Per-circuit monitoring
  • System status

Works on any device, adapts to any screen size.

Security

Encrypted communication

All traffic between your devices and your Homer goes through HTTPS and WSS — encrypted, always.

Local authentication

Your credentials are stored and verified locally. Not in the cloud. Never.

Roles and permissions

Admin, Editor, User, Guest — everyone gets exactly the access they need, nothing more.

Offline operation

No internet? Your energy system keeps running. Your home doesn't depend on an outside connection.

Yours, for the long run

Grows with your installation

Start small, expand as your energy system grows:

  • Add extra heat sources, a battery or solar panels
  • Extend per-circuit monitoring
  • Panel design and load analysis for installers
  • And because it's your own machine, it can run more than just energy

Transferable

Homer grows with your life:

  • Secure transfer when selling your home
  • Link your system to a new location
  • Take your energy history when moving
  • Privacy and ownership always guaranteed

Sounds good?

If we stop tomorrow, your system just keeps running. Get in touch to discuss what Homer can do for your energy.

Get in touch