Everything stays in your home network. There is no cloud in between, neither from the manufacturer nor from us.
Inverteryour PV system
Stick or gatewayWi-Fi stick, dongle or RS485 gateway
Your computer with SUNARaspberry Pi, mini PC, NAS or Proxmox
Your screensbrowser, wall tablet and app on Wi-Fi
No detour through the internet: from the inverter straight to your screen.
Why SUNA Home is so safe
Your measurements stay with youThey end up in no cloud, not even ours.
No port forwarding on the routerYou open nothing to the outside, your home network stays closed.
No manufacturer account neededSUNA talks directly to your inverter.
Updates only when you wantYou install a new SUNA version yourself, whenever it suits you.
SUNA only readsSUNA cannot change anything on your inverter. That is technically ruled out.
Works without internetIf the internet is down, you still see all values.
Values every secondInstead of every few minutes from the manufacturer cloud.
No ads, no trackingSUNA shows you your system, nothing else.
Fully without the manufacturer if you likeIf you block the stick from the internet in your router, nobody can reach your inverter from outside any more, not even the manufacturer. SUNA keeps running.
To be honest
Once a day SUNA checks the license with us. License key, installation ID, system name, driver and version go to our server in Germany, but no measurements.
Many inverters, especially with a Wi-Fi stick, keep sending their data to the manufacturer cloud on their own. SUNA does not change that. If you want no cloud at all, block the stick from the internet in your router. SUNA keeps running, only the manufacturer app stops.
What you need
A small computer that is always on
SUNA runs on Linux with Docker. The guide shows you step by step what you need and how to install it.
If you use a Raspberry Pi (4 or 5) or mini PC
install Raspberry Pi OS, Debian or Ubuntu and connect it to the network. That is all.
If you have Proxmox
create an LXC container with Debian (1 core, 1 GB RAM and 8 GB storage are enough), turn on “Nesting” and “keyctl” under options, then continue as with the mini PC.
If you use a NAS (Synology, QNAP …)
install Docker or Container Manager from the package center and turn on SSH, then sign in via SSH and continue with the next step.
If you have a Windows PC or Mac
Docker Desktop works for trying it out. On Windows also install Ubuntu (WSL) and enter the command from the next step in the Ubuntu window, then open SUNA on the PC at http://localhost:8080. For permanent use a small Linux computer is better, because SUNA should run all the time.
If you run Linux anyway
then you do not need a guide. Docker is probably running already, the rest is one line:
$curl -fsSL https://suna.solar/install.sh | bash
And yes, you may read the script first. We know you will.
A connection to the inverter
Depending on the inverter, the stick that is already plugged in is enough, or a small RS485 gateway for around 30 to 40 €.
Deye hybrid, single- and three-phasevia the Wi-Fi stick, no extra deviceBeta
Nothing to change: SUNA asks the Wi-Fi stick that is already plugged into the Deye. Note the serial number of the stick (label “SN”, usually 10 digits) and its IP address from your router’s device list. The Deye Cloud keeps running as before.
Deye hybrid, single- and three-phasevia Modbus, with an RS485 gateway
An RS485 gateway (for example Waveshare RS485 TO POE ETH (B), around €30 to €40) goes to the Modbus port of the Deye and by network cable to the router. Set on the gateway: 9600 baud, 8N1, mode “Modbus TCP to RTU”, port 502. Note the IP address of the gateway.
Growatt SPHwith a stick running OpenInverterGateway
The Growatt’s USB stick runs the free OpenInverterGateway firmware instead of ShineWiFi and sends its values to an MQTT broker on your network. Note the broker’s address, user and the topic.
Growatt SPHvia Modbus, with an RS485 gatewayBeta
An RS485 gateway goes to the Growatt’s RS485 port, not to the port of the meter or the battery. On the inverter set the RS485 port to VPP and the address to 1, on the gateway 9600 baud, 8N1, “Modbus TCP to RTU”, port 502. Note the IP address of the gateway.
Huawei SUN2000via the SDongle, no extra deviceBeta
Modbus TCP has to be enabled on the SDongle once. The installer does this in the FusionSolar app: in the SDongle settings set “Modbus TCP” to “Enable (unrestricted)”. Note the IP address of the SDongle from your router’s device list.
Sungrow hybrid (SH)via WiNet-S or LAN, no extra deviceBeta
Nothing to change: SUNA asks the WiNet-S or the inverter’s LAN port, most reliably via network cable. Note the IP address from your router’s device list.
Hoymiles HM, HMS, HMTvia OpenDTU on the home networkBeta
The inverters have to be set up in the OpenDTU and show values there. Nothing else to change, SUNA reads without a password. Note the IP address of the OpenDTU from your router’s device list.
Hoymiles HM, HMS, HMTvia AhoyDTU on the home networkBeta
The inverters have to be set up in the AhoyDTU and show values there. Nothing else to change. Note the IP address of the AhoyDTU from your router’s device list.
Tip: give the device a fixed IP address in your router, then SUNA always finds it.
Locally SUNA only reads Deye hybrid inverters like SUN‑12K‑SG04LP3, single-phase ones like SUN‑5K‑SG03LP1 still as beta. String and micro inverters (e.g. SUN‑10K‑G05, SUN‑M80G4) work with SUNA Online.
How to set up SUNA Home
Five steps, most of them done in a few minutes.
Prepare the computer
Raspberry Pi, mini PC, NAS or Proxmox: which one suits you is described above under “What you need”. You do not have to install Docker yourself.
Create an account and install SUNA
The guide shows step by step how to prepare the computer (terminal, curl and Docker), with a copy button for every command.
At the end the console shows the address of SUNA, for example http://192.168.178.20:8080. Open it on your phone or PC on the same network and create the account for your system.
Connect the inverter
In the SUNA setup you choose your inverter and enter the connection, for example the IP address and serial number of the Deye stick. What you need for that is listed above per inverter.
Watch it anywhere in your home network
In the browser on phone, PC and laptop
As a tablet on the wall in kiosk mode
In the SUNA app on your Wi-Fi. On the go you only see SUNA Home through a VPN to your home, for example via your router.
SUNA