Questions and answers

Yes, with SUNA Online. Add the system in your customer account and enter the sign-in details of your manufacturer account. Our server fetches the values about every 5 minutes, you need no hardware of your own.

A free SUNA account and the login of the app where you see your system today. Depending on the manufacturer you need a free API access once. What exactly is listed per manufacturer on the SUNA Online page.

For the way through the Solarman cloud, yes: Solarman hands out App ID and App Secret only on request by e-mail to service@solarmanpv.com, free of charge. If you have a Deye with a Wi-Fi stick, it also works without: with SUNA Home, SUNA reads the stick directly in your home network, you only need its IP address and serial number.

About every 5 minutes, that is how often the manufacturer cloud provides them. Values every second come with SUNA Home.

Encrypted on our server in Germany. They never go to the browser and never appear in a log. SUNA only uses them to read your values, it cannot change anything.

With SUNA Online, yes, in the browser and in the app wherever you are. SUNA Home shows the values only on your home network, the measurements never leave the house. If you want both, also add the system online via your manufacturer cloud.

A small computer that is always on, for example a Raspberry Pi 4 or 5, a mini PC or a NAS with Docker. For the local way via Modbus also an RS485 gateway for around €30 to €40. With Deye, the local way also works via the Wi-Fi stick that is already plugged in, with Huawei via the SDongle, with Sungrow via the WiNet-S or the LAN port and with Hoymiles via an OpenDTU or AhoyDTU.

In your customer account under add system, at home in the home network, you get an install command. Paste it into the console of your computer. It checks what is missing, installs Docker if you agree and starts SUNA. The full guide is on the SUNA Home page.

Not for SUNA Home: it runs on your home network and reads the inverter directly. You only need internet for updates and the daily license check, and if it is gone for a few days, SUNA just keeps running. SUNA Online and the way via the manufacturer cloud do need internet.

No. SUNA Home needs no port forwarding and cannot be reached from outside. If you want to look on the go, use a VPN to your home, for example through your router, or add the system as SUNA Online as well.

Your measurements never. Once a day SUNA checks the license with us, license key, installation ID, system name, driver and version go to our server in Germany. Note: many Wi-Fi sticks send their values to the manufacturer on their own. If you do not want that, block the stick from the internet in your router, SUNA keeps running.

Yes. Kiosk mode shows the time, energy flow and today’s figures in full screen and dims at night.

Create a new install command in your customer account and run it on your computer. Your data is kept. Updates only arrive when you install them yourself. From SUNA 0.7.9, with a license, SUNA shows a notice at the top of the dashboard when a new version is out.

On the device that runs SUNA, enter “sudo suna passwort”. It deletes only the account, your measurements and settings stay. Then open SUNA in your browser and create a new account right away, just like during setup. By the way, the SUNA Home account is not your account on suna.solar: in the app, enter the SUNA Home login under “Local SUNA”. The command exists from SUNA 0.7.8, update the package first if you run an older version.

Yes, with the command “sudo suna entfernen”. It asks first whether your measurements should be deleted too. Docker itself stays installed.

Locally you get values every second and your data never leaves the house. Depending on the device this needs a small gateway. Via the cloud no extra hardware is needed, but values only arrive about every 5 minutes and depend on the manufacturer.

Currently with Deye and Growatt, each locally or via the manufacturer’s cloud. As a beta also Huawei SUN2000 and Sungrow (locally or via FusionSolar or iSolarCloud), Hoymiles micro inverters locally via an OpenDTU or AhoyDTU or via the Hoymiles app, Anker SOLIX balcony systems via the Anker app, EcoFlow PowerOcean via the EcoFlow Open API and devices with a Solarman stick via SOLARMAN Smart. You find all devices at a glance under Devices at the top. More manufacturers will follow. Tell us at hallo@suna.solar which device you have.

No. SUNA only reads measurements and cannot change any settings on your inverter, battery or other devices. For Modbus only read commands are built in, for manufacturer clouds only queries for the system list and measurements. SUNA rejects any other request before it is sent, and automated tests make sure it stays that way.

Your measurements stay on your device. For your account we store your e-mail address, name and a hash of your password, never the password itself. To protect against attacks we log requests to the website for 7 days. With a license, SUNA reports once a day the license, system name, driver and version, but no measurements.

Yes, as long as your phone is on your home Wi-Fi. On the go you only see SUNA Home through a VPN to your home. SUNA Online shows in the app anywhere.

Via Google Play. The beta test is running there right now: email hallo@suna.solar with the address of your Google account and we will add you. The app runs on Android 8 and newer, updates come via Google Play.

With a license SUNA simply keeps running. Without one the display locks after a one week grace period, but recording continues. Your data is kept in any case.

Sure. At suna.solar/mitmachen you briefly tell us what you use. As a thank you, you use SUNA for free until 31 December 2026.