Connect your inverter

HaymakerHub shows what your solar is doing by reading your inverter. Most inverters need one setting switched on first. This page shows you how, brand by brand. You don't need to be technical.

Three things to know first

Each one takes a minute to understand. After that, the steps below are short.

  • Modbus is how your inverter shares its readings

    Modbus is a way for your inverter to share its numbers with other devices on your home network. It is often switched off when the inverter is installed. HaymakerHub needs it switched on. It only reads. It doesn't change how your solar runs.

  • The IP address is your inverter's number on your network

    Every device on your home network has an address made of four numbers with dots. It looks like 192.168.1.50. HaymakerHub needs your inverter's address to find it. The section Finding the IP address shows where to look.

  • Both need to be on the same network

    HaymakerHub joins your home WiFi. Your inverter must be connected to that same home network, by WiFi or by cable. If your inverter is on its own separate network, HaymakerHub can't reach it.

Which brands work today

Two brands are supported. Four more are built and we are testing them on real systems now.

Works today

  • SigenergySupported
  • GoodWeSupported

Built, now testing

  • SungrowIn testing
  • FroniusIn testing
  • SolarEdgeIn testing
  • VictronIn testing

Steps for a brand that is in testing don't mean that brand is supported yet.

We share them for people helping us test. We list a brand as supported once it has worked on real systems.

Finding the IP address

Try these in order. Stop when you find it.

  1. Open your inverter's app on your phone.Look for a page called Network, Communication or WiFi. The IP address is often listed there.
  2. If it isn't there, open your internet router's app or settings page.Your router is the box your internet comes through. It keeps a list of connected devices. Look for a name with your inverter's brand in it.
  3. Write the address down. It looks like 192.168.1.50.
  4. Ask your router to keep that address for the inverter.Routers call this a reserved or fixed address. It stops the number changing later. If it changed, HaymakerHub would lose the inverter. Your installer or internet provider can help with this step.

Telling HaymakerHub where to look

You do this once, during setup on the screen or from your phone.

  1. When HaymakerHub asks for your inverter's address, type the IP address.For example 192.168.1.50.
  2. Leave the brand on Automatic.HaymakerHub works out which brand you have by itself.
  3. Only add a port number if your brand's steps below say so.A port is like a door number on the inverter. HaymakerHub uses door 502 unless you say otherwise. To use another one, add a colon and the number, like 192.168.1.50:1502.

Sigenergy Supported

You can do this yourself in the mySigen app.

  1. Open the mySigen app.
  2. Tap System.
  3. Tap System Settings.
  4. Tap Modbus TCP Server Settings.
  5. Switch the Modbus TCP server on and save.
  6. Give HaymakerHub the inverter's IP address. No port number is needed.

GoodWe Supported

What you do depends on how your GoodWe connects to your network.

If your inverter has a network cable, or a LAN and WiFi kit

  1. Give HaymakerHub the inverter's IP address. No port number is needed.
  2. If nothing shows up, the inverter's Modbus TCP setting may be off.We don't have confirmed steps for this setting yet. Check your inverter's manual, or ask your solar installer to switch on Modbus TCP.

If your inverter only has a small WiFi stick plugged into it

  1. Find the WiFi stick's IP address in your router's device list.
  2. Give HaymakerHub that address with :8899 on the end.For example 192.168.1.80:8899. This is the door GoodWe's WiFi stick uses.

Sungrow In testing

Built and being tested on real systems. Not yet supported.

We don't have confirmed menu steps for Sungrow yet.

The setting is usually called Modbus TCP. Check your inverter's manual, or ask your solar installer to switch it on.

If your inverter has its own network cable socket, use that connection. The small WiNet-S WiFi stick allows only one connection at a time, and it can drop out.

Fronius GEN24 In testing

Built and being tested on real systems. Not yet supported. These steps are for the Primo GEN24 and Symo GEN24.

Check this before you change anything

Step 5 changes how the inverter lays out its readings. Anything else that already reads your inverter would then read the wrong numbers. That could be Home Assistant, a battery system, a car charger or another monitor. If something else reads your inverter, ask your installer before you go ahead.

  1. Open the inverter's web page in a browser.Type the inverter's IP address into the address bar. Your installer may need to log in for you.
  2. Go to Communication.
  3. Go to Modbus.
  4. Switch on the Modbus TCP server.
  5. Set SunSpec Model Type to int + SF.The factory setting is float. HaymakerHub can't read float. If it is left on float, the screen tells you to change it.
  6. Leave the meter address at 200.
  7. Leave Allow control switched off.HaymakerHub only reads. It doesn't need control.
  8. Save.
  9. Give HaymakerHub the inverter's IP address. If the Modbus page shows a port other than 502, add it on the end.

SolarEdge In testing

Built and being tested on real systems. Not yet supported. Our testing covers SolarEdge systems without a SolarEdge battery.

We don't have confirmed menu steps for SolarEdge yet.

The setting is usually called Modbus TCP. It is set in SolarEdge's SetApp, which normally needs your installer. Ask them to switch it on.

SolarEdge often uses door 1502. If so, give HaymakerHub the address with :1502 on the end.

A SolarEdge inverter allows one Modbus connection at a time. If another system already uses it, HaymakerHub can't connect.

Victron In testing

Built and being tested on real systems. Not yet supported. HaymakerHub reads your Victron through its GX device, such as a Cerbo GX.

  1. Open the GX device's menu.Use its screen, or Remote Console in VRM.
  2. Go to Settings.
  3. Go to Services.
  4. Switch Modbus TCP on.It is off when the GX device is new.
  5. Give HaymakerHub the GX device's IP address. No port number is needed.

If the screen can't find it

  1. Check the IP address against your router's list.
  2. Check the Modbus setting is still switched on.
  3. Check the inverter and HaymakerHub are on the same home network.
  4. Ask your solar installer.Show them this page. It is usually a couple of minutes' work for them.