Eddi Hot water solar controller

Put the brain into your solar PV with the ultimate solar diverter

A solar photovoltaic (PV) system without an eddi is a like a car without a steering wheel or driver. Without an eddi, you have no control over where you want your self-generated energy to go, or how you want to use it.


Solar PV owners without an eddi waste large amounts of their self-generated energy by giving any unused electricity freely, or cheaply back to the grid.


A solar diverter ensures that you are maximising the consumption of all your own self-generated solar / wind energy by diverting it to be used within your own property, such as to power heating systems, heat water or maximise the efficiency of a heat pump. The possibilities are endless!

Don’t waste another watt of your self-generated energy

State-of-the-art technology to monitor PV performance and your energy consumption. This means that surplus power can always be used in the best way – heating your water with solar ready for when you need it most.

Contact Us

Watch your energy go further with eddi

eddi easily connects into any existing micro-generation system. When added, eddi continually makes intelligent decisions every <1 second about how and where your energy generation is used around the home. eddi offers 6 key functions : - 

  • Solar power diversion

    eddi diverts any excess solar or wind generation back into the property, to help maximise the consumption of your self-generated energy opposed to exporting out to the grid, in turn you can heat water with solar – for free!

  • Low generation trickle charging

    eddi can heat your water using lower amounts of solar generation (<1kW) whereas heat pumps & EV chargers usually require around 1.4kW before they kick in, meaning eddi can trickle charge your hot water when the heat pump isn’t active.

  • Heat appliance switching

    eddi will switch between heat appliances dependent on the amount of generation and the heat of the water at any given time, and will select the most efficient way to keep the water heated.

  • Enhanced hot water functionality

    eddi supports destratification which keeps hot water circulating around the tank, where traditionally hot water rises to the top of the tank. The secondary circulation function will help to circulate hot water around your property at peak times to ensure the hot water is more instant.

  • Advanced app control

    Use the myenergi app to adjust and optimise the settings of your eco-smart tech devices, to achieve maximum efficiency of your heat appliances and other smart devices. Set timers for your boiler through the myenergi app.

  • Smart-Grid Ready

    eddi is a future-proof, eco smart technology, and connects to the internet through WiFi or Ethernet, allowing it to fully integrate and work in harmony with other future smart-grid-ready products around the home, such as heat pumps, battery storage systems (such as libbi) and EV chargers (such as zappi)

Run your heat pump with the intelligence of eddi

If there is not enough solar generation to power-up the heat pump, eddi takes over the task of heating water using any available solar. We call this low generation trickle charging.


eddi can fully heat your water using much lower amounts of solar generation, such as during winter mornings, late summer evenings or when its overcast, ultimately improving the life and efficiency of the heat pump, and prevents reliance on top ups from the grid.


eddi becomes the automatic heat appliance switch dependent on the level of generation, switching between the heat pump (during hours of optimum generation) or eddi, trickle charges with the immersion heater (during periods of lower generation) dependent on your chosen settings and preferences.

Contact Us

Smart tariff tracking

Our eco smart technology makes intelligent decisions based on your self generated power and the energy tariff you are signed up to. This allows your myenergi devices to optimise for drawing energy from the grid at the lowest possible rate per kWh.

Contact Us

Exceeding safety standards

Safety is of paramount importance. Every myenergi product is engineered to the highest standards possible in terms of energy efficiency, but we place equal importance on safety. While we adhere to all industry safety standards, we are always looking to provide the safest experience possible for our installers and users. That’s why we were the first to introduce PEN fault testing ahead of every other manufacturer.

Contact Us

eddi comes with a 3-year warranty

Heat water with solar or wind with the added protection of technical support! As well as having our excellent technical support team on hand to answer any of your questions and queries, eddi also comes with a 3-year warranty. Once your myenergi eddi has been installed, please register your individual products to take full advance of the 3-year warranty support.

Contact Us
Share by: