Eddi vs iBoost: Comparing Solar Power Diverters

At Blue Ape Renewables, we specialise in helping homeowners get the most out of their solar PV systems. One of the best ways to maximise your solar energy usage is with a solar power diverter, like the Eddi from myenergi or the iBoost from Marlec.

Both Eddi and iBoost work by diverting excess solar energy to your home's hot water system, rather than exporting it to the grid for minimal return. This means free hot water, reduced energy bills, and greater self-sufficiency.



So, which is the better option? In this blog, we'll compare the Eddi and iBoost power diverters, exploring their features, benefits, and key differences to help you decide which one is right for your home.

What is a Solar Power Diverter & How Does It Work?

When you generate more solar electricity than your home is using, the surplus energy is typically exported to the National Grid. However, rather than selling it back for pennies, a power diverter automatically redirects that excess energy to your immersion heater, underfloor heating, or other resistive loads in your home.

This means you use more of your own solar energy, making your system even more cost-effective.

The two most popular solar power diverters on the market today are the Eddi from myenergi and the iBoost from Marlec. Let's see how they compare.

Eddi vs. iBoost: Key Features & Comparison

Why Choose the Eddi?

The Eddi from myenergi is a next-generation solar power diverter designed to give homeowners greater control over how they use their surplus solar energy.

• ✅ Full Smart Control – The myenergi app allows you to monitor and control your system from anywhere.


• ✅ Multi-Load Capability – Unlike iBoost, Eddi can divert power to multiple appliances, including hot water tanks, underfloor heating, and electric heaters.


• ✅ Battery Storage Integration – Works seamlessly with battery storage, ensuring you prioritise battery charging before heating.


• ✅ Trickle Charge Mode – Unlike iBoost, Eddi can use even small amounts of surplus energy, rather than waiting for full kW increments.


• ✅ Better Future-Proofing – Compatible with EV chargers (like the myenergi Zappi) and other smart home technology.

Why Choose the iBoost?

The iBoost from Marlec is a more basic, cost-effective solution for diverting excess solar energy to your immersion heater.

• ✅ Simple & Reliable – Ideal for homeowners who want a straightforward, plug-and-play diverter.


• ✅ Lower Initial Cost – Typically cheaper upfront than the Eddi.


• ✅ Set-and-Forget Operation – Once installed, it automatically diverts surplus power when available.

Which One Should You Choose?

• ✔ If you want the most advanced, efficient system that integrates with battery storage, EV chargers, and smart home controls → Choose the Eddi.


• ✔ If you want a basic, budget-friendly power diverter that simply heats your water with excess solar energy → Choose the iBoost.

At Blue Ape Renewables, we highly recommend the Eddi for its superior efficiency, smart features, and future-proof capabilities. It ensures you maximise every bit of solar energy, whether through hot water heating, battery storage, or EV charging.

How Much Can You Save with a Solar Diverter?

On average, a household with a solar power diverter can save £250-£400 per year on heating costs, depending on how much hot water they use.

Since both Eddi and iBoost eliminate the need for gas or electric immersion heating, they pay for themselves within a few years.

Why Choose Blue Ape Renewables for Your Eddi or iBoost Installation?

At Blue Ape Renewables, we specialise in helping homeowners get the most from their solar PV systems.

• 🔹 We install both Eddi and iBoost – but we'll recommend the best solution for your needs.


• 🔹 We are myenergi-certified installers – ensuring professional setup and support.


• 🔹 We offer expert advice on maximising solar energy savings.


• 🔹 We provide full system integration, including battery storage and EV chargers.


• 🔹 Watch our YouTube channel to see real installations in action!