MyEnergi Libbi Review: The All-in-One Inverter + Battery for Irish Homes

If you’re thinking about boosting your Irish home’s solar setup with energy storage, the Libbi from myenergi catches the eye. It bundles a hybrid inverter and modular battery storage into one physical system. That means fewer separate boxes on the wall, tight integration with your solar PV and other smart devices, and a streamlined install. For homeowners across Dublin, Cork and the rest of Ireland who want to make the most of self-generated solar, time-of-use tariffs and potential grid outages. The Libbi deserves a close look.

In this review we’ll explore its specs, its strengths, how it stacks up for Irish conditions, and where it might have trade-offs.
(And yes, WattCharger installs and supports it as part of our advanced solar & storage offering.)

What is the Libbi?

• The Libbi is a hybrid inverter + battery storage system from myenergi. One box handles inverter duties (converting your solar DC to AC, managing battery charge/discharge) and battery modules stack underneath or alongside.
• Modular battery capacity: each module stores 5 kWh; up to four modules can be used in parallel for up to ~20 kWh storage.
• Two main inverter sizes: a 3.68 kW version and a 5.0 kW version.
• Designed to play nicely with the myenergi ecosystem (e.g., the Zappi EV charger, the Eddi hot water diverter) so you can prioritise where your green energy goes (home loads, car, water heating, battery).

Why it’s well-suited for Irish homes

Smart integration – Because many Irish homes now have solar PV, maybe an EV charger (or will soon), the Libbi fits the “one-system to rule them all” philosophy. You can direct your solar to your battery, your car charger, or your home loads via one app interface.

Modular capacity – With up to 20 kWh capability, you can size to your usage. In Ireland, a family home using 8-10 kWh/day could use a 10–15 kWh battery size and still have headroom. The modular format helps future-proof.

Weather and grid readiness – Irish homes contend with variable sunlight and occasional grid interruptions. The Libbi offers optional blackout/backup output mode, so in a power cut your battery can supply a dedicated circuit.

Fits grants & tariffs – As part of a solar + storage system, the Libbi can help you take advantage of Irish incentives (via WattCharger we guide you through those). Also, if you’re on smart tariffs or expecting price shifts, the system supports charging when electricity is cheap and discharging when needed.

Key Specification Highlights

• Usable battery capacity per 5 kWh module: ~4.6 kWh (nominal 5.12 kWh with ~90% depth of discharge).
• Operating battery voltage nominal ~51.2 V; voltage range ~44.8-56.5 V.
• Inverter spec (3.68 kW version): Max DC voltage ~580 V, dual MPPT, high efficiency (~97.6%).
• Weatherproofing: Inverter/battery modules rated IP65 (so suitable for external, though some parts must be indoors).

Installation & Practical Notes

At WattCharger we have found the Libbi installation process to be smooth and straightforward, thanks to its modular design and clear documentation.

That said, a few practical considerations:

• While the inverter and battery modules are weatherproof, the dedicated controller unit must be installed indoors in a location with good air flow.
• When installed on imperfect walls, getting the stack alignment perfect can take extra effort (important to ensure the top inverter unit is level).
• The ecosystem works best when you commit to using the myenergi app and integrate your loads accordingly (EV charger, hot water diverter etc.).

Strengths: What we like

• One system handles both solar inverter and battery storage: less equipment, cleaner setup.
• Modular growth: start with e.g. 5 kWh and expand to 10/15/20 kWh if your needs change.
• Strong brand ecosystem: Integration with myenergi devices means smart energy routing rather than “battery sits doing nothing”.
• Backup capability: In Irish homes where grid stability is a concern, the optional backup functionality is a meaningful plus.
• Good quality build & proven specs: Many units for Irish and UK homes already installed.

Things to keep in mind

• Premium quality at a higher price point: The Libbi sits at the premium end of the market, reflecting its design, build quality, and Myenergi’s ecosystem integration. While the “cost per kWh stored” may be slightly higher than some alternatives, it’s designed for reliability and seamless smart-home performance.
• Smart tariff optimisation requires setup: The Libbi supports off-peak charging and solar prioritisation, though fine-tuning these features may take a little manual adjustment to suit your household’s habits, offering flexibility for those who like control.
• Indoor/outdoor installation mix: The modular design allows for flexible installation, with most components suitable for outdoor mounting. However, one control unit does need to be placed indoors, so a bit of planning helps ensure the best setup.
• Right-sizing matters: If your household energy use is modest or you export very little solar power, a smaller battery setup may be more practical. Myenergi’s modular system makes it easy to match capacity to your actual needs

Is it right for Irish homeowners?

If you are in Ireland (Dublin, Cork, rural or urban) and you:

• Already have or plan to install solar PV, and
• Are thinking about energy storage (battery), perhaps to use solar evenings / reduce grid import / have backup, and
• Want tight integration with an EV charger, diverter and home loads,

then the Libbi system is a very compelling choice. The modular capacity means you can tailor it to your household size and usage profile.

However, if your electricity usage is low, your solar export minimal, or budget is the primary constraint, you may want to compare with more cost-optimised systems. As a premium product, the investment is higher, but so is the capability.

Final verdict

The myenergi Libbi packs a lot of smart features and integration into one elegant system. For Irish homeowners who are serious about maximising their solar self-consumption, reducing grid reliance and future-proofing their home energy system (especially with EVs and smart tariffs), it is justified.

WattCharger’s view: We recommend it highly when the budget aligns and the use-case justifies it. We’ll install it with precision, tune it to your usage, and provide ongoing monitoring to ensure you get value out of it.

If you’re ready to explore solar + storage in Ireland and want to talk through whether the Libbi is right for you, get your free quote today with WattCharger and see how this system could work for your home.