Solar Inverter Directory Ireland

How to choose the right solar inverter for an Irish home or business

Your solar inverter is the most important piece of equipment in your solar PV system after the panels themselves. It converts the direct current (DC) electricity generated by your panels into the alternating current (AC) electricity used by your home or business. But modern inverters do much more than convert power — they manage battery charging and discharging, export surplus electricity to the grid, monitor your system in real time, and in some cases provide emergency backup power during a grid outage. Choosing the right inverter means matching the technology to your roof layout, your plans for battery storage, whether you want a home or commercial system, and whether your property has a single-phase or three-phase electricity supply.

Hybrid inverters — the right choice for most Irish homes

For the majority of Irish homeowners, a hybrid (battery-ready) single-phase inverter is the best starting point. A hybrid inverter handles solar generation, battery charging and discharging, and grid export all in one unit — making it simple to add a battery now or at any point in future without changing the inverter. The leading choices in the Irish market are the Huawei SUN2000 (dominant market share, excellent FusionSolar app), Solis RHI (best value, works with a wide range of battery brands), and Fronius Primo GEN24 Plus (premium Austrian manufacture, unique PV Point emergency backup without a battery). All carry 10-year warranties and are compatible with every solar panel in our Solar Panel Directory.

String inverters — when a battery isn't in the plan

If you're certain you won't add a battery, a string inverter like the SMA Sunny Boy is a simpler, slightly lower-cost option. String inverters connect your panels as a series circuit and convert the combined DC output to AC. SMA has been making inverters since the 1980s and their reliability record is exceptional. That said, most Irish installers now recommend hybrid inverters as standard — even for customers with no immediate battery plans — because upgrading later from a string inverter either means replacing the whole inverter or adding a separate, less efficient AC-coupled battery system.

Optimisers and microinverters — solving Ireland's shading problem

Ireland's housing stock has a high proportion of complex roofs — dormer bungalows, semis with chimneys, terraced houses with north-facing rear extensions, and homes where nearby trees or buildings cast shade at certain times of day. Standard string inverters perform poorly when even one panel in the string is shaded, because the weakest panel drags down output for the entire circuit. Power optimisers (SolarEdge) and microinverters (Enphase) solve this by letting each panel operate independently. SolarEdge fits a small optimiser behind each panel and uses a single central inverter; Enphase mounts a complete microinverter on every panel with no central unit at all. Both systems provide per-panel monitoring so you can spot underperformers immediately. The Enphase IQ8H also offers Sunlight Backup — basic emergency power from solar alone during a grid outage, without needing a battery.

Commercial and farm installations — three-phase inverters explained

Most Irish commercial properties, farms, and industrial buildings have a three-phase electricity supply, which requires a three-phase inverter. You cannot use a single-phase inverter on a three-phase supply. The most common three-phase hybrid choices in Ireland are the Huawei SUN2000-M1 and the Sungrow SH10RT, both with battery storage capability. For larger systems above 30kWp, central string inverters like the Sungrow SG50CX (10 MPPTs, suitable for complex layouts) or the Fronius Tauro ECO (Austrian manufacture, IP66, popular on school and council projects) are the standard. Farm buildings may qualify for the SEAI TAMS III grant, which provides up to 60% of solar system costs including the inverter — check the Department of Agriculture's TAMS portal for open tranches.

Does the SEAI grant cover the inverter?

Yes — the SEAI Solar PV Home Grant of €1,800 covers the entire installed solar PV system as one package: panels, inverter, mounting hardware, wiring and labour. There is no separate inverter grant. To qualify, you must be a homeowner, your home must have been built and occupied before 2021, and your installer must be on the SEAI registered contractor list. Crucially, you must receive your Letter of Offer from SEAI before any installation work begins — starting work without this permanently disqualifies the grant.

Inverter monitoring apps — what to look for

Every inverter in this directory includes built-in Wi-Fi and a smartphone app. Huawei FusionSolar is the most feature-rich — real-time generation, consumption and export data, battery state-of-charge, and AI-driven scheduling. SolarEdge mySolarEdge offers the best per-panel visibility, ideal for spotting shading issues or faults. Enphase Enlighten does the same per microinverter. Fronius Solar.web and SolisCloud are reliable mid-tier options.

Solar inverters, batteries and EVs — the complete energy system

The most effective use of a solar inverter in Ireland is as the heart of a complete home energy system: panels generate electricity during the day; the hybrid inverter charges a home battery with the surplus; the battery powers the household in the evening; and a solar-aware EV charger — like the myenergi Zappi in our EV Charger Directory — uses any surplus to top up your electric vehicle for free. A typical 4kWp system with a 5kWh battery can achieve self-consumption of 70–80%, cutting electricity bills by €900–€1,200 per year. Adding an EV charged primarily on solar can save a further €600–€1,000 per year, bringing the total system payback to as little as 5–7 years.