Ask what happens when the array can’t all face one way, because that is the question a 5kW inverter either answers well or fudges. The Fronius Primo GEN24 5kW runs two independent MPP trackers, so a group of panels on the north face and a group on the west are read separately instead of averaged into one compromise.
That is the practical case for this unit. Buy the Fronius Primo 5kW solar inverter when the target is 5000W of AC output and the array has to sit on more than one plane to fit. It runs on a single-phase supply, which is what most homes are already wired for.
See the rest of the inverters we install if you’re still comparing units.
Maximum Efficiency
Runs its efficiency flat rather than peaky. Fronius publishes 96.3%, 97.2%, and 96.7% across 230V, 400V, and 530V, so the unit is still converting well at the voltages an array actually spends its day at, not only at the single point that makes a good headline.
Durable & Long Life
Sits sealed against what actually ends an inverter early. IP66 keeps moisture and airborne dust out of the electronics, so the unit can take a wall the weather reaches rather than needing one under cover.
Backup Power in the Same Unit
Carries its backup provision inside the unit. The PV Point is part of the inverter, so keeping one outlet live through an outage is a wiring decision taken at install rather than a second box bought afterwards.
Genuine Power
Converts 5000 VA into a full 5000W of AC output. Nothing is quietly held back between the number on the label and what reaches your switchboard, which is the assumption the array was sized on in the first place.
Who Is This Product For?
- Fitting an array across two roof planes. Panels that have to go north and west to fit get a tracker each, so the layout follows the roof rather than the inverter.
- Replacing an inverter under an array that is already on the roof. Most of the spend is already up there, so the job narrows to the unit, the electrical work, and whether the existing strings should be re-split across the two trackers.
- Building a single-phase system to 5000W of AC output. With 5000 VA converted to 5000W of AC, plus 530V and 22A of input headroom on the main tracker, the inverter isn’t the thing capping what the array can do.
- Mounting where noise or weather rules out the easy wall. At 42 dB(A) and sealed to IP66, it will sit on a wall shared with living space or fully exposed outside, so the cable run picks the position instead of the unit.
