Installation guide: balcony solar with storage
A plug-in system takes about two hours and ordinary tools. This guide covers the order of work and the points people get wrong. The manual in the carton is binding; read it before you start.
Before you start
- Check the local rule. In Germany plug-in systems may feed in up to 800 VA and must be registered in the Marktstammdatenregister. Other countries differ; ask your grid operator.
- Check the railing or wall. Panels act like a sail; the mounting must hold in a storm.
- Check the socket. Use a fixed wall socket on its own circuit if possible, never an extension reel.
- Lay out every part and compare with the packing list.
Order of work
- Mount the panelsFix the brackets first, then the panels. Keep the panels covered or face down until the cables are connected: a panel in the sun is live.
- Place the battery and the HubOn a level floor, out of direct sun, with 10 cm of free air around. The Power Box and the Hub are IP65 and may stand outdoors.
- Connect battery to HubUse the supplied battery cable. Push until the connector locks. For two or three Power Boxes, connect them in parallel as shown in the manual.
- Connect panels to HubMC4 plus to plus, minus to minus, one string per MPPT input. Do not exceed the input voltage on the datasheet.
- Connect Hub to microinverterThe Hub output goes to the PV input of the microinverter.
- Plug in lastOnly now plug the AC cable into the socket. The microinverter starts feeding after the grid check, usually within five minutes.
- Pair the appSet the feed-in limit and the charging schedule. See the app guide.
Common mistakes
| Symptom | Usual cause | Fix |
|---|---|---|
| Microinverter LED stays red | No grid detected: socket switched off or circuit breaker tripped | Check the socket with another device |
| Battery does not charge in sunshine | Panels connected to the microinverter instead of the Hub | Panels go to the Hub; the Hub feeds the microinverter |
| Low output at noon | Partial shade from the railing or a plant | Move or tilt the panel; one shaded cell limits the whole string |
| App cannot find the device | Router is on 5 GHz only | Enable the 2.4 GHz band |
String inverters from 3 kW upwards must be installed by a licensed electrician. We supply the datasheet, the single-line diagram and the commissioning checklist.
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