Living in an apartment used to mean watching the solar boom from the sidelines. There was no roof of your own and no space for a large installation. Plug-in balcony systems have changed that. A couple of panels on the railing, a compact battery and an ordinary socket are enough to run part of your home on your own solar power, and a balcony solar system with battery keeps that power available after the sun has gone down.
This guide explains how these systems work in a flat, what to check before you order, and which complete balcony solar sets are worth comparing.
How a Plug-In Balcony System Works
The panels sit on the balcony railing, a wall or a small terrace. They feed a battery unit that stores the energy and passes it into your home through a normal socket. In Germany, plug-in systems may feed up to 800 watts into the home network, which is enough to cover a fridge, router, lights and other devices that run all day. Whatever the household does not use at midday goes into the battery instead of the public grid, so the evening hours can run on daytime sun.
Most systems are controlled through an app, where you can see how much the panels produce, how full the battery is and how much power you have used yourself.
Can You Install One in a Rented Flat?
For tenants and owners in shared buildings, German law now treats balcony solar as a privileged measure, which means a landlord or owners’ association can only refuse for good reason. It is still sensible to ask in writing first, agree how the panels will be mounted and register the system as required. Choosing a complete set that is designed as plug-in equipment also keeps the conversation with your landlord straightforward.
Four Systems Worth Comparing
The table gives a quick overview. Each set is described in more detail below, so you can match a plug-in solar system with storage to the space on your balcony.
| System | Storage | Solar input | What stands out |
|---|---|---|---|
| Solarbank 4 E5000 Pro + 1780Wp module | from 5 kWh | up to 5000 W | Complete set with bifacial module |
| Solarbank 3 E2700 Pro + 890Wp module | expandable to 16.128 kWh | up to 3600 W | Grows with extra batteries |
| Solarbank 2 E1600 | expandable to 9.6 kWh | 2400 W | Compact starting point |
| Solarbank Max | 7 kWh per unit | up to 10,000 W | Largest capacity, fitted by an electrician |
Solarbank 4 E5000 Pro With 1780Wp Bifacial Solar Module
This set pairs the Solarbank 4 E5000 Pro with 1780 watt-peak of bifacial solar modules, so the panels and storage arrive together. The battery starts at five kilowatt hours, handles up to 5000 watts of solar input across four to twelve modules and feeds 800 watts into the home, with a separate 2500 watt off-grid port for heavier appliances. It suits larger flats with a generous balcony or terrace.
Solarbank 3 E2700 Pro With 890Wp Bifacial Solar Module
The Solarbank 3 E2700 Pro set comes with 890 watt-peak of bifacial modules, a good size for a typical balcony railing. The unit accepts up to 3600 watts of solar input and up to eight panels, and it can grow to 16.128 kilowatt hours with up to five batteries, so it can keep pace if you add more panels later.
Solarbank 2 E1600
The Solarbank 2 E1600 is the compact option. Four MPPT inputs support 2400 watts, and expansion batteries take the capacity up to 9.6 kilowatt hours. For a one or two person flat, it is a sensible way to start storing balcony solar without committing to a large system.
Solarbank Max
The Solarbank Max offers seven kilowatt hours per unit, 4600 watts of AC output and up to 10,000 watts of MPPT input, plus a 3680 watt backup socket. Because it goes well beyond 800 watts, it is connected by an electrician and is best suited to owners of larger apartments or penthouses with plenty of panel space.
Before You Order
- Measure the balcony railing or wall and check which way it faces.
- Look at your evening consumption to choose a sensible battery size.
- Agree the mounting with your landlord or owners’ association in writing.
- Plan where the battery unit will stand, close to a socket and protected from the weather.
Your Balcony, Your Power
Anker SOLIX is the energy brand behind the Solarbank range, with plug-in balcony systems, home batteries and portable power stations made for everyday homes. Its balcony sets bring panels, storage and app control together, so apartment residents can make their own solar power and keep it for the evening.
A balcony is now enough to cover part of a household’s daily electricity with sunshine. Whether you start with a compact unit or a full set with bifacial modules, a balcony power plant with battery can grow with you as you add panels and expansion batteries.
Choose your set today and let tomorrow’s sunshine light up tonight. For more ideas on stylish, sustainable city living, take a look around TheVougeClub.
