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Pierre M.Tournai
Solar · Balcony panel
Balcony solar panel: solar you simply plug in, no major works
One or more panels with a built-in micro-inverter, mounted on the railing, the wall or the ground, plugged into a secure socket. The power produced feeds your running appliances directly — fridge, router, standby loads — and brings your bill down. The accessible solution when you rent or live in an apartment with no usable roof.
- 300–800 Wp
- typical output
- 1 to 4 panels
- depending on the balcony
- Direct self-use
- consumed on the spot
Plug & playplug it in, it produces
Renters & apartmentsno major works
Technical specs
What a balcony panel is really worth
The concrete figures of a plug & play solar kit installed by the book. Honest numbers, at the scale of a balcony, not a full roof.
- Output 300–800 Wp peak
A balcony kit typically combines 1 to 4 panels for 300 to 800 Wp. Enough to cover a home’s baseline draw — appliances on standby, fridge, internet router, charging — during daylight hours.
- Connection Via a socket
The built-in micro-inverter converts the current to 230 V and feeds it through a dedicated, secure socket. In most cases no panel board needs opening: you plug in, the kit synchronises and produces.
- Production Daytime
Production follows the sun: peaking at midday, nil at night. Yield depends on the orientation and tilt of the railing — a clear, south-facing balcony gets the most out of the kit.
- Mounting Railing / wall / ground
Tilted brackets for guardrails, wall mounts or weighted ground feet: the kit adapts to the balcony, terrace or small garden. Reversible install, ideal for renters.
- Meter Smart meter advised
With a smart (dual-flow) meter, the surplus you don’t consume isn’t paid for but isn’t penalised either. We size the kit to stay below your daytime baseline consumption.
- Safety & standards Synergrid declaration
The micro-inverter is compliant and anti-islanding (it cuts out if the grid fails). A declaration to the grid operator (Synergrid) is required. We check the per-phase power limit of your installation.
* Indicative values for an entry-level plug & play balcony kit. Actual production depends on orientation, shading and your consumption profile — clarified together.
In full transparency
Balcony panel: benefits & limits
The balcony kit opens up solar to those with no roof. Here, honestly, is where it shines and where it hits its limits.
Where it shines
- Affordable and reversibleSmall budget, install with no major works, removable when you move out — made for renters.
- No roof requiredFits an apartment, a balcony, a terrace or a wall, where a conventional installation is impossible.
- Immediate self-consumptionThe power produced feeds your running appliances directly: every solar watt is a watt you don’t buy.
- Quick to commissionMount it, plug it into a secure socket, declare it: up and running in half a day.
What to keep in mind
- More modest returnsOutput stays low: the savings are real but nowhere near those of a full roof.
- No meaningful resaleDaytime surplus isn’t paid for: the whole point is to consume the output on the spot, as the sun produces it.
- Daytime production onlyNo production at night or in very overcast weather; without a battery, nothing is stored for the evening.
- A regulatory framework to respectGrid declaration, per-phase power limit and possible approval from the building manager or landlord.
For which project
Is the balcony panel right for you?
It’s for anyone who wants to produce a little of their own electricity without being able to fit out a roof. A few typical cases:
-
Renter or apartment
With no roof of your own and no major works possible, the balcony kit is often the only way into solar. Removable when you move out.
-
Small budget, first step
To try self-consumption without spending thousands, a single panel already trims the home’s daytime baseline draw.
-
No usable roof
North-facing, shaded, jointly-owned or listed roof: a well-exposed balcony or wall still lets you produce.
More surface, or storing for the evening?
If you have a roof, the complete solar kit offers far better returns. And to consume your output after sunset, look at the solar battery.
Glissez la poignée pour comparer
Real case · apartment, Liège
Two panels on a railing to cover the baseline load
A renter in a south-facing apartment couldn’t touch the roof. We mounted two 400 Wp panels with a built-in micro-inverter on the railing, wired to a secure socket and declared to the grid operator. Daytime production feeds the fridge, router and standby loads directly.
- 800 Wpinstalled on the balcony
- ≈ 15%off the bill
- 1/2 dayto install, no works
Customer reviews
They chose wendows
5.0/5 · 1verified reviews
Compare the options
Balcony panel, or another solution?
The balcony kit wins on accessibility and simplicity. Compare it with the complete solar kit and the micro-inverter, then open the solution that suits you.
| Critère | Balcony panelVous êtes ici | Solar kitVoir la gamme → | Micro-inverterVoir la gamme → |
|---|---|---|---|
| Indicative price | The gentlest | €€€ — investment | € — component only |
| Output | 300–800 Wp | 3–10 kWp | Per panel |
| Installation | Plug & play | Roof mounting | Built into the panel |
| Roof required | No | Yes | Depends on the installation |
| Returns | Modest | The best | Optimises yield |
| Reversible | Yes, removable | Fixed installation | Depends on setup |
| Ideal for | Renters, apartments | Homeowners, house | Shaded roofs |
Indicative benchmarks for common solutions. The right choice depends on your home and your consumption — we fine-tune it together.
- vs balcony
Complete solar kit
For a roof of your own: far more output and the best long-term returns.
Compare with the kit → - to choose
Panel types
Monocrystalline, bifacial, flexible: understand the technologies to choose the right balcony panel.
See the types → - the heart of the kit
Micro-inverter
It’s what converts and secures the current. See how it works in a plug & play kit.
Discover the micro-inverter → - to combine
Solar battery
To consume your solar output in the evening rather than lose it. The complement to daytime production.
See the battery → - budget
Personalised quote
Which kit for your balcony, at what price and with what expected savings? We cost it all for free.
Request a quote → - ↑ category
All things solar
An overview of our photovoltaic solutions in Belgium: kits, panels, inverters and storage.
Back to the solar guide →
Indicative price 2026
How much does a balcony solar panel cost?
The price depends on the number of panels, the output and the mounting system. It’s the entry point to solar: an accessible budget for real but measured savings. Here are benchmarks for an installed kit.
See our balcony kits and their prices →* Indicative ranges for an installed plug & play balcony kit, excluding specific configurations. Itemised estimate at your free quote.
- 1-panel kit from €350300–400 Wp, built-in micro-inverter
- 2-panel kit from €650600–800 Wp, mounting included
- Railing bracket from €60per panel, tiltable
- Reduced VAT 6%home over 10 years old
Balcony panel FAQ
Your questions about the balcony panel
Can I really plug a panel into a socket? +
Yes: the built-in micro-inverter converts the current to 230 V and feeds it through a dedicated, secure socket. The system is anti-islanding, meaning it automatically shuts off if the grid goes down. We still check the circuit and the per-phase power limit before commissioning.
Is it worthwhile if I’m a renter? +
That’s its ideal audience. The kit mounts without drilling into the structure (weighted supports or railing clamps) and comes off when you move out. The landlord’s or building manager’s approval may be required depending on the co-ownership rules, but the installation stays reversible.
How much will I save? +
It all depends on orientation and your daytime consumption. A well-exposed 600 to 800 Wp kit covers the daytime baseline draw (fridge, router, standby) and brings the bill down by around 10 to 20%. The saving is more modest than a roof, but so is the investment.
Is a declaration required in Belgium? +
Yes. Any production connected to the grid must be declared to the distribution grid operator under Synergrid rules. Power is also capped per phase. We file this declaration for you and size the kit to stay compliant.
What happens to the electricity I don’t consume? +
The surplus not consumed instantly isn’t paid for financially, especially with a smart meter. The whole point of the balcony kit is therefore direct self-consumption: we size it to stay below your baseline draw, so everything is used on the spot.
And at night or in bad weather? +
A balcony panel only produces during the day and far less under heavy cloud: at night it produces nothing. Without a battery, nothing is stored for the evening. To enjoy the energy after sunset, you need to add a solar battery.
Get your free balcony panel quote within 48h
Advice on the right kit, mounting suited to your balcony and grid declaration handled. Describe your project in under a minute.
- Free and no obligation
- Synergrid declaration taken care of
- Plug & play install by our teams