Can I put solar panels on my balcony?
Yes — since 17 April 2025 plug-and-play solar panels are allowed across Belgium, with a homologated device and, in a flat, the co-ownership's approval. Previously every solar setup had to be hard-wired; since Synergrid rule C10/11 (edition 2.3), a panel with an ordinary plug into a socket is permitted. Conditions: the device is on the official Synergrid plug-and-play list and CE-marked, and total inverter power stays under 800 watts (about two balcony panels). Above 800 W, or if you still have an analogue meter, you must notify your grid operator within 30 days (Fluvius, which then fits a digital meter). You don't need your home wiring re-inspected: a plug-in device counts as an appliance, not a fixed installation. Watch out in a flat: a balcony or façade is usually a common part, so you need the general assembly's (co-ownership) approval to attach panels. In Wallonia you declare via the UP10 form, in Brussels to Sibelga.
📋 The rules
- Allowed since 17 April 2025 across Belgium (Synergrid C10/11, edition 2.3)
- The device must be on the Synergrid plug-and-play list and CE-marked
- Up to 800 W inverter power: no notification with a digital meter
- Above 800 W or with an analogue meter: notify Fluvius within 30 days
- No re-inspection: a plug-in device is an appliance, not a fixed installation
- Flat: balcony/façade is usually common — the co-ownership's approval is needed
🔓 Exceptions
- Wallonia: declaration via the UP10 form and a communicating meter before commissioning
- Brussels: declaration to Sibelga within 30 days of commissioning
- Renting? The co-ownership's approval is not always enough: check with your landlord too before you fix anything to the façade or balcony
⚠️ Penalties & fines
The risk is less a fine than lost benefits. Not notifying a device that needs it (over 800 W or on an analogue meter) means no or delayed feed-in payment, and meanwhile the prosumer tariff is charged on the device's power. A non-homologated or non-CE device is not allowed on the grid at all. Attaching panels to a common façade or balcony without the co-ownership's approval can trigger a demand to remove them — panels you have only just put up. And being in order with Fluvius does not cover you in Wallonia or Brussels: the declaration there is separate.
📎 Official sources
- Fluvius · plug-and-play devices →
- Synergrid · press release C10/11 (17 April 2025) →
- VREG · plug-and-play devices →
- Energie Wallonie · mobile plug&play PV →
❓ Frequently asked
Can I just plug a panel into a socket?
Since 17 April 2025, yes, provided the device is on the Synergrid plug-and-play list and CE-marked. Up to 800 W of inverter power with a digital meter, no notification to the grid operator is even required.
What if I still have an analogue meter?
Then you must notify the device to Fluvius within 30 days, whatever its power. Fluvius fits a digital meter in response; meanwhile the prosumer tariff is charged on the power of your device.
Does my installation need re-inspecting?
No. A plug-in device counts as an appliance, not a change to your fixed installation, so no new inspection is needed. The socket and the circuit behind it must of course still be sound.
I rent or live in a flat — is it allowed?
A balcony or façade is usually a common part, so you need the general assembly's (co-ownership) approval to attach panels. Ask for it first; as a tenant, check with the owner as well before drilling.
What do I do in Wallonia or Brussels?
In Wallonia you declare via the UP10 form and need a communicating meter before commissioning. In Brussels you declare the device to Sibelga within 30 days of putting it into service.
🔎 Common searches
What people search to land here:
- “balcony solar panels allowed belgium”
- “plug and play panel 800 watts”
- “notify fluvius solar”
- “balcony panels flat co-ownership”
- “synergrid plug and play list”
- “prosumer tariff plug in panel”