« Devis clair, sans surprise, primes comprises. Un seul interlocuteur du début à la fin. Je recommande sans hésiter pour le photovoltaïque. »
Pierre M.Tournai
Solar panels · Complete kit
Turnkey solar kit: panels, inverter and installation — all included
A solar kit is the complete installation sized for your consumption: panels, inverter, wiring, roof mounting and commissioning by our teams. You plug in, you produce. The rest — paperwork, incentives, grid connection — we handle it.
- 3 → 12 kWp
- common outputs
- 5–7 years
- return on investment
- All-inclusive
- hardware + installation + paperwork
3 to 12 kWpto suit your usage
Pays off in 5–7 yearsafter incentives
What’s in a kit
What does a wendows solar kit include?
A kit is a coherent set sized for your roof and your consumption. Every element counts.
- Panels Mono N-type
Latest-generation monocrystalline panels (400–430 Wp), black, high efficiency. The number is calculated from your annual consumption and the available surface.
- Inverter String or micro
String (central) inverter for simple roofs, micro-inverters for complex or shaded configurations. We pick the one best suited to your roof.
- Mounting Custom-fit
Mounting system tailored to your roof covering: tiles, slate, flat roof (ballasted), zinc or EPDM. No leaks, guaranteed.
- Wiring & protection Up to code
Solar cables, connectors, breakers and earthing compliant with the RGIE. Compliance check included.
- Monitoring App included
Real-time production tracking via the manufacturer’s app. You see what your panels produce, consume and inject.
- Paperwork We manage it
DSO declaration, incentive applications, meter connection: we take care of the administrative steps for you.
* Indicative contents of a standard kit. The exact make-up is tailored to your roof and your consumption during the survey.
In full transparency
Solar kit: benefits & limits
Solar isn’t for every roof. Here, honestly, is when a kit pays off and when it’s worth thinking twice.
Where it shines
- Pays off in 5–7 yearsOnce amortised, the electricity produced is free for 20 years and more.
- All-inclusive, no surprisesHardware, installation, paperwork and incentives handled by a single point of contact.
- Protection against rising pricesEvery kWh produced is a kWh not bought at the grid tariff.
- ScalableYou can add a battery or extra panels later on.
What you should know
- Upfront investmentEven with incentives, you need to put up the capital — financing available.
- Roof to checkA north orientation, dense shading or a roof in poor condition can limit the payback.
- Prosumer tariff in WalloniaThe prosumer tariff reduces the gain on injection; self-consumption offsets it.
- Seasonal productionMore production in summer than in winter — a battery smooths the difference.
For which profile
Is a solar kit right for you?
Solar is worthwhile for the majority of Belgian households. A few profiles where it shines especially:
-
Family with high consumption
The more you consume, the more worthwhile solar is. A family of 4 using 4,000–6,000 kWh/year quickly pays off a 5–8 kWp kit.
-
Electric vehicle
An EV raises your consumption by 2,000–3,000 kWh/year. Solar offsets it and a smart charger tops up with the surplus.
-
Heat pump
A heat pump uses electricity. Pairing panels and a heat pump cuts your overall energy bill and maximises self-consumption.
With or without a battery?
A kit without a battery is simpler and more cost-effective to start with. Add a battery later if your consumption profile justifies it (evening use, prosumer tariff). We size both together.
Glissez la poignée pour comparer
Real case · family home, Walloon Brabant
A 6 kWp kit installed in a day, paid off in 6 years
A family of 4 using 5,200 kWh/year. We installed a 6 kWp kit (14 N-type panels + string inverter) on their south-facing roof in a single day. After incentives and 6% VAT, the return on investment is calculated at 6 years. After that, 20 years of near-free electricity.
- 6 kWpinstalled in 1 day
- ~5,700 kWhof annual production
- 6 yearsreturn on investment
Customer reviews
They chose wendows
5.0/5 · 1verified reviews
Compare the packages
Standard kit, kit + battery or kit + charger?
The basic kit is the most cost-effective. The options (battery, charger) add comfort and self-consumption.
| Critère | Standard kitVous êtes ici | Kit + batteryVoir la gamme → | Kit + EV chargerVoir la gamme → |
|---|---|---|---|
| Payback | The fastest | Slower (battery premium) | Fast (kWh vs fuel) |
| Self-consumption | 30–40% | 60–80% | 50–70% |
| Independence | Grid-dependent | Backup possible | Grid-dependent |
| Investment | The gentlest | +€4,000–9,000 | +€800–2,000 |
| Electric mobility | No | No | Yes, solar surplus |
| Complexity | Simple | Hybrid inverter | Smart charger |
| Ideal for | Getting started, tight budget | Evening use, independence | EV, solar charging |
Indicative benchmarks. The optimal sizing depends on your consumption and your equipment — we fine-tune it at the survey.
- the tech
Panel types
Mono P-type, N-type, bifacial: which technology for your kit.
Compare the types → - the brain
Inverter
String, micro or hybrid: the inverter suited to your configuration.
See the inverters → - to add
Battery
Store the surplus for the evening and boost your self-consumption.
See the batteries → - to pair with
EV charger
Charge your EV with the solar surplus thanks to a smart charger.
See the chargers → - prerequisite
Solar roof
Check that your roof is suitable: orientation, pitch, shading.
Check my roof → - ↑ category
All things photovoltaic
An overview of our solar panels in Belgium: production, inverters, batteries and incentives.
Back to the solar guide →
Indicative price 2026
How much does a solar kit cost?
The price depends on the output, the type of inverter and the roof. Here are some benchmarks for installed hardware, before incentives.
See detailed prices & payback →* Indicative ranges for installed hardware, before incentives. Costed estimate during your free quote.
- 3 kWp kit (small) €4,000–6,0007–8 panels, installed
- 6 kWp kit (standard) €6,000–9,00014–15 panels, installed
- 10 kWp kit (large) €9,000–13,00023–25 panels, installed
- Reduced VAT 6%for renovation (home > 10 years old)
Solar kit FAQ
Your questions about solar kits
What size of kit do I need? +
We size it to your annual consumption. For an average Belgian household (~4,000 kWh/year), a 4–6 kWp kit is enough. With an EV or a heat pump, we go up to 8–12 kWp. The precise calculation is done at the survey.
How long does the installation take? +
A standard residential kit is installed in a day. Complex configurations (flat roof, multi-pitch) can take two days. No structural work and no nuisance for the neighbours.
Is the kit worthwhile with the prosumer tariff? +
Yes. The prosumer tariff reduces the gain on grid injection, but self-consumption (using what you produce) remains very worthwhile. We optimise the sizing to maximise self-consumption.
Can I add a battery later? +
Absolutely. The standard kit works without a battery. If your profile changes (EV, evening use, prosumer tariff), we add a battery and a hybrid inverter at any time.
Who handles the administrative steps? +
We do. Declaration to the grid operator, incentive application, RGIE compliance check — it’s all included in the kit. All you have to do is sign.
What warranty applies to a solar kit? +
Panel warranty: 25–30 years (linear production). Inverter warranty: 10–25 years depending on the model. Installation warranty: 10 years. The hardware is covered, the production is guaranteed.
Get your free solar kit quote within 48h
Free roof assessment, precise sizing, incentives calculated. Describe your project in under a minute.
- Free and no obligation
- Sized to your actual consumption
- Installed by our certified fitters