Home-Solar made easy to install yourself
System & Components
How it works
The balcony solar system, with or without battery, is directly connected to a 230V socket (a regular home socket). A maximum of 2 standard solar panels (400 Watt each) can be installed, offering a total output of 800W (which corresponds to the power usage of several common household appliances).
Joule provides the complete PV system:
Solar Panels
They capture sunlight and convert it into electricity.
Battery Storage (optional)
Stores excess energy so you can use it at night or when the sun isn’t shining.
Inverter
Converts the solar energy into usable electricity for your home.
Control App
Lets you monitor your system’s performance in real time.
Benefits
What are my key advantages?
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Increased energy independence
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Electricity bill reduction
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Quick return on investment, your PV system pays for itself in just a few years
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Active contribution to the energy transition and climate protection
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Increase property value
Next steps
What are my next steps?
Step 1
Contact us
Get in touch with us and receive a first estimate of your system’s potential.
Step 2
Request a free consultation
Tell us a bit more about your home and energy needs, so we can assess your balcony and installation conditions accurately.
Step 3
Joule designs your ideal system
Our experts create a custom solution.
Step 4
Receive your offer
You get a clear and transparent proposal from joule.
Step 5
Installation by your own
You can install the system yourself, following our clear step-by-step guidance and instructions.
Step 6
Start producing your own green energy
Monitor your system in real-time with the app and enjoy lower electricity bills from day one.
Premium components.
Guaranteed performance.
At Joule, we only work with trusted, high quality manufacturers. Our partners deliver cutting-edge technology and reliable performance, from compact solar panels and microinverters to optional batteries and balcony mounting systems. Everything is optimized for safe and efficient plug-and-play use.
With Joule, you benefit from a carefully selected mix of innovation, durability, and strong warranties.
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High quality manufacturers.
Our brands
Why should I buy my balcony solar system from Joule?
Choosing the right partner for your solar balcony solar system is key.
Joule is local and we know the Luxembourg market
As a Luxembourg-based company, joule understand the local regulations, grid requirements, and subsidy programs. We speak your language.
Install it yourself with our support
Our step-by-step guides and expert assistance make self-installation simple and safe. You handle the setup – we’ve got your back with professional advice whenever needed.
Full Transparency – Anytime, Anywhere
With the Joule app, you can monitor your Solar production, savings, and battery status anytime, from anywhere.