Motorhome solar systems: power wherever you park

A well-planned solar system is the heart of every self-sufficient motorhome – silent, low-maintenance and free of charge, day after day.

Solar systems

Solar is our core service: we have planned and installed systems on virtually every vehicle type, from campervan to liner. Your leisure battery charges reliably, even when you wild-camp for weeks.

  • Back-contact modules: more yield on limited roof space
  • Victron MPPT controller with Bluetooth – up to 30% more yield
  • Watertight roof entry, wiring to standard
  • Personal briefing at handover
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Solar systems – GNS Reisemobiltechnik

The right size for the way you travel

Weekend trips with a fridge and lights make different demands than overwintering in southern Europe with a laptop, TV and coffee machine. During the consultation we analyse your actual consumption and size the modules, charge controller and battery capacity to match your routine – not the other way around.

"Julians Original" – our proven solar package

Our most requested package: 2 × 120 W back-contact modules (240 W total), a Victron MPPT charge controller with Bluetooth smartphone monitoring, complete mounting kit and professional installation – for €2,095. Featured in the trade press. See the offer →

Installation to current standards

We bond and mount the modules professionally, route cables through the roof with watertight glands, size wiring and fuses correctly and document the whole system – decades of installations without leaks.

GNS

Related services

Lithium batteries

Coffee machine, hairdryer, air conditioning? No problem with LiFePO4 – more energy, half the weight, ten times the lifespan.

Learn more

Inverters & combi units

Socket comfort without a hook-up – with pure sine wave inverters and automatic mains priority switching.

Learn more

Charging & power technology

A solar system and a lithium battery are only as good as the charging technology between them – we plan it as one system.

Learn more
FAQ

Frequently asked questions

How many watts of solar does a motorhome need?

Weekend campers often manage with 120–200 W; if you regularly camp off-grid or travel in winter, plan for 240–400 W plus a matching lithium battery. We calculate your needs from your real consumption.

Does solar charge in winter?

Yes – at reduced yield. Back-contact modules and an MPPT controller extract significantly more in diffuse light than standard technology.

Will the installation damage my roof?

No. We use vehicle-specific bonding and mounting systems and permanently seal every cable entry.

Can I expand the system later?

If we know that during planning, we size the controller and wiring for the target capacity from day one – expanding later then only costs the extra modules.

Ready for true independence on the road?

Call us or send an enquiry – we usually reply within one working day.

Book an appointment +49 2161 466 73 88