A motorhome solar kit supplies your vehicle with clean solar energy, independent of shore power. The solar panels, either on the roof or in a portable version, convert sunlight into electrical energy. This energy is controlled by a charge controller , which regulates the current flow to the vehicle's battery and protects the battery from overcharging or deep discharging.

The stored energy is then available for all consumers in the vehicle – from the lights to the refrigerator to the laptop.

With an inverter, you can even convert the 12-volt DC voltage of the battery into 230 volts to operate normal household appliances.

A complete set contains all the necessary components – modules, charge controllers, cables, plugs and mounting material – optimally matched for maximum efficiency and easy installation.

To know how much solar power you need, you should realistically estimate your daily energy consumption .

Here's how to do it:

1. List all the devices you use – e.g., lights, refrigerator, mobile phone, laptop, water pump.
2. Note their power output (watts) and usage time (hours per day) .
3. Multiply power × usage time = consumption in watt-hours (Wh) .
4. Add the values ​​together – that gives you your daily consumption.
5. Divide the total by the battery voltage (12 V or 24 V) → Your consumption in ampere-hours (Ah) .

👉 Even easier: Use our solar calculator .

It automatically calculates your individual consumption and shows you which complete motorhome solar kit suits your energy needs – including battery size and recommended module power.

The required solar power depends on several factors:

• Your daily electricity consumption
• The season and sunlight
• The desired self-sufficiency time (how long you want to stand without recharging)

For guidance:

• 200 W is sufficient for basic needs (lights, mobile phone, laptop).
• 400–600 W is suitable for refrigerators, water pumps and longer periods of inactivity.
• From 800 W upwards you are ideally equipped for more energy-intensive devices and longer off-grid stays.

Our tip: Plan for some extra power – that way you're on the safe side even under cloudy skies.

With our solar calculator , you can easily check how much power your motorhome really needs.

Yes – most motorhome solar kits can be installed yourself with a little DIY skill. Our complete kits already include all components and the necessary mounting hardware . However, you should note the following points:

• Cable cross-section & fuses: Always size them appropriately for the current. Use our calculator (link) to calculate your required cable cross-section.
• Mounting: Mount modules securely, vibration-proof and watertight (e.g. with roof penetrations and brackets).
• Connections: Check polarity, make clean crimp connections.
• Charge controller & battery: Place as close together as possible to minimize line losses.

If you are unsure, a quick check by a specialist workshop is recommended – especially for larger systems or 230 V systems.

Both battery types have their advantages – the choice depends on your travel habits and budget:

Lithium (LiFePO₄):

• Up to 50% lighter than AGM
• Higher usable capacity (deeper discharge possible)
• Longer lifespan (up to 3,000–5,000 cycles)
• Faster charging through high current draw
• Ideal for frequent use and self-sufficiency.

AGM battery:

• Cheaper to purchase
• Maintenance-free, reliable
• Good performance for occasional trips

Conclusion: If you travel a lot and want to be self-sufficient for extended periods, a lithium battery is almost always worthwhile in the long run, despite the higher initial costs.

The lifespan depends on the type, use, and care :

• AGM / Gel batteries: approx. 3–5 years , up to 7 years with careful use.
• LiFePO₄ batteries: approx. 10–15 years or up to 5,000 charging cycles .

Ensure longevity:

• Regular recharging, even in winter
• Avoid deep discharges
• For extended periods of inactivity, store the battery in a frost-free location and with a partial charge.

A high-quality battery and an intelligent MPPT charge controller significantly increase the battery life.

In the field of motorhome solar technology, several manufacturers have proven themselves through quality, efficiency and reliability:

• WATTSTUNDE – Complete solutions “Made in Germany” with perfectly matched sets for every vehicle type.
• EcoFlow – Innovative, integrated systems with app control and intelligent energy management.
• Victron Energy – High-quality individual components (controllers, inverters, chargers) with maximum flexibility for individual setups.

All three brands impress with proven safety, high efficiency and excellent service – depending on your needs you will find the right solution here, from entry-level sets to professional systems.

A good complete solar kit can easily be adapted to your needs.

Pay attention to expansion reserves right from the initial installation:

• Charge controller : should be able to handle additional module power.
• Cables & fuses : it's better to size them a little more generously.
• Modules : preferably of the same type and manufacturer, so that voltage and current values ​​match.
• Battery : Expansion possible if the same cell chemistry and capacity are used.

Tip: Plan together with our team – we'll help you design your system to be modular and future-proof.

The topic of balcony power plants in motorhomes is currently appearing more and more frequently – but there are important technical differences.

A classic balcony power plant works with a micro-inverter that feeds the electricity directly into the house grid .

However, motorhomes lack this fixed power grid – the micro-inverter detects this and switches itself off (safety function).

For mobile use, you therefore need an off-grid solar system with charge controller, battery and possibly an inverter – exactly what a complete motorhome solar kit offers.

💡 Exception:

If your motorhome is parked at home and you want to feed the generated electricity into your home network, a balcony power plant can be useful – but then the same regulations apply as for stationary systems (e.g. registration with the network operator, VDE-AR-N 4105).