Solar systems and charge controllers for motorhomes
Sustainable energy for greater independence on the move
Perfectly coordinated components for the generation, storage and efficient use of solar energy
Solar systems support the power supply in motorhomes when no mains supply is available. Solar modules convert sunlight into electrical energy. A compatible solar charge controller regulates the charging process and charges the leisure battery according to the appropriate charging profile.
AL-KO VT offers both rigid and flexible solar modules in a range of outputs, as well as PWM and MPPT solar charge controllers. The range is completed by pre-configured solar kits, displays and installation accessories. Which components are compatible depends on factors including module voltage, output, battery type and the existing onboard network.
Which solar system is right for your motorhome?
From compact solar modules to high-performance MPPT charge controllers – find the right solution to meet your energy requirements.
Every motorhome has different requirements when it comes to energy supply. While a compact solar system is often sufficient for occasional trips, vehicles with higher energy demands benefit from more powerful modules, intelligent MPPT solar charge controllers and an optimally coordinated system solution.
AL-KO VT offers solar modules in various designs and output classes – ranging from space-saving slim models, flexible modules to highly efficient Back Contact and TOPCon modules. The range is complemented by pre-configured solar kits, suitable mounting and installation accessories and PWM and MPPT solar charge controllers.
PWM charge controllers are particularly suitable for applications with lower power demand. MPPT charge controllers, on the other hand, continuously determine the optimal operating point of the solar module, enabling more efficient use of the available solar energy to charge the battery. They are therefore especially recommended for more powerful solar installations and higher energy requirements.
This means you will find the right solution for almost every vehicle and application – whether for retrofitting or as original equipment.
Solar Complete Kits
Fully coordinated solutions from a single source
AL-KO VT solar complete kits provide an easy way to sustainably expand your motorhome’s power supply. The pre-configured systems combine perfectly matched components to simplify both selection and installation. Augmented by suitable mounting and installation accessories, you have a reliable solution for efficient use of solar energy – ideal for both retrofitting and new vehicle concepts.
Photovoltaic Modules
Efficient energy from sunlight
The AL-KO VT solar modules reliably convert solar energy into electrical energy, forming the basis for an independent power supply in your motorhome. The range comprises both rigid and flexible modules in a variety of outputs and designs – from space-saving slim models to highly efficient Back Contact and TopCon modules. This ensures you find the ideal solution for different vehicle sizes and energy needs. All solar modules stand out for their high-quality materials, excellent weather resistance and reliable energy production.
Solar Charge Controllers
Maximum energy yield for your leisure battery
Solar charge controllers regulate the charging process between the solar module and the leisure battery. They limit voltage and charging current in line with the selected charging profile and protect the battery from overcharging. Further protection features such as reverse polarity, short circuit or deep discharge protection depend on the specific model. Before making a selection, module voltage, module power, battery type and system voltage must be matched with the technical specifications of the controller.
Solar Charge Displays and Charging Systems
Monitor energy yield and supplement your solar system as required
Solar charge displays provide greater transparency on the energy generation of the solar installation, giving you a clear overview of all key information about the charging process. This allows you to monitor the solar power supply of your recreational vehicle with ease. The solar charge display is intended for use with the approved solar charge controllers PRS300, PBS90 and PRM350.
Additional charging systems broaden the possibilities of your solar installation and support a demand-based energy supply. Together with solar modules and suitable charge controllers, you can select the right components for your existing onboard network and personal requirements.
Maximum performance through perfectly matched components
The interplay between solar module, charge controller and leisure battery determines overall system efficiency
A high-performance solar installation consists of more than just a solar module. Only the interaction of solar module, solar charge controller and leisure battery ensures that the energy generated is used efficiently and stored reliably. Make sure that all components are properly matched in terms of output, battery type and area of use. This way, you benefit from maximum energy yield, a dependable power supply and a long service life for your solar system.
Frequently asked questions about solar systems and charge controllers
A solar module converts sunlight into electrical energy. The solar charge controller regulates the charging process and charges the leisure battery according to the intended charging profile. The installation also requires suitable cables, fuses, mounting elements and a proper roof feed-through. Displays or networked systems can provide additional information on energy yield and battery status.
A PWM charge controller largely connects the solar module directly to the battery’s voltage level during charging. It is suitable for appropriately designed, simpler 12-volt systems. An MPPT charge controller continuously determines the optimum operating point of the solar module and adapts the available output to the required battery level. As a result, it can make better use of the available module output, especially in the case of greater voltage differences.
The suitable solar solution depends on your individual energy requirements, vehicle size and travel habits. For lower electricity needs, compact solar modules are often sufficient. When higher energy demand or longer periods without mains supply are expected, a more powerful combination of solar modules, MPPT charge controller and an appropriately sized leisure battery is advisable.
A solar installation is especially worthwhile if you regularly travel independently of a mains power connection. It continuously recharges the leisure battery during the day and reliably supplies electrical consumers with energy. This increases your autonomy and reduces the need for external power sources.
Yes. Many motorhomes can be retrofitted with a solar system. Before installation, you should check the available roof area, roof load capacity, cable routing, sealing and compatibility with the existing onboard network. The solar module, charge controller and battery must be matched in terms of voltage, output and charging profile. Installation should be carried out by a qualified specialist workshop.
Depending on the charge controller, solar systems can be operated with lead-acid, gel, AGM or lithium batteries. It is essential that the solar charge controller and battery are compatible and support the correct charging profile. This ensures the battery is optimally charged and its service life is maximised.
Yes. A solar charge controller is an indispensable part of any solar system. It regulates the flow of energy between the solar module and the leisure battery, protects the battery from overcharging, and ensures safe and efficient charging.