Solar systems and charge controllers for motorhomes
Sustainable energy for greater independence on the road
Perfectly coordinated components for generating, storing and efficiently using solar energy
Solar systems support the power supply in motorhomes when no mains power is available. Solar modules convert sunlight into electrical energy. A compatible solar charge controller manages the charging process and charges the on-board battery according to the appropriate charging profile.
AL-KO VT offers rigid and flexible solar modules in various output classes as well as PWM and MPPT solar charge controllers. The range is rounded off with pre-configured solar kits, displays and accessories for installation. Which components are suitable depends, among other things, on module voltage, output, battery type and the existing on-board network.
Which solar system suits your motorhome?
From compact solar modules to high-performance MPPT charge controllers – find the right solution for your energy needs
Every motorhome has different requirements for its energy supply. While a compact solar system is often sufficient for occasionally used vehicles, vehicles with higher energy demands benefit from more powerful modules, intelligent MPPT solar charge controllers, and a perfectly matched overall system solution.
AL-KO VT offers solar modules in various designs and output classes – from space-saving slim models and flexible modules to highly efficient back contact and TOPCon modules. The range is rounded off with pre-configured solar kits, suitable mounting and installation accessories, as well as PWM and MPPT solar charge controllers.
PWM charge controllers are particularly suitable for applications with lower power requirements. MPPT charge controllers, on the other hand, continuously determine the solar module’s optimal operating point and can therefore use the available solar power more efficiently to charge the battery. This makes them particularly suitable for higher performance solar systems and more demanding energy requirements.
This way you will find the right solution for almost any vehicle and application – whether for retrofitting or initial installation.
Complete solar kits
Perfectly coordinated solutions from a single source
AL-KO VT complete solar kits offer an easy way to sustainably enhance your motorhome's power supply. The pre-configured systems combine components that are perfectly matched to each other, simplifying both selection and installation. Supplemented by suitable mounting and installation accessories, you’ll get a reliable solution for efficient use of solar energy – ideal for retrofits and new vehicle concepts.
Photovoltaic modules
Efficient energy from sunlight
AL-KO VT solar modules reliably convert solar energy into electrical energy and provide the basis for an independent power supply in your motorhome. The product range includes rigid and flexible modules in various output levels and designs – from space-saving slim versions to highly efficient back contact and TopCon modules. This means you will find the right solution for different vehicle sizes and energy requirements. All solar modules impress with high-quality materials, outstanding weather resistance, and reliable energy generation.
Solar charge controllers
Maximum energy yield for your on-board battery
Solar charge controllers manage the charging process between the solar module and the on-board battery. They limit voltage and charging current according to the selected charging profile and protect the battery from overcharging. Additional protective functions, such as reverse polarity protection, short-circuit protection or deep discharge protection, depend on the respective model. Before selection, module voltage, module output, battery type and system voltage must be checked against the controller’s technical data.
Solar charge displays and charging systems
Monitor energy output and supplement solar systems as required
Solar charge displays provide greater transparency on the energy generation of the solar system and give clear access to relevant charging process information. This allows you to conveniently keep an eye on the solar energy supply of your recreational vehicle. The solar charge display is intended for use with the approved solar charge controllers PRS300, PBS90 and PRM350.
Additional charging systems expand the possibilities of the solar system and support demand-oriented energy supply. Together with solar modules and suitable charge controllers, the components can be chosen to suit the existing on-board network and individual requirements.
Maximum output thanks to perfectly matched components
The interaction between solar module, charge controller and on-board battery determines system efficiency
A high-performance solar system is made up of more than just a solar module. Only the coordination between solar module, solar charge controller and on-board battery ensures that the generated energy is used efficiently and stored reliably. Make sure that all components are ideally matched in terms of output, battery type and area of application. This ensures high energy yield, reliable 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 manages charging and charges the on-board battery according to the appropriate charging profile. For installation, you also need suitable cables, fuses, mounting elements and professional roof lead-through. Displays or networked systems can provide additional information on energy yield and battery status.
A PWM charge controller largely connects the solar module to the battery voltage level during charging. It is suitable for correspondingly designed, simpler 12-volt systems. An MPPT charge controller constantly determines the ideal operating point of the solar module and converts the available output to the required battery level. This allows it to make better use of the available module output, especially when there are greater voltage differences.
The right solar solution depends on your individual energy requirements, vehicle size and travel habits. Compact solar modules are often sufficient for low energy consumption. For higher energy demand or longer periods without mains power, a more powerful combination of solar modules, MPPT charge controller and a suitably sized on-board battery is recommended.
A solar system is especially worthwhile if you frequently travel without a mains connection. It charges the on-board battery continuously during the day and reliably supplies energy to electrical consumers. This increases self-sufficiency and reduces the need for external power sources.
Yes. Many motorhomes can be retrofitted with a solar system. Before installation, the available roof area, roof load capacity, cable routing, waterproofing and compatibility with the existing on-board network must be checked. Solar module, charge controller and battery must be compatible in terms of voltage, output and charging profile. The installation should be carried out by a qualified specialist workshop.
Depending on the charge controller, solar systems can be operated with lead, gel, AGM or lithium batteries. What matters is that the solar charge controller and battery are compatible and support the appropriate charging profile. This ensures the battery is charged optimally and its service life is extended.
Yes. A solar charge controller is an essential part of every solar system. It regulates the energy flow between the solar module and the on-board battery, protects the battery from overcharging and ensures a safe and efficient charging process.