Island installations with storage
Island systems with Storage for self-sufficient power supply
Off-grid solar systems with storage from 5,12 kWh to 20,48 kWh – for garden sheds, holiday homes and anywhere there is no grid connection.
SYSTEM STRUCTURE
Four building blocks for your independent power supply
Every 230V off-grid solar power system with storage consists of coordinated components. Here you can see the role of each component.
Solar Panels
High-performance panels convert sunlight into direct current – bifacial modules also efficiently utilize diffuse light on the back.
MPPT charge controller
It intelligently regulates the charging current and gets the maximum out of every ray of sunshine – up to 30% more yield than simple PWM controllers.
LiFePO4-Storage
Stores electricity generated during the day for use in the evening and at night – robust, safe and extremely durable with over 6.000 charging cycles.
hybrid inverter
Converts direct current to 230 V alternating current – pure sine wave for all standard household appliances and sensitive electronics.
FUNCTIONAL PRINCIPLE
From sunlight to household electricity
This is how the solar power in your off-grid solar system with storage passes through all stations until it reaches the socket.
PRACTICE
This is what an off-grid system looks like in everyday use.
A typical off-grid system with storage consists of four compactly arranged components: solar modules on the roof or freestanding, the inverter with integrated MPPT charge controller inside, and the LiFePO4 batteries right next to them.
The wiring complies with DIN VDE standards. During the day, the refrigerator, lighting, and pumps run directly on solar power; excess energy is stored in the battery . In the evening, the battery takes over seamlessly.
- Delivered fully pre-configured
- Safe commissioning by a qualified electrician
- App integration for live monitoring
COMPLETE SETS
Island systems with Storage – order directly and get started
Each set includes solar panels, storage , inverter and accessories – complete and ready to use.
Original price was: €1.099 € 629 Current price is: €629.
Original price was: €1.299 € 939 Current price is: €939.
€ 3.389
Balcony power plant CLASSIC with Jackery HomePower 2000 Ultra storage inverter and 2 solar modules
Original price was: €1.099 € 699 Current price is: €699.
DIMENSIONING
What Memory size Does it fit your project?
Determine the daily electricity consumption of your appliances and use the overview to select the appropriate configuration.
| Application | Daily Consumption | Storage capacity | Module performance |
|---|---|---|---|
| Garden shed with light and shop | 1 to 2 kWh | 3 kWh | 1 kWp |
| Garden shed with refrigerator | 3 to 5 kWh | 7,5 kWh | 2 kWp |
| Holiday home basic services | 5 to 8 kWh | 10 kWh | 3 kWp |
| Full holiday home | 8 to 15 kWh | 20 kWh | 5 kWp |
Island Investment Calculator
Calculate your investment individually
List your specific energy consumers and immediately receive the appropriate PV output, storage size and inverter recommendation – including a suitable PV and SO set.
AREAS OF OPERATION
At home wherever the power grid ends.
From the garden shed to the mountain hut – a PV off-grid solution with storage reliably supplies even remote locations.
garden houses
Light, chilled drinks and mobile phone charging – even a small off-grid system makes your garden shed usable all year round.
From 1 kWp + 3 kWh storage
cottages
Cooking, washing and hot water – with a high-performance off-grid PV system you can live comfortably without a grid connection.
From 5 kWp + 10 kWh storage
Mountain huts & alpine huts
Off-grid power supply in remote locations where a grid connection would cost thousands of euros.
Individual configuration
Motorhomes & Boats
Mobile power supply for on the go – compact systems with 12V or 24V system voltage.
12V / 24V systems available
Tiny Houses
Self-sufficient living without compromise – a PV off-grid solution with storage enables complete independence.
From 3 kWp + 10 kWh storage
Agriculture & Trade
Reliably supplying electricity to outbuildings, stables and workshops – even for high-performance consumers.
48V systems for large installations
YOUR BENEFITS
That's why over 2.900 customers trust PVundSO.
Pre-configured complete sets
All components are factory-matched. You order one package and receive everything you need for immediate commissioning – without any compatibility issues.
Long-lasting LiFePO4 technology
Lithium iron phosphate cells last many times longer than conventional lead-acid batteries and can withstand deep discharge without loss of capacity. The investment pays for itself over the entire lifespan.
Modular expandable
Start small and expand step by step. Additional modules or battery blocks can be added at any time without replacing the existing system.
0% VAT and free shipping
Photovoltaic components are exempt from VAT in Germany. Combined with our free shipping, you get your off-grid system at the best possible price.
ORDER YOUR ONLINE CONSULTATION
We plan your system together with you.
Our electrical engineers analyze daily consumption, module area and solar radiation at your location – and develop a tailored recommendation for the number of modules, storage capacity and inverter power.
Whether standard configuration or special procurement for a remote mountain hut: you will receive a solution that fits your project exactly – free of charge and without obligation.
FREQUENTLY ASKED QUESTIONS
Everything you need to know about off-grid systems with Storage
An island facility with Storage A solar off-grid system is an off-grid photovoltaic system that generates solar power and stores it in batteries. Unlike grid-connected systems, an off-grid solar system operates with Storage Completely self-sufficient and requires no meter connection. The solar panels charge the batteries during the day, while an inverter converts the stored direct current into 230V alternating current.
The usable Storage capacity The calculated daily requirement should be exceeded by at least 50% to cover cloudy days. For a consumption of 5 kWh per day, we recommend 7,5 to 10 kWh. Storage capacityA garden shed with light and a shop only needs 3 kWh, while a fully equipped holiday home requires around 20 kWh.
Lithium iron phosphate (LiFePO4) batteries offer a solution for an off-grid PV system with Storage The best combination of durability and safety. With a depth of discharge of 90% and over 6.000 charge cycles, these cells achieve a service life of 15 to 20 years. Compared to lead-acid batteries, you save around 60% in weight with three times the lifespan.
No, a true off-grid photovoltaic system does not need to be registered with the grid operator. The system operates completely autonomously as an off-grid system and does not feed any electricity into the public grid. Different requirements only apply if grid connection is optional.
Yes, our hybrid systems are modular. You can add additional solar panels or Memory modules Add to that. The hybrid inverters from Sofar and Solis support flexible expansions up to the maximum system capacity. This way, your system grows with your needs.
For an off-grid PV system with Storage System voltages of 12V, 24V, and 48V are available. Higher voltages reduce line losses and allow for thinner cable cross-sections. A 48V system is recommended for systems of 3 kWp and above. Storage solutions compatible with Pylontech or Marstek.
Still unsure? We'll plan your off-grid system with you.
Tell us your location, your energy consumption, and your desired level of energy independence – we'll suggest the right configuration for you. Free of charge and without obligation.
High-quality brand components for your off-grid PV system Storage
PVundSO relies exclusively on proven brand-name products. Solar modules with bifacial TOPCON technology deliver up to 500 W per module and also utilize diffuse light on the back. Lithium iron phosphate batteries from Pylontech and Marstek with over 6.000 charge cycles are available for energy storage. Hybrid inverters from Deye and Solis enable both stand-alone operation and future grid connection.
When assembling your off-grid PV system with storage , you benefit from the expertise of qualified electrical engineers. Each complete set has been configured so that all components are compatible and guarantee a safe installation. This saves you the time-consuming research required to determine the compatibility of individual components.
Generate off-grid electricity with an off-grid system with Storage
A photovoltaic off-grid system with storage is suitable wherever a grid connection is unavailable or economically viable. Garden sheds, holiday cabins, agricultural outbuildings, and motorhomes are among the most common applications. Even a system with 2 kWp module output and 5 kWh storage capacity covers the basic energy needs of a garden shed, including lighting, a refrigerator, and a charging station.
An off-grid PV system with storage operates on a clear principle. During the day, the solar panels charge the batteries, while connected appliances are supplied directly. At night, the storage system provides the stored electricity. An MPPT charge controller achieves up to 30% more energy yield than simple PWM controllers because it continuously adjusts the modules to their optimal operating point.
For larger projects, multiple modules and energy storage systems can be combined. A 5 kWp, 10 kWh off-grid PV system with storage can supply a vacation home with a washing machine, stove, and hot water system. This allows you to reliably cover even higher energy consumption without relying on a grid connection.
Individual consultation for your off-grid solar solution with Storage
Every off-grid solar power system with storage requires careful planning tailored to your specific location and energy consumption. As experienced electrical engineers, we work with you to analyze your expected daily consumption, available module area, and local solar irradiance. Based on this analysis, you will receive a customized recommendation for the number of modules, storage capacity , and inverter output.
In addition to standard configurations, we also offer custom solutions for specific requirements. Whether it's a stand-alone PV system with storage for a remote mountain cabin or a solar power system with storage for a self-sufficient tiny house – we'll find the right configuration. You can contact us by phone, email, or WhatsApp.
All photovoltaic components benefit from 0% VAT and free shipping on orders over €100. Ordered goods can be picked up at our station in Hildesheim. We support you from the initial planning stages to the commissioning of your system and remain available as your contact person even after your purchase.
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