Brandneu
Entdecke den innovativen Hybrid-Wechselrichter Hyper 2000 von Zendure und die tragbare Backup-Stromversorgungslösung SolarFlow ACE1500.
Our new products
Preorder 28.02.2025
8-01-021415
25 pcs 13cm Elastic Bungee with Hooks 5mm Universal Load Securing for Tarps and Trailer Nets
The universal bungee cords with hooks from Offgridtec are ideal for numerous applications in outdoor activities, household use, and load securing. Wit...
Product is expected to be back in stock on 28 February 2025
Product is expected to be back in stock on 28 February 2025
Preorder 28.02.2025
8-01-021420
25 pcs 15cm Bungee Cord with Hooks 5mm Universal Load Securing for Tarps and Trailer Nets
The universal bungee cords with hooks from Offgridtec are ideal for a variety of applications in the outdoor area, household, and for load securing. W...
Product is expected to be back in stock on 28 February 2025
Product is expected to be back in stock on 28 February 2025
Preorder 28.02.2025
8-01-021425
25 pcs 18cm Bungee Cord with Hooks 5mm Universal Load Securing for Tarps and Trailer Nets
The universal bungee cords with hooks from Offgridtec are ideal for a wide range of applications in outdoor activities, household use, and load securi...
Product is expected to be back in stock on 28 February 2025
Product is expected to be back in stock on 28 February 2025
VAT-exempt delivery possible*
2-43-022040
Anker Solix Solarbank 2 E1600 AC Solarstromspeicher
Die Solarbank 2 E1600 AC von Anker (MPN: A17C2) ist ein 1,6kWh starker Speicher mit einer netzunabhängigen AC-Ausgabe von 1200W. Diesen kannst du mit ...
Shipped in 2-5 days
Shipped in 2-5 days
8-25-022045
Bluetti P090D zu P150D Externes Batterieanschlusskabel B300K Akku an AC500 Powerstation
Mit diesem Bluetti Batterieanschlusskabel (MPN: P090D bis P150D) kannst du die B300 oder B300K Erweiterungsbatterie an deine Bluetti AC500 Power Stati...
Shipped in 1-3 days
Shipped in 1-3 days
New
More versions available
8-01-012542_1er
Dekalin Dekaseal sealant 8936 Black (cartridge) 310ml
310 Milliliter (€41.19* / 1000 Milliliter)
Content: 310 Milliliter (€41.19* / 1000 Milliliter)
Dekaseal 8936 from Dekalin (mpn 6250212) is the classic sealant. The dab-on sealant impresses with its high impermeability, UV resistance, and elastic...
Shipped in 1-3 days
Shipped in 1-3 days
8-29-022055
Growatt ShineMaster-X 4G Überwachungseinheit für MID-XH
Der ShineMaster-X von Growatt (MPN: ShineMaster-X) fungiert als Überwachungseinheit für dein Solar-System, egal ob privat oder gewerblich. Er bietet d...
Shipped in 1-3 days
Shipped in 1-3 days
8-46-020995
Haier InsK-G floor installation kit for Smart Cube battery storage system
The Haier InsK-G Installation Kit (MPN: InsK-G) enables you to install your Smart Cube system on the floor effortlessly and efficiently. All component...
Shipped in 1-3 days
Shipped in 1-3 days
8-46-021000
Haier InsK-W installation kit wall mounting for Smart Cube battery storage system
The Haier InsK-W Installation Kit (MPN: InsK-W) enables you to install your Smart Cube system on the wall effortlessly and efficiently. All components...
Soon available again
Soon available again
8-46-020875
Haier Kommunikationseinheit CommMod-Stick für Smart Cube Energie-Controller
Der SmartCube CommMod-Stick von Haier (MPN: HC-U4G) bietet dir eine schnelle und zuverlässige 4G-Kommunikation zu den hochwertigen Invertern (Energie ...
Shipped in 1-3 days
Shipped in 1-3 days
Zendure MEGA Sparbundles
Benefit from high-quality free products and unbeatable direct discounts compared to individual items!*
🖤🖤Black Friday – Green Energy💚💚
Discover the best deals on balcony power plants, solar systems, batteries, and much more!
BLACKWEEKS24
Sichere dir bis zu -40% auf ausgewählte Artikel in unserem Onlineshop mit dem Code BLACKWEEKS24
Our offers
6,54 %
8-75-011105
AEconversion aedl-lan web-based data logger
The web-based data logger aedl-lan from AEconversion (11-05-500363-1) enables convenient and comprehensive system monitoring. By means of an Ethernet ...
Shipped in 1-3 days
Shipped in 1-3 days
28,54 %
8-75-011120
AEconversion rj45 connector VS-08-rj45-5-Q / ip67-bk
The RJ45 connector vs-08-rj45-5-q/ ip67-bk from AEconversion (mpn 51-05-500008-1) is needed to build up a rs485 communication network. The inverters c...
Shipped in 1-3 days
Shipped in 1-3 days
VAT-exempt delivery possible*
27,73 %
3-11-015000
EcoFlow solar bag 220w foldable solar panel bifacial
The EcoFlow 220w solar bag (mpn EFSOLAR220w) is the perfect complement to the EcoFlow River and Delta powerstations. Featuring a bifacial design with ...
Shipped in 1-3 days
Shipped in 1-3 days
30,02 %
8-66-008170
Mastervolt BI 702-S 70A 12V 24V Heavy-Duty battery separator diode
Mastervolt’s BI battery isolators are based on conventional diode technology. The diode voltage drop (ca. 0.6 V) can be compensated for by adapting th...
Shipped in 1-3 days
Shipped in 1-3 days
15,57 %
8-66-008115
Mastervolt USB Interface for the SCM Charge Controller series
Together with DataControl software for Solar ChargeMaster this USB-interface ensures a faultless communication between your PC and the Solar ChargeMas...
Shipped in 1-3 days
Shipped in 1-3 days
VAT-exempt delivery possible*
More versions available
4-01-017720-001
Offgridtec SolarFlow 1.92kWh 880w hms-800-2t balcony power station with storage unit
A balcony power plant with storage capability? With this system, it's finally possible! An Offgridtec Solar Direct balcony power plant combined with t...
Shipped in 3-6 Werktage
Shipped in 3-6 Werktage
20,31 %
1-67-014445
Phoenix Inverter 12/800 230V VE.Direct IEC 800VA 650W 12V
The Victron Phoenix 12/800 VE.Direct IEC (MPN PIN121801100) is a sine wave inverter with 650W continuous power. It converts 12V DC from your battery i...
Shipped in 1-3 days
Shipped in 1-3 days
10,13 %
8-67-013475-005
Victron Busbars battery switch 275a 48v
Busbars are used for high current distribution and at the same time serve as connections for batteries or DC devices.We offer a range of busbars with ...
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Shipped in 1-3 days
11,77 %
8-15-007510
Votronic 3075 Battery Protector 40A 12V Overvoltage protection
The VOTRONIC units Battery Protector 40 and Battery Protector 100 are connected between supply battery and consumers, and they are suitable for all ty...
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Shipped in 1-3 days
11,03 %
8-15-010225
Votronic® LCD-Battery Computer 100S with Smart-Shunt and Ground Strap 25mm²
The following data are measured, analyzed and displayed:
battery voltage 7 - 32V (internal measurement resolution 0,1V)
allows conclusions about batt...
Shipped in 1-3 days
Shipped in 1-3 days
Offgridtec.com - Your specialist for autarkic power supply and electronics
Solar off-grid + thousands of products for self-sufficient power supply. Solar modules, solar systems, batteries and more directly from Offgridtec.
Photovoltaic island system
- Solar island system
Stand-alone systems such as the photovoltaic stand-alone system or a solar stand-alone system are permanently installed, self-sufficient, off-grid or mobile systems, as well as apparatus and local networks for power supply, which can operate without a connection to a public power grid throughout the country. Such a photovoltaic off-grid system is mainly used when it is not possible to connect to a nationwide power grid. The operation of the stand-alone system is also called islanding.
Both the solar stand-alone system and the photovoltaic stand-alone system are in stand-alone mode. These supply themselves with energy exclusively on their own and cannot be compared with the on-board power supply system of means of transport. If an auxiliary energy source is available for a power failure and longer standstill of the engine, an on-board network can also operate temporarily in island mode just like all other systems with a mains connection. In most of Europe there is a very large, dense and reliable power grid. As a result, the island systems here are mostly just technical devices with very little power consumption. In addition, the wiring of these devices is enormously costly, which leads to the use of self-supply, for example with solar modules. Applications include, for example, pasture fences, toll control bridges or simple parking ticket machines.
Supply of mains AC voltage by means of a photovoltaic stand-alone system & a solar stand-alone system
If the power consumption is very high, so-called gasoline engines or diesel engines with coupled generators are used. These allow for a standard national grid voltage. However, these permanently installed diesel power plants and diesel gensets do not function for very long. After only about two years, the engine needs to be overhauled. Furthermore, they have a poorer efficiency than coal-fired power plants, which is especially the case when the load is very high. A good example of this is a large event with an enormous demand for electricity or a remote gas station and a small settlement. These diesel gensets are even used by the fire department and the German armed forces. But even with island systems, a relatively constant frequency of 50 or 60 Hertz is necessary to guarantee a reasonable supply of mains AC voltage designed devices. This can only be achieved by direct current sources such as solar modules, accumulators and the speed control of the generator in combination with an inverter. Applications include toll control bridges or simple parking ticket machines.
Regenerative energies with the help of the photovoltaic island system and the solar island system Regenerative energies as e.g. with a solar island system become more and more economical thanks to falling costs and rising system prices for fuels. The choice depends on the offer, i.e. wave energy for the sea sign, wind generator for the sailing yacht, water power for some mountain hut and solar modules for the mobile home. Furthermore, the power requirement plays a major role, so a photovoltaic system in the MW range is significantly more expensive than a wind turbine.
Accumulators can also be used to bridge low-yield phases with unfortunately low power requirements and for a very short time. A good alternative is operation with biogas or a combination with combustion engines. This is also called a hybrid system. For certain devices, a voltage converter from 12V to 230V is required for connection to a solar system. A special solar battery is recommended for storing the electricity.
