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BLACKWEEKS24

Apply the coupon code now and save 15% on balcony power plants as well as up to 40% on other selected products.

Anker All-in-One Solutions

Discover the balcony power station storage units of the SOLIX 2 series now.

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New from Zendure

Discover the innovative Hyper 2000 hybrid inverter  and the portable backup power solution SolarFlow ACE1500.

Our new products

New
3-IN-1 Multitool ND2L 8800mAh - Reifenpumpe+KFZ-Starthilfe+Powerbank
€124.00*

Das 3-IN-1 Multifunktionsgerät von Offgridtec (MPN: 020560) ist der perfekte Allrounder für deine Ausflüge. Die Gerätekombination ...

Soon available again

Soon available again

VAT-exempt delivery possible*
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New
More versions available
Anker 3,2kWh 1800W Balkonkraftwerk inkl. Speicher SOLIX 2 E1600 PRO & smarten Stromzähler
Variants from €1,714.87*
€2,342.27* €1,968.29**

Das 1800W starke Balkonkraftwerk-Komplettpaket mit Anker SOLIX PRO Speichern (MPN 021940) bietet dir eine hervorragende Möglichkeit, einen T...

Shipped in 2-5 days

Shipped in 2-5 days

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Anker 9,6kWh 900W Balkonkraftwerk inkl. Speicher SOLIX 2 E1600 PLUS & smarten Stromzähler
Variants from €1,432.21*
€4,484.24* €3,768.27**

Das 900W starke Balkonkraftwerk-Komplettpaket  mit Anker SOLIX PLUS Speichern (MPN 021945) bietet dir eine hervorragende Möglichke...

Shipped in 2-5 days

Shipped in 2-5 days

VAT-exempt delivery possible*
Preorder 29.11.2024
New
Bluetti B300K Erweiterungsakku 2764Wh für AC200 AC300 AC500
€1,020.31* €857.40**

Der Bluetti B300K Erweiterungsakku (MPN B300K) ist die ideale Lösung, um deine Energieversorgung flexibel zu erweitern. Mit einer&...

Product is expected to be back in stock on 29 November 2024

Product is expected to be back in stock on 29 November 2024

New
Hoymiles MS-A2 2,24kWh LifePO4 Balkonkraftwerkspeicher AC gekoppelt
€1,188.81*

Der Mikro-Speicher MS-A2 von Hoymiles (MPN: CV120001) ist die weltweit erste AC-Gekoppelte Lösung für dein Balkonkraftwerk. Die eingeba...

Shipped in 2-5 days

Shipped in 2-5 days

New
Hoymiles MS-A2 Speichersystem Wandhalterung
€29.75*

Die Hoymiles MS-A2 Wandhalterung (MPN: 40130016) bietet dir eine sichere und platzsparende Lösung zur Montage deines MS-A2 Balkonkraftw...

Shipped in 1-3 days

Shipped in 1-3 days

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New
Kemo m204 power controller 230 v, max. 16 a for heaters
€32.14*

The Kemo m204 (mpn m204) is a 230v power controller with max. 16a for heaters. It controls one additional interference suppression requirement for res...

Shipped in 1-3 days

Shipped in 1-3 days

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New
Kemo m241 vibration switch 12v dc
€18.09*

The Kemo m241 vibration switch switches 12v devices off in the event of vibrations (e.g. motor running noise) and switches them on with a time delay w...

Shipped in 1-3 days

Shipped in 1-3 days

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New
KEMO Rain Sensor 12V
€40.28*

If the sensor plate gets into contact with rain or slushy snow / hail, it switches on a relay. Sun blinds may be retracted with that, skylights may be...

Shipped in 1-3 days

Shipped in 1-3 days

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New
myStrom WiFi Switch Ex (Wieland)
€69.72*

The WiFi Switch Ex from myStrom(MPN myslpqss1) was specially developed for mini PV applications. Track exactly how much electricity your solar panel i...

Soon available again

Soon available again

Blognews

/ FROM - November 16, 2024

BLACKWEEKS24

Sichere dir bis zu -40% auf ausgewählte Artikel in unserem Onlineshop mit dem Code BLACKWEEKS24
/ FROM - June 28, 2024

Anker All-in-One Lösungen

Entdecke die innovativen All-in-One Balkonkraftwerk-Speicher von Anker inkl. Erweiterungsbatterie und smartem Stromzähler
/ FROM - June 1, 2024

Starte jetzt dein Solarprojekt!

Ab sofort bieten wir im Umkreis von ca. 50 km um 84307 Eggenfelden Vor-Ort-Beratung sowie Installation und Montage an.

we advise, we assemble, we install

Individual energy solutions tailored to your needs and desires within 50 km around Eggenfelden

Our offers

BLACKWEEKS24
21,58 %
More versions available
2 pcs. USB Charger Extra Flat Power Supply Dual Port usb-a usb-c White 20w
Variants from €14.90*
€16.39* €20.90* (21.58% saved)

Discover the extra flat USB charger from Offgridtec in a practical twin pack, each with 20w or 30w power in elegant black or white. The dual port powe...

Shipped in 1-3 days

Shipped in 1-3 days

6,54 %
AEconversion aedl-lan web-based data logger
€653.31* €699.00* (6.54% saved)

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 %
AEconversion rj45 connector VS-08-rj45-5-Q / ip67-bk
€23.29* €32.59* (28.54% saved)

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 %
EcoFlow solar bag 220w foldable solar panel bifacial
€432.89* €363.77**

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 %
Mastervolt BI 702-S 70A 12V 24V Heavy-Duty battery separator diode
€61.29* €87.58* (30.02% saved)

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 %
Mastervolt USB Interface for the SCM Charge Controller series
€69.90* €82.79* (15.57% saved)

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*
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More versions available
Offgridtec SolarFlow 1.92kWh 880w hms-800-2t balcony power station with storage unit
€1,347.12* €1,132.03**

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

VAT-exempt delivery possible*
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24,72 %
More versions available
Pylontech 2x us3000c LiFePO4 battery 7kWh with inverter connection cable set and battery cabinet
Variants from €1,094.75*
€2,310.46* €1,941.56**

The us3000c (mpn us3000c) is a lithium storage system of the latest generation. The accumulator was specially developed to fully meet the high demands...

Shipped in 2-5 days

Shipped in 2-5 days

10,13 %
Victron Busbars battery switch 275a 48v
€37.43* €41.65* (10.13% saved)

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 ...

Shipped in 1-3 days

Shipped in 1-3 days

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13,32 %
Votronic 2088 Temperature Sensor 625 for M6 Screw Connection
€18.81* €21.70* (13.32% saved)

The Votronic 2008 temperature sensor 625 is functionally identical to the temperature sensor 825, but the 625 is designed for m6 screw terminals. Temp...

Shipped in 1-3 days

Shipped in 1-3 days

Your project: Camper, Garden shed, Vacation house...

We plan individual systems from a budget of 150€ up to large commercial projects.

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.