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Latest by Zendure

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

Anker All-in-One Solutions

Explore the SOLIX 2 series balcony power station storage units now.

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Project Modules

Our selection of high-performance solar panels enables the realization of customized projects.

Our new products

New
everHome CloudBox 4.0 BASIC package - smart control and monitoring unit
The CloudBox 4.0 from everHome in the BASIC package (MPN: CB4-20) is your smart control and monitoring unit that connects seamlessly with up to 10 dev...

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Shipped in 1-3 days

New
everHome CloudBox 4.0 PLUS package - smart control and monitoring unit
The CloudBox 4.0 from everHome in the PLUS package (MPN: CB4-30) is your smart control and monitoring unit that connects seamlessly with up to 25 devi...

Shipped in 1-3 days

Shipped in 1-3 days

New
everHome CloudBox 4.0 PREMIUM package - smart control and monitoring unit
The CloudBox 4.0 from everHome in the PREMIUM package (MPN: CB4-40) is your smart control and monitoring unit that connects seamlessly to an unlimited...

Shipped in 1-3 days

Shipped in 1-3 days

New
everHome EcoTracker electricity meter sensor
The EcoTracker from everHome (MPN: ET-IR) is an electricity meter sensor with which you can connect your smart devices to achieve efficient energy man...

Shipped in 1-3 days

Shipped in 1-3 days

New
Growatt SPE 10000 ES 10000W Hybrid-Wechselrichter 1-phasig
Der SPE 10000 ES Hybrid-Wechselrichter von Growatt (MPN SPE 10000 ES) vereint einen Dual-MPPT-Solarladeregler, einen Hochfrequenz-Wechselrichter mit r...

Shipped in 1-3 days

Shipped in 1-3 days

New
Growatt SPE 12000 ES 12000W Hybrid-Wechselrichter 1-phasig
Der SPE 12000 ES Hybrid-Wechselrichter von Growatt (MPN SPE 12000 ES) vereint einen Dual-MPPT-Solarladeregler, einen Hochfrequenz-Wechselrichter mit r...

Soon available again

Soon available again

New
Growatt SPE 8000 ES 8000W Hybrid-Wechselrichter 1-phasig
Der SPE 8000 ES Hybrid-Wechselrichter von Growatt (MPN SPE 8000 ES) vereint einen Dual-MPPT-Solarladeregler, einen Hochfrequenz-Wechselrichter mit rei...

Shipped in 1-3 days

Shipped in 1-3 days

New
H07V-K Erdungskabel Grün / Gelb 10mm² 450/750V XLPO
Das H07V-K Erdungskabel 10mm² (MPN 21525) von Offgridtec ist mit einer Spannungsfestigkeit von 450/750V die ideale Wahl für sichere und zuverlässige E...

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Soon available again

Preorder 19.03.2025
New
H07V-K Erdungskabel Grün / Gelb 16mm² 450/750V XLPO
Das H07V-K Erdungskabel 16mm² (MPN 021530) von Offgridtec ist mit einer Spannungsfestigkeit von 450/750V die ideale Wahl für sichere und zuverlässige ...

Product is expected to be back in stock on 19 March 2025

Product is expected to be back in stock on 19 March 2025

New
Hoymiles hys-3000lv 3kW Hybrid Inverter 1-phase
The HYS-3000LV from Hoymiles (MPN: HYS-3.0LV-EUG1) is a 3kW hybrid inverter that meets your energy needs and reduces electricity costs. With the intel...

Shipped in 1-3 days

Shipped in 1-3 days

Blognews

/ FROM - February 3, 2025

New at Offgridtec: Haier

Energy of the Future: Innovative Haier Products for Your Independence
/ FROM - January 30, 2025

Photovoltaische Warmwasser-Aufbereitung

Die kostengünstige Solarlösung für Haushalte mit geringem Energiebedarf!
/ FROM - November 16, 2024

BLACKWEEKS24

Sichere dir bis zu -40% auf ausgewählte Artikel in unserem Onlineshop mit dem Code BLACKWEEKS24

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

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

Victron MultiPlus-II 48/5000/70-50 230v
The Multiplus-II 48/5000/70-50 is a high-end device combination by Victron Energy (mpn: PMP482505012) that combines classic Multiplus components with ...

Shipped in 2-5 days

Shipped in 2-5 days

Our offers

6,54 %
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 %
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

27,73 %
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 ...

Soon available again

Soon available again

3,07 %
KEMO Solar Charge Controller Dual 16A
This charge controller is connected in between a 12V DC solar panel and 1 or 2 accumulators to prevent an overload of the accumulators. When there are...

Shipped in 1-3 days

Shipped in 1-3 days

21,40 %
More versions available
Lapp cable pvc cable h05v-k 1 x 0.75mm² 100m White
Stranded single wire, for flexible wiring in control engineering, device electronics and luminaires. May be used in conduits on and under plaster for ...

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Shipped in 1-3 days

59,37 %
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

13,76 %
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

9,74 %
Offgridtec Electricity meter for socket outlet for balcony power station Real-time electricity meter
The Offgridtec Electricity meter for sockets is the ideal PV meter for your balcony power plant. It has been specially designed for feeding in solar p...

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Shipped in 1-3 days

17,30 %
Offgridtec PWM Pro Charge Controller 12V/24V 30A USB
The Offgridtec PWM 12/24-30 (MPN 1-01-010920) is a microprocessor controlled solar charge controller with 30A max. charge capacity and can charge both...

Shipped in 1-3 days

Shipped in 1-3 days

13,80 %
Offgridtec© FSP2 225W Foldable Solar Panel
The fsp-2 225w 12v is the largest member of the Offgridtec fsp family and is also one of the most powerful foldable solar modules in the range. It has...

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Photovoltaic systems

All our complete systems are assembled according to the plug and play principle. The installation is therefore simple, uncomplicated and can be done without special tools.

Offgridtec.com - Your strong Partner for sustainable Energy Solutions and self-sufficient Power Supply

Solar island systems and numerous products for autonomous power supply: Discover solar modules, solar systems, storage systems, batteries, and much more – all directly from Offgridtec!

Photovoltaic Off-Grid Systems

What is a Solar Off-Grid System?

Off-grid systems are autonomous and independent systems for power supply. They operate without a connection to a public power grid and can be used as both permanently installed and mobile solutions. They are particularly useful in areas where there is no access to a national power grid. Examples include livestock fencing, toll control points in remote regions, or parking ticket machines.

Advantages of Off-Grid Operation

The term "off-grid operation" refers to a power supply system that works independently of a public power grid and generates and utilizes its own electricity.

Although there is a dense and reliable power grid in most European countries, off-grid systems are increasingly being used for technical devices with low power consumption. The use of photovoltaic off-grid systems allows for sustainable and independent power supply. They are the ideal solution for use in remote areas or for specific applications that do not require a continuous power supply.

Supply of Grid-Powered Alternating Current

Efficient Power Supply for High Demands Using Photovoltaics and Off-Grid Systems

Photovoltaic off-grid systems are also an efficient solution for applications with high power requirements, such as large events, remote gas stations, or small settlements. They are even utilized by fire departments and the military.

To ensure a constant frequency of 50 or 60 Hertz for devices that rely on grid-powered alternating current, off-grid systems require the following components:

  • DC Sources: Solar panels and batteries provide the necessary energy.
  • Generator Speed Control: Ensures stable performance.
  • Inverters: Convert direct current (DC) into alternating current (AC or grid power).

Advantages Over Diesel Generators

In high power consumption scenarios, gasoline or diesel engines coupled with generators are often used to generate the standard grid voltage. However, diesel generators and installed diesel power plants come with several disadvantages:

  • Limited Lifespan: Engine overhauls are necessary after approximately two years.
  • Low Efficiency: They demonstrate lower efficiency compared to coal power plants, especially at high loads.
  • Environmental Impact: Diesel generators produce harmful emissions, leading to air pollution and health risks.

Renewable Energies

Economics and Flexibility

Renewable energies are becoming increasingly economical due to decreasing costs of solar technology and rising fuel prices. The choice of system depends on the specific application.

Off-grid solar systems are suitable for:

  • Motorhomes & Boats: Independent power supply for travel.
  • Garden Houses: Standalone energy supply for lighting and appliances.
  • Home Gardens: Powering irrigation systems and workshops.
  • Off-Grid Homesteads: Power supply away from public grids.
  • Construction Sites: Energy supply for construction containers.

In other situations, the use of wind energy, hydropower, or wave energy may also be beneficial. Additionally, factors such as power demand play a crucial role, as a photovoltaic off-grid system in the megawatt range can be significantly more expensive than a wind turbine.

Energy Storage and Hybrid Systems

To bridge periods of low output, batteries are a good solution. For stable operation, hybrid systems that utilize biogas or are powered by internal combustion engines can also be considered.

For devices connected to a solar system, a voltage converter from 12V to 230V is often required. To optimally store the generated electricity, the use of a specialized solar battery is recommended.

Photovoltaic Off-Grid Systems

What is a Solar Off-Grid System?

Off-grid systems are autonomous and independent systems for power supply. They operate without a connection to a public power grid and can be used as both permanently installed and mobile solutions. They are particularly useful in areas where there is no access to a national power grid. Examples include livestock fencing, toll control points in remote regions, or parking ticket machines.

Advantages of Off-Grid Operation

The term "off-grid operation" refers to a power supply system that works independently of a public power grid and generates and utilizes its own electricity.

Although there is a dense and reliable power grid in most European countries, off-grid systems are increasingly being used for technical devices with low power consumption. The use of photovoltaic off-grid systems allows for sustainable and independent power supply. They are the ideal solution for use in remote areas or for specific applications that do not require a continuous power supply.

Supply of Grid-Powered Alternating Current

Efficient Power Supply for High Demands Using Photovoltaics and Off-Grid Systems

Photovoltaic off-grid systems are also an efficient solution for applications with high power requirements, such as large events, remote gas stations, or small settlements. They are even utilized by fire departments and the military.

To ensure a constant frequency of 50 or 60 Hertz for devices that rely on grid-powered alternating current, off-grid systems require the following components:

  • DC Sources: Solar panels and batteries provide the necessary energy.
  • Generator Speed Control: Ensures stable performance.
  • Inverters: Convert direct current (DC) into alternating current (AC or grid power).

Advantages Over Diesel Generators

In high power consumption scenarios, gasoline or diesel engines coupled with generators are often used to generate the standard grid voltage. However, diesel generators and installed diesel power plants come with several disadvantages:

  • Limited Lifespan: Engine overhauls are necessary after approximately two years.
  • Low Efficiency: They demonstrate lower efficiency compared to coal power plants, especially at high loads.
  • Environmental Impact: Diesel generators produce harmful emissions, leading to air pollution and health risks.

Renewable Energies

Economics and Flexibility

Renewable energies are becoming increasingly economical due to decreasing costs of solar technology and rising fuel prices. The choice of system depends on the specific application.

Off-grid solar systems are suitable for:

  • Motorhomes & Boats: Independent power supply for travel.
  • Garden Houses: Standalone energy supply for lighting and appliances.
  • Home Gardens: Powering irrigation systems and workshops.
  • Off-Grid Homesteads: Power supply away from public grids.
  • Construction Sites: Energy supply for construction containers.

In other situations, the use of wind energy, hydropower, or wave energy may also be beneficial. Additionally, factors such as power demand play a crucial role, as a photovoltaic off-grid system in the megawatt range can be significantly more expensive than a wind turbine.

Energy Storage and Hybrid Systems

To bridge periods of low output, batteries are a good solution. For stable operation, hybrid systems that utilize biogas or are powered by internal combustion engines can also be considered.

For devices connected to a solar system, a voltage converter from 12V to 230V is often required. To optimally store the generated electricity, the use of a specialized solar battery is recommended.