Offgridtec 900W Growatt NEO 800M-X Trina Vertex S+ Dual Glass Mini PV Solar System

The 900W balcony power plant from Offgridtec is based on two high-quality, monocrystalline 450W Vertex S+ solar modules from Trina Solar and the single-phase NEO 800M-X 800W micro inverter from Growattthe system also includes a suitable AC connection cable for the micro inverter and two MC-4 connection cables for the solar modules. Offgridtec's balcony power plants offer a practical solution for generating part of the electricity required for the household yourself, thereby significantly reducing the costs for total electricity consumption.

How does a balcony power plant work?

The Offgridtec balcony power plant is a space-saving solar system consisting of two solar modules and a matching Growatt micro inverter to feed the generated electricity into the in-house power grid. Ideally, the inverter is attached directly to the substructure of the solar module and connected to the module with the solar connector. The AC cable is connected via the inverter's battery connection and routed directly to the appropriate outlet. No special settings are required to use the solar power generated in the home's power grid. If power is available from other sources in the home, this is used preferentially and supplemented by grid power if necessary.

The complete balcony power plant system includes:

• 2x Trina Solar Vertex S+ 450W dual glass solar module
• 1x Growatt NEO 800M-X 800W micro inverter
• 2x Offgridtec 3m MC-4 connection cables
• 1x Growatt 5m NEO 800-M-X AC connection cable micro inverter

Trina Solar 450W Vertex S+ dual glass N-type TopCon

The Trina Solar Vertex S+ (MPN: TSM-450 NEG9R.28) is an effective solar module with an output of 450W that uses monocrystalline TOPCon cells and dual glass technology. Thanks to multi-busbar technology, it offers improved absorption, low series resistance, improved current dissipation, and reliability. It is certified for extreme wind and snow loads of 5400 - 4000 Pa and features highly transparent, 1.6 mm thick glass with anti-reflective coating. The frame is made of a 30 mm wide, anodized aluminum alloy

Product highlights of the Trina Vertex S+ module

• Multi-busbar technology
• Dual glass design
• High-density cell connection technology
• N-type i-TOPCon cell technology

Technical data

• Power (Pmax): 450 W
• Voltage (Vmp): 44.6 V
• Max. current (Imp): 10.09 A
• Open circuit voltage (Voc): 52.9 V
• Short-circuit current (Isc): 10.74 A
• Operating temperature: -40°C to +85°C
• Max. system voltage: 1500V DC
• Cell efficiency: 22.5%
• Number of cells: 144

Growatt NEO 800M-X 800W micro inverter

The Growatt NEO 800M-X is a single-phase micro inverter that has been specially developed for the hassle-free use of balcony power plants and mini solar systems. The inverter is characterized by its impressive efficiency of up to 96.5%. With 2 independent MPPT inputs and an impressive maximum PV power of 320W to 540W, this inverter is ideal for smaller systems. The inverter also offers a WiFi function that enables effortless system monitoring.

Technical data

• Max. recommended PV power: 320W to 540W+
• Max. input voltage: 60 V
• Start voltage: 16 V
• Nominal DC voltage: 16-60 V
• MPPT voltage range: 28V-60V
• Max. input current per MPPT: 16A
• Max. short-circuit current per MPPT: 20 A
• AC rated power: 800 W AC rated voltage range: 230 V (180-253 V)
• Frequency range: 50/60 Hz (45-55Hz/55-65Hz)
• Nominal output current: 3.48 A
• Dimensions: 260 x 220 x 43 mm
• Weight: 3.1 kg
• Operating temperature range: -40°C to +65°C
• Protection class: IP67

Balcony power plants in Germany

There is currently no law or regulation in Germany governing the generation of solar power for purely personal use. The maximum limit of 600W AC PV power is a reserve value which, according to the current VDE standard, can be fed into an existing socket circuit in a house without overloading it. There are no specifications for independent circuits without additional load. All electrical installations should be carried out in accordance with VDE standards. However, the operation of a balcony power plant via a standard Schuko socket is not prohibited. Notification to the Federal Network Agency is mandatory. However, there are no known cases of fines for failure to report balcony power plants, nor are there any insurmountable problems with grid operators. Compliance with and implementation of standards and obligations is the responsibility of the plant operator. A wealth of technical and legal information on this subject can be found on relevant websites.