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The balcony power plants from Offgridtec offer a practical solution to generate a portion of the electricity needed for households, significantly reducing overall electricity costs. The system includes two solar modules, a suitable micro-inverter with a DTU control unit, and an AC connection cable that connects the inverter to a power outlet. The modules are designed to be installed directly next to each other.

How does a balcony power plant work?

The Offgridtec balcony power plant is a space-saving solar system consisting of a solar module and a compatible Hoymiles micro-inverter to feed the generated electricity into the household electrical network. The inverter is ideally attached directly to the substructure of the solar module and connected to the module using a solar connector. The AC cable is connected via the battery terminal of the inverter and routed directly to the appropriate outlet. You can choose between a conventional Schuko outlet and a Wieland feed-in socket, which is included in the delivery. No special settings are required to use the generated solar power in the home's electrical network. If there is power from other sources in the house, this is preferentially used and supplemented with grid power if needed.

The balcony power plant complete system includes:

Trina Solar Vertex S+ 445W Solar Module

The Trina Solar Vertex S+ (MPN: TSM-NEG9R.28) is an efficient solar module with a power output of 445W, using monocrystalline TOPCon cells and dual glass technology. Thanks to the multi-busbar technology, it offers improved absorption, low series resistance, enhanced current collection, and reliability. It is certified for extreme wind and snow loads of 5400 - 4000 Pa and features high-transparent, 1.6 mm thick glass with anti-reflective coating. The frame is made of a 30 mm wide, anodized aluminum alloy.

Features

  • Multi-busbar technology
  • Dual-glass design
  • High-density cell connection technology
  • N-type i-TOPCon cell technology
  • Very low degradation
  • High efficiency of 22.3%

Technical Data

  • Power (Pmax): 445 W
  • Voltage (Vmp): 44.3 V
  • Max. Current (Imp): 10.05 A
  • Open circuit voltage (Voc): 52.6 V
  • Short circuit current (Isc): 10.71 A
  • Operating temperature: -40°C - +85°C
  • Max. system voltage: 1500V DC
  • Max. fuse rating: 20A
  • Number of cells: 144
  • Protection class junction box: IP68
  • Dimensions: 1762 x 1134 x 30 mm
  • Weight: 21.1 kg

Hoymiles HMS-1600-4T Micro-Inverter

The HMS-1600-4T (MPN: HMS-1600-4T) from Hoymiles is the perfect micro-inverter for your balcony power plant. This compact lightweight (only 5.56kg) is suitable for solar power production with up to four solar panels with a capacity of 320W to 540W+ each. Like all other micro-inverters from Hoymiles, it is designed for long operating hours and broad PV module application, as its start voltage is very low (only 22V), and the DC input voltage operating range (16-60V) is extremely wide.

Technical Data

  • Recommended module power: up to 320W - 540+W (per module)
  • MPPT voltage range: 16-60V
  • Switch-on voltage: 22V
  • Maximum input voltage: 65V
  • Maximum input current: 4*14A
  • Maximum input short-circuit current: 4*25A
  • Nominal output power: 1600VA
  • Nominal output current: 6.96A
  • Nominal output voltage/range: 230V / 180-275V
  • CEC peak efficiency: 96.70%
  • Operating temperature range: -40°C - +65°C
  • Dimensions (WxHxD): 331 x 218 x 40.6 mm
  • Weight: 5.56kg
  • Enclosure rating: IP67

Balcony Power Plants in Germany

Currently, there is no law or regulation in Germany that governs the generation of solar power for pure self-consumption. The limit of a maximum of 600W AC PV output is a reserve value that can be fed into an existing socket circuit of a house without overloading it, according to the current VDE standards. For independent circuits without additional loads, nothing is specified. Every electrical installation should comply with VDE standards. However, the operation of a balcony power plant via the usual Schuko socket is fundamentally not prohibited. Registration with the Federal Network Agency is mandatory. However, there have been no known cases of fines for not registering balcony power plants, nor are there insurmountable problems with grid operators. Compliance with norms and obligations falls to the plant operator. There is already much technical and legal information available on reputable websites regarding this topic.

Hoymiles_HMS_Cable-Accessoires.pdf Download
User manual_HMS-1600-1800-2000-4T_EU_EN_V202204.pdf Download
Hoymiles_HMS-160018002000-4T_Datasheet.pdf Download
Hoymiles_HMS-1600_1800_2000_COCPVP0307821B-09.pdf Download
Hoymiles_DTU-Lite-S_Bedienungsanleitung.pdf Download
Hoymiles_DTU-Lite-S_Datenblatt.pdf Download
Trina_Vertex-S-TSM-NEG9R-28_Datenblatt.pdf Download
Hoymiles_HMS-1600_1800_2000_COCPVP0307821B-08.pdf Download
Category name: Complete system feed
Input voltage: 16V-60V
Manufacturer: Offgridtec
Module voltage (VMP): 44,3 V
Open circuit voltage (VOC): 52,6 V
Product Type: Balcony power station
Rated output voltage: 230 V
Short circuit current (ISC): 10,71 A
Weight: 95 kg
max. current (IMP): 10,05 A

Manufactuerer Information

Offgridtec GmbH

Offgridtec GmbH
Im Gewerbepark 11
84307 Eggenfelden
Germany

Mail: info@offgridtec.com

Tel.: +49 8721 9199400

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