800W balcony power plant with ultra-light solar modules featuring integrated HMS-800-2WB WiFi

Discover the Offgridtec Balcony Power Plant (MPN: 022215) and learn how to generate your own electricity, actively reducing your energy costs. With ultra-lightweight 200W solar panels and a state-of-the-art 800W inverter featuring built-in Wi-Fi, you’ll benefit from efficient energy conversion and monitoring. Thanks to high MPPT accuracy, energy generation is optimized, while you can conveniently monitor performance via the app. Installation is a breeze thanks to the extensive range of accessories and the practical plug-and-play function—just plug it in and save money! Turn your balcony into an eco-friendly and sustainable energy source, and thanks to the low investment costs, the system pays for itself quickly.

System Highlights

• Ultra-light modules, each with 200W
• 800W inverter with integrated WiFi
• High-quality energy generation with high MPPT accuracy
• Monitoring and control via app
• Comprehensive installation accessories included
• Plug-and-play—just plug it in and save money
• Make your lifestyle more eco-friendly
• Investment pays for itself quickly
• Energy management via app

The Balcony Power Plant Complete Set includes

• 2x Offgridtec® Balcony Solar Module Set 12V 2x 200W with slim aluminum frame and metal cable ties
• 1x Hoymiles HiFlow 800 Pro HMS-800-2WB Microinverter 800W Pro
• 2x Offgridtec 1m 6mm² MC-4 connection cable (plug/socket extension)
• 1x Hoymiles Disconnect Tool for AC Box HMS Microinverter
• 1x 5m 3x1.5mm² connection cable for Hoymiles HMS microinverters

How does a balcony power plant work?

Our balcony power plant offers a simple and efficient solution for generating your own electricity. It consists of four ultra-light solar modules, each with 200W, and an HMS-800-2WB microinverter with integrated WiFi. Installation is quick and easy: The inverter is mounted on the solar panels, connected using solar connectors, and then the AC cable is plugged in. Your home’s electrical system primarily uses the solar power generated. If needed, additional power is drawn from the public grid. You also have the option to add a battery system to store excess energy and ensure nothing goes to waste.

Ultra-light solar panel set - 4x 200W

The Offgridtec Balcony Solar Module Set consists of two 200W solar modules, each featuring monocrystalline solar cells and a remarkable efficiency rating of 22.7%. These modules offer an operating voltage of 24.2V each and combine outstanding energy efficiency, aesthetic design, and easy installation. With the included 12 metal cable ties, the set is ideal for mounting on a balcony and makes it easy to integrate photovoltaic technology for generating green energy on-site.

• 8mm thin aluminum frame
• High operating voltage of 24.2V
• Cell efficiency of 22.7%

Technical Specifications

• Power (Pmax): 200W
• Operating voltage (Vmp): 24.2 V
• Open-circuit voltage (Voc): 28.3 V
• Max. current (Imp): 8.27 A
• Short-circuit current (Isc): 8.68 A
• Dimensions: 1175 x 970 x 8 mm
• Weight: 9.8 kg

HMS-800-2WB Micro Inverter

The HMS-800-2WB from Hoymiles (MPN: HMS-800-2WB) is a high-performance 2-in-1 microinverter for balcony, patio, or garden solar installations and small PV systems. It stands out with its exceptionally simple plug-and-play installation, two independent MPPT inputs for optimal module utilization, an integrated Wi-Fi and Bluetooth module for direct monitoring without additional hardware, and maximum system security thanks to IP67 protection, an isolated transformer, and certified cybersecurity.

• Dual module control: Two independent MPPT channels for efficient energy yield—even in shaded conditions or with mixed modules
• Smart control: Integrated Wi-Fi and Bluetooth for direct app or cloud control without a separate data box
• Easy commissioning: Plug-and-play with Flex-S3 cable system, quick connection without complex electrical work
• Maximum safety: IP67 protection rating, fast emergency shutdown, isolated circuitry, and data protection in accordance with ETSI EN 303 645
• Silent, maintenance-free technology: Fanless cooling system, robust for indoor and outdoor use

Technical Specifications

DC input current

• Typically used module power: 320 to 540+ W
• Max. input voltage: 65V
• MPPT voltage range: 16–60V
• Min./Max. Start Voltage: 22/60V
• Max. input current: 2 × 14 A
• Max. input short-circuit current: 2 × 25 A
• Number of MPPT trackers: 2
• Number of inputs per MPPT: 1

AC output current

• Rated output power: 800 VA
• Rated output current: 3.48 A
• Rated output voltage: 230 V (180 to 275)
• Rated frequency: 50/45 to 55 Hz

General

• Plug type: Flex-S3 field connector to Schuko
• Cable length: 5 m
• Peak efficiency: 96.70%
• Ambient temperature range: -40 to +65 °C
• Dimensions: 261 × 180 × 35.1
• Weight: 3.2 kg
• Protection rating: IP67 (external)
• Cooling: Natural convection – fanless

Balcony power plants in Germany

Currently, there is no law or regulation in Germany governing the generation of solar power for personal use only. The limit of a maximum of 800W AC PV power is a reserve value that, according to the current VDE standard, can be fed into an existing outlet circuit in a home without overloading it. There are no specifications for independent circuits without additional load.
Every electrical installation should be carried out in accordance with VDE standards. However, operating a balcony power plant via a standard Schuko outlet is not generally prohibited. Registration with the Federal Network Agency is mandatory. However, there are currently no known cases of fines for failure to register balcony power plants, nor are there any insurmountable issues with grid operators. Compliance with and implementation of standards and obligations is the responsibility of the system operator. A wealth of technical and legal information on this topic is already available on relevant websites.

Do you have further questions about balcony power plants and how they work? Get in touch with us; we’d be happy to help.