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 feature—just plug it in and start saving money! Turn your balcony into a source of energy, and thanks to the low upfront costs, the system pays for itself quickly.

System Highlights

• Ultra-light modules, each with 200W
• 800W inverter with built-in Wi-Fi
• High-quality energy generation with high MPPT accuracy
• Monitoring and control via app
• Comprehensive installation accessories, including
• Plug-and-Play—just plug it in and start saving money
• 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 frames and metal cable ties
• 1x Hoymiles HiFlow 800 Pro HMS-800-2WB Microinverter 800W Pro
• 2x Offgridtec 1 m 6 mm² 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 a capacity of 200W, and an HMS-800-2WB microinverter with built-in Wi-Fi. 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 electricity 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 Panel Set consists of two 200W solar panels, each featuring monocrystalline solar cells and a remarkable efficiency rating of 22.7%. These panels 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.

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

Technical Specifications

• Power (Pmax): 200 W
• 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 Microinverter

The HMS-800-2WB from Hoymiles (MPN: HMS-800-2WB) is a high-performance 2-in-1 microinverter designed 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 safety thanks to IP67 protection, an isolated transformer, and certified cybersecurity.

• Dual Module Control: Two independent MPPT channels for efficient energy yield—even in the event of shading or when using different 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 the 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, rugged enough for indoor and outdoor use

Technical Specifications

DC Input Current

• Typically used module power: 320 to 540+ W
• Max. input voltage: 65 V
• MPPT voltage range: 16–60 V
• Min./Max. Start Voltage: 22/60 V
• 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—no fan

Balcony Power Plants in Germany

Currently, there is no law or regulation in Germany governing the generation of solar power solely for personal use. The limit of a maximum of 800 W AC PV output 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 regarding standalone 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 prohibited in principle. Registration with the Federal Network Agency is mandatory. However, there are no known cases of fines for failure to register 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 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? Contact us—we’d be happy to help.