900W solar system with Fothermo 80L hybrid boiler, switchover device, and Hoymiles HMS-800W-2T with 800W grid feed-in

The Offgridtec Solar Hot Water Set offers a well-designed complete solution for efficient hot water production using solar power. It combines high-quality Luxen Solar 450W bifacial modules, the intelligent Fothermo 80L hybrid photovoltaic boiler, the automatic switchover device for solar and grid operation, and the modern Hoymiles HMS-800W-2T micro inverter with integrated WiFi. The plug-and-play technology enables quick installation and ensures reliable hot water production at all times – even when there is little sunlight.

Solar hot water set for flexible and reliable hot water heating

This kit contains all the components you need to meet your hot water needs with solar energy. The automatic switchover device ensures that the system seamlessly switches to mains operation when solar output is insufficient, so that hot water is always available. You can customize the system with 2, 3, or 4 modules to suit your consumption and space requirements.

Why this set is the optimal choice:

• Maximum energy efficiency: Bifacial Luxen solar modules with modern N-TOPCon technology also use reflected light to increase electricity yield.
• Reliable hot water supply: The Fothermo hybrid boiler combines solar heat with automatic grid backup heating for a consistent supply of hot water, even in bad weather.
• Seamless switching: The switch ensures an uninterrupted changeover between solar and grid operation.
• Flexible system sizes: Choose between 2, 3, or 4 modules to suit your individual performance requirements and consumption volumes.
• Easy monitoring: The Hoymiles HMS-800W-2T micro inverter with integrated WiFi enables convenient real-time monitoring and control.

Components of the Offgridtec solar hot water set

• 2x / 3x / 4x Luxen Solar 450W bifacial solar module TopCon Luxneri Series N5 Full Black (depending on selection)
• 1x Fothermo 80L hybrid photovoltaic boiler with mains reheating
• 1x Fothermo switch from photovoltaic to mains power
• 1x Hoymiles HMS-800W-2T micro inverter with WiFi
• 4x / 5x / 6x MC4 to MC4 6mm² 5m red/black connection cable - modules & boiler to switch device (depending on selection)
• 1x MC4 to MC4 6mm² 2m red/black connection cable - switch device to inverter
• 1x 10m 3x1.5mm² connection cable for Hoymiles HMS micro inverter

Luxen Solar 450W Bifacial Solar Module TopCon Luxneri Series N5 Full Black

The Luxen Solar 450W Bifacial Solar Module TopCon Luxneri Series N5 Full Black combines modern N-TOPCon half-cell technology with bifacial design to efficiently utilize reflected light. The all-black design with a robust aluminum frame ensures durability and aesthetics.

• Power: 450 W
• Voltage (Vmp): 30.08 V
• Current (Imp): 14.96 A
• Open circuit voltage (Voc): 35.21 V
• Short-circuit current (Isc): 16.02 A
• Dimensions: 1762 × 1134 × 30 mm
• Weight: 24 kg

Fothermo 80L hybrid photovoltaic boiler with mains backup heating

The Fothermo hybrid boiler combines the direct solar heat of the photovoltaic heating rod with automatic mains backup heating, which is controlled by a digital temperature control system. This ensures a constant supply of hot water, even when the sky is cloudy or at night.

• Storage volume: 80 liters
• PV heating capacity: up to 550 W
• Mains reheating: 1500 W (230 V)
• Protection class: IP24
• Max. operating temperature: 65 °C
• Dimensions: 480 × 480 × 860 mm
• Weight: 21 kg

Fothermo switchover device for photovoltaic to mains power

The switchover device automatically detects when the solar output is no longer sufficient and switches to mains power without interruption. This guarantees a continuous hot water supply in all weather conditions.

• Automatic switching between solar and mains operation
• Maximum utilization of self-generated solar power
• Plug-and-play installation
• Compact and robust housing

Hoymiles HMS-800W-2T micro inverter with WiFi

The micro inverter converts the direct current from the solar modules into grid-compliant alternating current. Thanks to integrated WiFi, you can conveniently monitor and control the system via an app or web portal.

• Rated power: 800 W
• Real-time monitoring via app and web portal
• High efficiency even in partial shade
• Robust design for a long service life