Balcony Solar Kit Flex 880 Wp – Envertech EVT800 – 600 W

With this Balcony Solar Kit with 880 Wp Generate your own solar power right on your balcony. Four monocrystalline, semi-flexible solar modules, each with a power output of 220 Wp, supply the Envertech EVT800 microinverter. This device converts the generated direct current into grid-compatible alternating current for household use.

The solar power is automatically used by the electrical appliances that are currently running. As a result, the refrigerator, router, lighting, chargers, and other appliances draw less energy from the public grid. If more electricity is generated than is needed at any given time, the surplus flows through the electricity meter into the distribution grid.

Each of the four Flex modules weighs only about 3.5 kg and features built-in mounting eyelets. This makes them particularly well-suited for balcony railings where a lightweight module and ease of handling are important.

Four lightweight Flex modules with a total of 880 Wp

The four semiflexible 220-Wp solar modules each measure 1100 × 1080 mm and are only about 3 mm thick without the junction box. Their light weight makes them easier to handle than conventional framed glass modules.

• 880 Wp total power consisting of four solar modules, each with a power rating of 220 Wp
• only about 3.5 kg per solar panel
• Twelve built-in eyelets per module for proper fastening
• MC4-compatible connectors and 4-mm² solar cables
• monocrystalline solar cells with a module efficiency of 20.18%
• High module power output for better utilization of the inverter under less-than-ideal irradiance conditions

Semi-flexible solar modules are bendable, but cannot be folded or kinked at will. Installation, the mounting surface, and the permissible degree of bending must comply with the specifications in the module documentation. Point loads, sharp edges, and installations that are under constant tension must be avoided.

Parallel Connection Using Two MC4-Y Connector Sets

The Envertech EVT800 has two PV inputs, each with its own MPPT tracker. Since the set includes four solar modules, two electrically identical 220-Wp modules are connected in parallel using an MC4 Y-connector set. Each of the two pairs of modules is then connected to a separate PV input on the microinverter.

In a parallel connection, the voltage of a single module remains unchanged, while the currents of the two modules add together. This results in 440 Wp of module power, 42.12 V of MPP voltage, and 10.62 A of MPP current per MPPT input.

The electrical configuration of the two pairs of modules falls within the published input specifications for the Envertech EVT800. This requires that two identical modules be connected in parallel in each case and that the electrical connections be made completely and securely in accordance with the manufacturer’s instructions.

Envertech EVT800: Limited to 600 W for Switzerland

The Envertech EVT800 is designed to deliver a maximum AC output of up to 800 W. However, the version intended for this Swiss balcony solar kit is Limited to a maximum AC output power of 600 W and thus takes into account the currently applicable Swiss power limit for plug-and-play photovoltaic systems.

The 600-W limit cannot be changed by the operator via the EnverView app, the monitoring system, or other device settings. Any unauthorized modification is prohibited and may compromise the compliance of the entire balcony solar kit.

Why does a module with 880 Wp of power have an output of 600 W?

Together, the four solar modules provide a rated power output of 880 Wp. However, in the current Swiss version, the Envertech EVT800 limits the AC output power to a maximum of 600 W.

The higher module power helps ensure that the microinverter operates more efficiently even under cloudy conditions, with lower irradiance, high module temperatures, or less-than-ideal sun angles. When irradiance is very high, the AC output power is limited to 600 W.

Prepared for a possible future 800-W regulation

The Envertech EVT800's technical platform is already designed to handle up to 800 W. Should the permissible AC output power for plug-and-play photovoltaic systems in Switzerland be increased to 800 W in the future, the manufacturer can adapt the Swiss 600-W version accordingly.

Such a change does not occur automatically and is not intended by the operator. It may only be implemented once Swiss regulations permit it and an officially approved performance adjustment from the manufacturer or provider is available. In doing so, the applicable requirements for conformity, connection, and registration must be taken into account.

With a total of 880 Wp, the four solar modules generally provide enough rated power to support a potential future AC output of 800 W. Whether this output is actually achieved depends on solar irradiance, orientation, shading, module temperature, and other system losses.

Wi-Fi Monitoring with EnverView

The Envertech EVT800 features built-in Wi-Fi and can be connected to the EnverView app or the Envertech Portal. This allows users to monitor, among other things, current power output, operating status, and energy generated.

To ensure stable data transmission, a sufficient Wi-Fi connection should be available at the installation site. The monitoring system is used for display and monitoring purposes. The 600 W limit specified for Switzerland cannot be changed by the operator through this system.

Benefits of the Balcony Solar Kit

• 880 Wp total power made up of four lightweight Flex modules
• Direct self-consumption reduces electricity consumption from the grid
• Easy to use thanks to semi-flexible solar modules
• two pairs of modules connected in parallel, each with 440 Wp
• two separate MPPT trackers for the two pairs of modules
• Two matching MC4 Y-connector sets included
• Built-in Wi-Fi for EnverView Monitoring
• 800-W hardware platform: The manufacturer may adjust the power output if future Swiss regulations permit 800 W for plug-and-play systems
• Solar extension cords and a 5-meter AC power cord are included in the set

For which applications is this set suitable?

The Balcony Solar Kit Flex 880 Wp is designed for renters, condominium owners, and homeowners who want to generate grid-connected solar power at a suitable location. Typical applications include:

• larger balconies with suitable, sturdy railings
• Railings with sufficient surface area and secure mounting options
• Patios with railings and a suitable outdoor electrical outlet
• Apartments or single-family homes with basic appliances running during the day

This kit is a grid-connected, plug-and-play photovoltaic system. The Envertech microinverter requires an existing and suitable power grid. The kit is not intended to serve as a standalone power supply for a traditional off-grid or emergency power system.

What's Included

Installation and Commissioning

1. Check the available space, railing design, load-bearing capacity, wind load, and electrical outlet.
2. Securely fasten the four flex modules according to the installation instructions, ensuring they are free of tension.
3. Install the Envertech EVT800 in a suitable and adequately ventilated location.
4. Connect two solar modules in parallel, each with one male and one female MC4-Y connector.
5. Connect each of the two pairs of modules connected in parallel to a separate PV input on the microinverter.
6. Protect cables and connectors from tension, crushing, kinking, and the elements.
7. Report the system, along with the declaration of conformity, to the relevant distribution system operator.
8. Connect the AC power cord to the designated Swiss outdoor outlet.
9. If necessary, set up Wi-Fi monitoring according to the Envertech instructions.

Reporting Requirements and Use in Switzerland

In Switzerland, plug-and-play photovoltaic systems currently may not exceed an AC output of 600 W per subscriber connection or electricity meter. The responsible distribution system operator must be notified in writing prior to commissioning. The declaration of conformity for the complete set must be submitted at that time.

Depending on the building and installation location, additional requirements may include the landlord’s consent, a resolution by the condominium owners’ association, or local building code regulations.

Should the permissible power limit in Switzerland be raised to 800 W in the future, the regulations published at that time will apply. Any modification to the EVT800 may therefore only be made after a corresponding change in the law and official approval by the manufacturer or supplier.

Solar Energy Yield and Self-Consumption

Actual output depends on location, orientation, tilt, shading, temperature, and mounting type. Because the module power is higher than the AC output power, the microinverter can more frequently deliver high usable power even under less-than-ideal conditions.

Solar power provides the greatest economic benefit when it is consumed directly in one's own household. Appliances with programmable timers should therefore be operated during sunny hours whenever possible.

Technical Specifications

Conclusion

The Flex 880 Wp Balcony Solar Kit is a high-performance solution for suitable balcony railings with sufficient mounting space. The four lightweight Flex modules are connected using the two included MC4-Y connector sets to form two pairs of modules, each with 440 Wp.

The Envertech EVT800 provides a separate MPPT input for each pair of modules. The Swiss version is currently limited to a maximum AC output power of 600 W; however, with its 800-W hardware platform, it provides the technical foundation for a possible future adjustment by the manufacturer.

With the included Y-connectors, solar extension cables, the 5-meter connection cable, and the UV-resistant cable ties, the essential components for the planned balcony installation are already included.

Frequently Asked Questions About the Balcony Solar Kit Flex 880 Wp

• Why does the kit have 880 Wp if the inverter is limited to 600 W?

  
  

  The 880 Wp refers to the rated power of the four solar modules under standardized test conditions. In this Swiss set configuration, the Envertech EVT800 limits the AC output power to a maximum of 600 W. The higher module power helps ensure that the inverter operates at full capacity more frequently, even under less-than-ideal sunlight conditions.

• How are the four solar panels connected?

  
  

  Two 220-Wp solar modules are connected in parallel using an MC4-Y connector set. Each pair of modules is then connected to a separate MPPT input on the Envertech EVT800. The two MC4-Y connector sets required are included in the package.

• How many MC4-Y connectors are included in the set?

  
  

  The set includes two complete MC4 Y-connector sets. Each set consists of one male and one female Y-connector. This means a total of four individual Y-connectors are included.

• Is the parallel connection compatible with the Envertech EVT800?

  
  

  Yes. For each MPPT input, two identical 220 Wp modules are connected in parallel. This results in 440 Wp, 42.12 V MPP voltage, and 10.62 A MPP current per input. These values fall within the published specifications for the Envertech EVT800.

• Is the set prepared for a potential Swiss 800-W regulation?

  
  

  The Envertech EVT800 is designed to handle a maximum AC output power of up to 800 W. Should Switzerland permit 800 W for plug-and-play photovoltaic systems in the future, the manufacturer can adapt the Swiss 600-W version accordingly. There are no plans for the operator to activate the system independently.

• Can the set generate 800 W after a conversion has been approved?

  
  

  The four solar modules together provide a rated power of 880 Wp, which in principle meets the required module power. Whether 800 W AC is actually achieved depends on irradiance, orientation, shading, temperature, and system losses. The conversion may only take place after a corresponding change to Swiss regulations and official approval by the manufacturer or supplier.

• Can I change the 600-W limit myself?

  
  

  No. The limit cannot be changed via the EnverView app, the monitoring system, or other user settings. Any subsequent adjustment to performance must be officially approved by the manufacturer or provider.

• What types of balcony railings is this set suitable for?

  
  

  This set is suitable for railings with sufficient mounting surface area, where all four Flex modules can be securely fastened in accordance with the installation instructions so that they are tension-free and wind-resistant. Dimensions, load capacity, railing design, and wind load must be checked on a case-by-case basis before purchase.

• Does the facility have to be registered in Switzerland?

  
  

  Yes. The relevant distribution system operator must be notified in writing before the system is put into operation. In this regard, the Declaration of Conformity for the Complete Set submit. For rental properties, the landlord's or property management's consent is also required.

• What happens to unused solar power?

  
  

  Solar power is first used by household appliances that are running at the same time. Any surplus that is not consumed immediately flows through the electricity meter into the public grid. The relevant grid operator determines whether this electricity is compensated and under what conditions.

• Can the set be operated without connecting to the public power grid?

  
  

  No. The Envertech microinverter is designed for grid-connected operation and requires an existing power grid. The kit is not a standalone off-grid or emergency power system.

• How can self-consumption be improved?

  
  

  You'll get the most benefit when electricity consumption and solar production coincide. Whenever possible, run your washing machine, dishwasher, chargers, and other controllable appliances during the sunny hours of the day.