A Balcony Microgrid is a small-scale distributed photovoltaic (PV) power generation system installed on residential balconies, terraces, or exterior walls. Composed of PV modules, micro-inverters, and energy storage equipment, it converts solar energy into electricity for direct household use.
These systems are compact, lightweight, and require no structural modifications to the building, offering a "plug-and-play" solution. They are particularly suitable for installation scenarios with limited space, such as urban apartments and villas. A standard system typically includes 1 to 4 PV modules with a total power output ranging from approximately 200 to 800 watts, sufficient to meet a portion of a household's daily electricity needs.
A typical balcony solar-plus-storage system mainly consists of the following components:
Photovoltaic (PV) Modules
Flexible and lightweight modules (which are light and bendable) or small monocrystalline silicon panels (known for high efficiency) are recommended. The power output of a single module usually ranges between 200W and 800W, allowing for the flexible selection of 1 to 4 panels based on the balcony size. Frameless, all-black, and lightweight designs not only further reduce weight but also blend seamlessly with modern architectural styles, meeting consumer demands for aesthetics.
Micro-Inverters
The micro-inverter is responsible for converting the direct current (DC) generated by the solar panels into alternating current (AC) usable by the home. Unlike traditional string inverters, micro-inverters provide independent power optimization for each PV module, preventing local shading from affecting the overall power generation efficiency.
Energy Storage Devices
Plug-in balcony energy storage systems are an ingeniously designed energy solution that integrates PV power generation with storage functions directly on the balcony. Through a convenient plug-in installation method, these systems combine solar panels with storage batteries, saving space while improving energy utilization efficiency. The system converts solar energy into electricity and stores it in the battery during sunny periods for use at night or on cloudy days, helping to reduce electricity bills and decrease reliance on traditional energy sources.
Anti-Backflow Meters
Used to prevent excess electricity generated by the PV system from flowing backward into the grid, ensuring safe and stable system operation. Equipped with bidirectional metering capabilities, these devices record both PV generation and household consumption, distinguishing between "self-consumption" and "surplus power." This provides data support for electricity billing and revenue analysis.