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FAQ

  • Which off-grid or weak-grid areas are suitable for off-grid energy storage systems?

    Widely used in locations without access to the public grid or with prohibitively high connection costs—such as communication base stations, remote mountainous areas, islands, pastures, and field workstations—serving as the primary power source.

  • What are the core components of an off-grid system?

    Typically consists of "renewable energy (solar/wind) generation equipment + energy storage batteries + off-grid inverter/charge controller + diesel generator (optional)".

  • How to determine the battery and photovoltaic configuration capacity for an off-grid system?

    It requires precise energy auditing and system design based on load power, daily electricity consumption, and local climate conditions (sunlight hours, consecutive rainy days) to ensure continuous power supply reliability.

  • How does an off-grid system ensure power supply during continuous cloudy or rainy days?

    It primarily relies on the energy reserve of the storage batteries. The system design must include sufficient battery capacity to withstand periods without sunlight. A diesel generator can be configured as a backup power source when necessary.

  • What is the difference between off-grid inverters and grid-tied inverters?

    Off-grid inverters need to generate stable voltage and frequency references independently (simulating the grid) to power loads autonomously, while grid-tied inverters must synchronize with the grid's voltage and frequency.

  • What are the requirements for load starting characteristics in off-grid systems?

    Off-grid inverters must withstand the high instantaneous current (inrush current) when starting loads (e.g., motors, water pumps). Peak power capability is one of the key criteria for inverter selection.

  • What are the key maintenance priorities for off-grid energy storage systems?

    The focus includes regularly inspecting battery health (voltage, fluid levels, terminal corrosion), cleaning solar panels to maintain generation efficiency, and monitoring the operational status of power electronic equipment.