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System Composition and Working Principle

The Indevolt micro energy storage system is an intelligent residential energy storage solution designed for home and small-scale energy usage scenarios. It is suitable for users who:

  • Have limited indoor or balcony space but want to use energy storage devices
  • Have installed or plan to install solar PV systems and want to store daytime solar energy for nighttime use
  • Do not have solar PV installed but want to reduce electricity costs through time-of-use pricing
  • Want better visibility and control over household energy consumption

In simple terms, the system stores electricity and releases it at more suitable times.

How Does the System Work?​

The Indevolt micro energy storage system includes multiple product models. Different models may have different interface configurations and usage scenarios.

SolidFlex 2000 / PowerFlex 2000​

These models are suitable for new PV users and can be directly connected to solar panels to achieve:

  • Direct PV charging of batteries
  • PV priority power supply
  • Using stored energy during nighttime or peak electricity periods to reduce electricity costs

Typical workflow:

  1. During daytime sunlight, PV modules generate electricity, which is first supplied to household appliances.
  2. If there is surplus energy, the system automatically stores it in the battery module.
  3. During nighttime or peak demand periods, when PV generation is insufficient, the system draws energy from the battery to supply household loads.

The system operates automatically based on your settings and current energy usage. You can monitor status through the app.

SolidFlex 2000 ECO / PowerFlex 2000 ECO​

The ECO series does not include DC PV input ports and cannot directly connect to PV modules.

Main characteristics:

  • Connects to the grid via household AC sockets
  • Charges batteries during low electricity price periods
  • Supplies power from the battery when electricity prices are high or when needed

Suitable for the following scenarios:

  • Retrofit installations combined with existing PV systems (AC-coupled energy storage)
  • Regions with time-of-use electricity pricing to reduce energy costs
  • Portable or backup power usage

Typical workflow:

  • During low-price periods: the system draws electricity from the grid to charge the battery
  • During high-price periods: household loads are powered primarily by the battery
  • When battery level is low or reaches the configured threshold: discharge stops and power supply switches back to the grid. Charging resumes in the next low-price period

All operations are fully automatic and can be monitored through the app.

System Components​

The entire energy storage system consists of several core modules.

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Interface configurations may vary slightly between models. Please refer to the purchased model for details.

1. Power Module​

The power module is the core control module of the system, responsible for determining how electricity is used.

Its main functions include:

  • Converting DC power generated by PV or batteries into AC power for household use
  • Determining whether electricity should be used directly, stored in the battery, or released from the battery
  • Monitoring system status in real time to ensure safe and stable operation
  • Enforcing power limits and grid connection control strategies
  • Communicating with the app via Wi-Fi to receive settings and upload operational data

2. Battery Module​

The battery module serves a simple purpose: energy storage and release.

  • Stores excess PV energy
  • Releases energy during nighttime, cloudy weather, or peak electricity periods
  • Modular design allows capacity expansion according to needs
  • Can be stacked directly with the power module for compact and easy installation

If energy demand increases, system capacity can be expanded by adding battery modules.

3. Photovoltaic Module (Optional)​

PV modules convert solar energy into electricity and are one of the primary energy sources of the system.

  • Typically installed on balconies, terraces, or other areas with good sunlight exposure
  • PV energy is prioritized to supply household loads during daytime
  • Excess energy can be stored in batteries
  • Helps reduce dependence on grid electricity and lower energy costs
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  • SolidFlex 2000 / PowerFlex 2000 ECO series do not include PV interfaces and do not support direct PV module connection.
  • Even without PV installation, all models can be used as standalone energy storage devices.

4. INDEVOLT App​

The INDEVOLT App is the primary interface for interacting with the energy storage system.

Through the app, you can:

  • Monitor real-time generation, consumption power, and battery level
  • Configure energy strategies such as self-consumption priority and charge/discharge schedules
  • Manage devices and perform firmware upgrades
  • Check system operating status at any time

5. Accessories and Auxiliary Components​

To ensure system stability and safety, the system also includes necessary accessories such as:

  • Power cables for household socket connection (power is subject to system design and local grid regulations)
  • Mounting brackets and fastening components for secure installation

All accessories are configured according to system design requirements to ensure compatibility and safe operation.