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Starting from the experience gained in the field of
production systems from renewable sources connected
to the grid, Green ITEC provides solutions for the management of the grid
connected or off grid storage systems.
In the Industrial and Commercial scale in which
Green ITEC operates, essentially two types of storage
systems are provided:

  • connected in parallel to a renewable source
    production plant (photovoltaic, wind, etc) on the a.c.
    side of the PCS; it is defined storage in a.c .. The PCS
    manages the charging and discharging of the battery
    and can be connected to the grid or to a micro-grid
  • connected in parallel to a renewable source
    production plant (photovoltaic, wind) on the d.c. side of
    the PCS; it is defined storage in d.c.. The PCS manages
    the charge and discharge of a battery and the
    renewable source plant and usually it is connected to a
    micro-grid or it supplies off-grid loads
    In any case, CLEANISLAND is able to operate both in “grid
    following” and “grid forming” mode, switching from one to
    the other without voltage drop.
    CLEANISLAND can manage different types of batteries:
    Lithium Batteries, Redox Flow Batteries, Salt Batteries.
    CLEANISLAND is a DSP (Digital Signal Processor) based
    converter system, specifically designed for energy
    storage application and basically present two working
    a) Grid Following – in this working mode the PCS is used
    as a grid tied inverter to connect the energy Storage
    system to the grid or micro-grid with the capability of
    charging the batteries and/or to support the grid in
    feeding the loads.
    b) Grid Forming – in this working mode the PCS become
    the master grid generator; it feeds the micro-grid
    (allowing the operation also to the connected renewable
    energy system) or local loads taking energy from the

• Off Grid/Microgrid
• From microgrid to industrial power, Clean island gives
you the power you need when you need it
Grid forming and following
• Black start
• Ramp rate control
• Power factor correction
• Load and peak shaving
• On Grid/Grid Services
With ultra fast response bi directional 4 quadrant operation, Clean island offer Active and Reactive power services to both industrial and commercial operators
• Voltage control and droop
• Power factor control
• Reactive Power (VAR)
• Frequency regulation and response
• Peak shaving
• Load shifiting
• Accurate and fast ramp rate control
• Black start and EPS