Power Plant Controller

Power Plant Controller

Feed-in management made easy

With its fast and direct control, the SMA Power Plant Controller guarantees the maintenace of setpoints for responding to requirements from the PV power plant and the utility grid to both plant- and grid operators. It controls PV power plants in accordance with the requirements of the grid operator and, through the adaption of active- and reactive power, contributes to the stabilization of the utility grid. Thanks to the fast implementation of control commands, it ensures the highest possible system availability at all times.

Maximum Yields - Stable Utility Grids

The Power Plant Controller guarantees PV system operators maximum yields and contributes to the stability of public utility grids. It meets the requirements of grid operators worldwide with its ability to regulate voltage, reactive and active power and the power factor at the grid feed-in point quickly and precisely.

The SMA Power Plant Controller allows large-scale PV power plants to meet all needs of modern competitive PV power plants.

Higher Yields for PV System Operators

Quick and precise regulation guarantees PV system operators optimized yields. Downtime can be reduced and smooth plant operation guaranteed. Remote configuration and monitoring reduce maintenance costs in the module array.

Higher Stability for Grid Operators

The Power Plant Controller makes your PV farm's behavior a calculable variable in the utility grid. It meets all grid control requirements, guaranteeing grid stability at all times. The advantage: reliable integration of large PV power plants into public utility grids.

Greater Security for Planners

Implement megawatt-scale power plant projects with SMA solutions. The Power Plant Controller is compliant with grid operators' requirements worldwide. Its compact design allows simple and flexible use in all system topologies.


  • For all plant topologies
  • Modular system concept for individual requirements
  • Simple to expand with new protocols and standards


  • Exact grid voltage control
  • Regulation of active and reactive power and power factor
  • Individual activation of single inverters in the farm


  • Configuration and parameterization via Remote Access
  • Easy installation thanks to compact design


  • Reliable plant operation with minimal downtime
  • Fulfillment of global requirements for grid integration and international plant certification

Extremely quick response times

The SMA Power Plant Controller manages all parametres which are necessary for a constant stability of the grids.

On demand

On demand
New target values for reactive power or the power factor are implemented in a matter of seconds.


Predefined values for reactive power or the power factor are recieved and then implemented on time.

Constant reactive power or a power factor are made available on a permanent basis or by request.


Dynamically specified values for reactive power or powqer factor are managed at the grid connection point.

Ramp Rate Control

Ramp Rate Control
The increase rate of active power is limited.

Continuous Curtailment

Continuous Curtailment
There is a seamless reduction of active power.

Active power control

Active power control
Automatic reduction of active power at a defined grid frequency according to a definable characteristic curve.

Sunny Central CP-XT


SMA inverters like the new Sunny Central CP-XT accomplish the functions of the Power Plant Controller.


Q at Night
PV plants can also provide reactive power at night. Constant or dynamic values are preset.

Dynamische Netzstützung

Dynamic grid support
The inverter stays connected to the grid during voltage drops and supports the grid by feeding reactive power.

The SMA Power Plant Controller manages your profit:

SMA Power Plant Controller

Higher returns for plant operators:

  • Confidence in proven technology for the guarantee of smooth operation
  • Maximum system availability
  • Optimum plant operation according to precise and quick management

Grid operators profit from:

  • Stable grids thanks to predictable PV plant behaviour
  • PV power plants that can easily be connected to transmission lines
  • Stability through highly flexible control functions

Developers can successfully plan their projects with

  • SMA experts that assist in PV plant design
  • Easy commissioning and parametrization
  • Flexible options for all PV plant topologies
  • quick authorization and existing certifications for grid connection