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Efficient ways to increase the performance of power grids

The Siemens portfolio for municipalities and distribution system operators (DSOs) addresses the requirements in increasingly complex energy systems – from integrating power from renewable sources to the automated restoration of power after outages and to utilizing data from assets. 

Find out more in detail under the following topics

Concepts for voltage and capacity management

Siemens offers state-of-the-art and economic solutions to efficiently manage voltage increase and overload situations throughout all voltage levels.

Grids are increasingly affected by varying load and feed-in conditions with significant fluctuations in operating voltage. Operators benefit from Siemens’ intelligent design concept for managing voltage and capacity in power grids – without having to invest in costly grid expansions. 


The solutions utilize various approaches to voltage control, depending on the given structures and conditions on-site and in the field. Customized solutions help to achieve maximum efficiency in the entire medium-voltage grid. They also ensure regional and local voltage and grid stability right down to the low-voltage range.



Benefits for grid operators

  • Minimization of new investments through efficient use of existing structures
  • Improved capacity utilization of medium- and low-voltage grids
  • Optimized use of the voltage range with just a few distributed measuring points
  • Automatic monitoring of grid status for operation and planning



Products and components for smart voltage and capacity management

A cost-efficient solution that also provides the basis for advanced outage management

Remote monitoring enables the maintenance staff being sent to the affected grid segment directly.

Advanced outage management requires a detailed overview of the grid status and the ability to control secondary substations. Remote terminal units (RTUs) and feeder condition monitoring devices detect electric faults in distribution grids and transmit fault messages to station control and power control systems. The RTUs receive commands from these systems and switch primary devices such as load breakers in the secondary substation. 



Benefits for grid operators

  • Fast grid fault detection and localization, remote fault isolation, and service restoration
  • Maintenance staff can be directed to the affected grid segment
  • Reduction of grid operating costs and avoidance of outage penalties
  • Easy upgrades to a self-healing solution help to secure investments



Highlight products for remote monitoring and controlling

Self-healing solutions for supply restoration within milliseconds

The self-healing solutions for automated switching, fault isolation, and service restoration allow for a restoration time of less than a minute.

During grid fault periods, operators have to perform many tasks in order to restore power to the healthy section of the distribution grid as quickly as possible. If disruptions affect a larger area, even several outages may occur at the same time. Siemens’ self-healing solutions for automated switching, fault isolation, and service restoration allow operating personnel to fully concentrate on repair work and service crew coordination.



Benefits for grid operators

  • Closed-loop automated switching solution for isolation and service restoration with included load management 
  • Reduced fault localization costs 
  • Reduction of outage times Improvement of distribution grid reliability indicators (e.g. SAIDI, SAIFI) 
  • Open solution can flexibly adapt to existing secondary substations 
  • Extreme workload reduction in the event of several simultaneous faults, e.g. due to rough weather conditions



Highlight products for distributed automated switching solutions in cable grids

Advanced analytics to prevent losses

It is necessary to track the location of the loss and who is responsible for it.

Technical and non-technical losses are both typical challenges for grid operators. In order to track the cause and location of losses, energy measured values for each distribution level and segment are verified. In the low-voltage distribution, energy delivered at the bus bar is compared with revenue meter readings to track the branch and the LV section. Supporting software on Meter Data Management (MDM) and interfacing to SCADA will help to do this in a very efficient way.



Benefits for grid operators

  • Meter Data Management for the calculation of technical losses
  • Identification of energy thefts
  • Automatic dispatch of investigation tickets for service points with suspected non-technical losses 



Highlight products for the detection of losses

Taking an active role in maintenance planning

Data analytics make maintenance of assets easier and more efficient.

Distribution grid monitoring helps to prioritize maintenance deployments and to detect potential faults and failures before they occur. Failure monitoring starts with aging equipment in critical grid substations. EnergyIP Analytics – Equipment Load Management (ELM) leverages existing AMI meter data to allow a preventative maintenance approach for the installed transformers. Using the consumption data for each meter, intelligent algorithms provide instant information on overloaded transformers and equipment that should be investigated or prioritized for replacement.



Benefits of data analytics for asset optimization

  • Improve supply quality and security level
  • Early detection of potential problems based on online insights
  • Historical database for assistance with end-of-life assessment
  • Optimization of CAPEX and OPEX by reducing costly time-based maintenance practices



Highlight products for distribution grid monitoring


Solutions tried and proven in reference projects

Ensuring stable, resilient grids is one of the essential tasks of municipalities and distribution system operators. The products and solutions from Siemens support them in these efforts. Listed below are just some of the reference projects.