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The transmission and distribution systems are two of the main sources of flexibility in the power system. A transmission system operator (TSO) is responsible for the transmission of power from generation sources, i.e. large power plants to large industrial consumers by way of a high voltage power grid.

In addition to power transmission, a TSO is also responsible for procuring ancillary services to balance the electricity supply and demand and ensure the security of supply for all consumers in the power system.

Much larger and more widely branched, the distribution system uses medium and low voltage grid to carry electricity to final consumers. This category of consumers incudes mainly small business consumers and households. The system is operated, developed and maintained by a distribution system operator (DSO).

The transmission and distribution systems play a vital role in providing flexibility in the power system on the way from power plants to consumers.

 See what we have published on network flexibility so far:

  • Grid stability
  • Interview: System operators are evolving to better serve the society

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