Frequently Asked Questions – Transfer of grid management
As of 1 January 2008, TenneT is responsible for the management of all transmission grids with voltage levels of 110 kV and higher. This is a consequence of the Independent Grid Administration Act, which was passed in 2006. In practical terms, this means that the regional grid operators have transferred the ownership to TenneT. The new situation has certain consequences for the parties involved and for the connections of customers connected to the 110 kV and 150 kV grids. An overview of frequently asked questions about the transfer of grid management is provided below.
As of 1 January 2008, TenneT took over responsibility for managing all high-voltage grids with a voltage level of 110 kV or higher in the Netherlands. This management came as a consequence of the Independent Grid Administration Act. TenneT also became the owner of the majority of regional grids across the country in 2009, assuming responsibility for the grids formerly managed by Alliander, Enexis and Delta.
The operational management of the regional grids will be transferred to TenneT in stages in the 2009-2010 period. If the transfer proceeds according to plan, the operational management of the 110-kV and 150-kV grids will be controlled entirely from TenneT’s second National Control Centre in Ede by mid-2010. You will be informed about this process in due time.
The former employees of Essent Netwerk (now Enexis) have been transferred to TenneT. They will be responsible for performing maintenance on the 110-kV and 150-kV grids. Different arrangements have been made with Nuon Tecno and Delta Infra. In the coming years, the performance of maintenance work will be contracted out to these grid operators under service agreements. No arrangement has been concluded as of yet with Stedin (formerly Eneco Netbeheer) regarding the maintenance of their grids.
In the event of a critical power failure, you can contact the Control Centre of your regional grid operator. This arrangement will remain unchanged.
From 1 January 2008 onwards, TenneT has been responsible for all transmission grids with a voltage level of 110 kV or higher. The ‘break’ or grid entry point between the TenneT grid and the transmission grid managed by the regional grid operators is located on the high‑voltage side of the transformers. This means that the regional grid operators remain responsible for managing these transformers. There is one exception: TenneT is and will remain responsible for the 110 kV and 150 kV grids and transformers that it currently manages.
