Strukton awarded contract TenneT RenSec 110-150kV
On Wednesday 28 June, TenneT TSO awarded Strukton Systems the contract for the renovation of the secondary installation of the first five stations in the Stedin area of the TenneT framework contract EU-207.
This involves the renovation of secondary installations of the 110-150 kV stations in Driebergen, Oudenrijn, Oudeland, Theemsweg and Merseyweg, including the associated neighbouring stations. The renovation projects are being carried out in compliance with an AV-GC Engineering & Construct (E&C) contract. The first project of the series starts on 21 June 2017 and the last station will be delivered by 4 September 2020.
Start work with TenneT installations
TenneT is currently replacing the secondary installation in its stations. This process immediately offers the opportunity to physically disconnect the shared stations in terms of systems technology from the installations of the Regional Grid Operator (RNB). Traditionally, these stations were managed by the municipal or provincial energy company. As a result of the Network Management Act, TenneT will be responsible for the management of the transport network (high voltage) while RNB will manage the distribution network (medium voltage). Often, the protection and control panels of both high and medium voltage are located in the same building. TenneT now wants to separate these installations both physically and operationally from those of the RNB. The secondary installations will be housed in a prefab concrete building where possible. The related civil engineering, tertiary and telecom work are also included in the scope of this project.
Because these are usually complex installations, and the technology used dates from the 1980s or earlier, good preparation is vital. The stations concerned must also continue to operate as usual. Furthermore, the conversion period (VNB) must be kept to a minimum. Strukton has chosen a plug & play concept in its action plan, whereby all security and control panels will be tested in advance as a combination and all components wired on plugs wherever possible. The functionality will also be combined where possible in a combi box, supplied by Strukton Rolling Stock.
The framework agreement will apply for a period of a minimum of three and a maximum of five years. TenneT awarded this project to Strukton based on the Best Price Quality Ratio (previously EMVI). Strukton received a favourable response to its action plan, the risk file and the interviews with key personnel.