R1.08/03A - Bilibino NPP - Modernisation of an emergency power supply system (EPSS) (AP ref 7.1.1.3-8)

In the framework of the TACIS 1995 programme, it was decided to initiate a project for the re-design and reconstruction of the Emergency Power Supply System of Bilibino NPP. The initial stages of the project preparation were included as part of a large contract between the EC and the Twinning Programme Engineering Group (TPEG) consortium (see contract 23631). TPEG assigned the task to ENEL.
ENEL immediately began an analysis of the emergency systems, based on probabilistic models, which led to some indications on Emergency Power Supply System components' implementation or replacement.
A visit to Bilibino NPP, which was originally foreseen at the end of 1996 and postponed for bad weather conditions in Chukotka, was performed by the ENEL experts in the period from the July 30 to August 5, 1997.
The visit, in addition to the visual inspection of the overall system to evaluate the status, the working conditions, the location of the existing components and to obtaining relevant information from the system operators, had the purpose of defining an agreed set of components to be implemented or replaced either in the framework of the TACIS 95 or in the framework of the TACIS 97 Programme.
Four Specific Projects were identified and in detail:
TACIS 95 Programme (see project R1.08/95)
Replacement of Emergency D/G Switchboards
Replacement of Emergency Circuit Breakers
Replacement of Telephone Exchange System
TACIS 97 Programme (project R1.02/97D, which was cancelled and reprogrammed in the TACIS 2003 programme as R1.08/03A; the present project)
Substitution of 2,5 MW Gas Turbine with 2x1,25 MW Diesel generators
ENEL prepared, among other documents, a report on the redesign of the Electrical Power Supply System a well as four purchase Technical Specifications for each of the above mentioned replacement projects.
The tender procedure for R1.02/97D was unsuccessful due to the one tender received not being technically compliant with the tender technical requirements. The EC decided to revise the Technical Specifications, cancel the R1.02/97D project, re-programme it as R1.08/03A and re-launch the call for tender.

The objective of the project was to improve the reliability of the emergency power supply systems of Bilibino Nuclear Power Plant through the delivery and installation of Diesel Generator Sets (D/G Sets) for the Backup Diesel Power Station (BDPS).
The subject of the contract was the design, manufacturing, delivery, factory acceptance inspection and testing, certification, support during licensing, supervision of installation and commissioning, provision of documentation, training and instruction in the use of the purchased Diesel Generator Sets. The scope of supply also included spare parts and special tools.
The scope of the project is described in more detail in the attached extract of the Technical Specification. The scope of the supplies specified in the Call for Tender was divided into two parts, the objective being to be able to purchase either one or two Diesel Generator sets depending on the available budget and the price offered by the tenderer.
In the event it was possible to purchase both sets.
The Contractor was responsible for delivery of the equipment to Moscow only. The End User was responsible for the transportation of the supplies from Moscow to Bilibino NPP. The End User was also responsible for the installation of the equipment. The Contractor had to supervise the installation activities.

The call for tender was launched in September 2005 and the tender evaluation was performed between 21 and 24 November 2005. A contract was signed with the successful tenderer Technoserv on 24 June 2006.
The contract was signed in April 2006.
The Diesel Generators were successfully delivered and installed at the NPP within one year of contract signature. A warranty period of 2 years followed the installation.