Construction of a new "future-proof" information system for the collection, archiving, and visualization of technological information from the gas transmission network of "Bulgartransgaz" EAD (SCADA or system) for the northwestern operational region (SZER) Botevgrad
About This Opportunity
This is a supplies contract in the trade and industry sector. Located in Bulgaria, Europe, this opportunity is open to firms and consortiums, with an estimated budget of EUR 5.3 million. Proposals must be submitted before June 26, 2026.
Published through TED - Tenders Electronic Daily (EU), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for the supply of goods in the trade and industry sector. Supply contracts typically require bidders to demonstrate product compliance with technical specifications, delivery capacity, and relevant certifications. Interested parties should review the full documentation on the original source before submitting their proposal.
Description
Auto-translated from bgThe subject of this order is engineering execution, including design, equipment delivery, construction, and implementation of an information system for control, collection, archiving, and visualization of technological information system (SCADA) in SZER Botevgrad, including stages and activities according to the technical specification, namely: Stage 1 – Audit of the existing situation and preparation of a working design, including: 1. Study of the existing condition and available technical documentation; 2. Recording the logic of the existing information system; 3. Defining a cybersecurity concept for the new SCADA; 4. Preparation of a working design for the execution of the order; Stage 2 – Delivery of necessary licenses, software, hardware, and associated components, development software, and necessary hardware for system maintenance; Stage 3 – Development of user software and conducting factory acceptance tests; Stage 4 – Activities for installation and commissioning of the SCADA system, including: 1. Installation of all SCADA equipment; 2. Installation of necessary RTUs and protocol converters, where required, integration of existing PLCs compatible with SCADA, dismantling of equipment used by the old WPS32 information system that is being decommissioned; 3. Conducting functional tests and verifying system operation; Stage 5 – Training of the Contracting Authority's personnel for usage (operational use), administration, configuration, and maintenance of the system; Stage 6 – Preparation of operational documentation; Stage 7 – Warranty maintenance and warranty period, which include: 1. Warranty support for the SCADA system; 2. Warranty period for the delivered technical equipment in connection with the execution of the order. The region covers Northwestern Bulgaria and serves the northern route of the national gas transmission network. It starts from GIS "Lom Cherkovna" – the border with SZER "Valchi Dol" and ends at GIS "Bogdanliya", where the border with YUZER "Ihtiman" is. The region includes two compressor stations: • CS "Polski Senovets", covered by Siemens' DCS system PCS7 and communicating with WPS32 via OPC-DA interface. • CS "Rasovo" under the management of Honeywell Experion PKS SCADA OPC UA system. • GIS "Kalotina" data exchange via OPC UA • GIS "Zaychar" data exchange via Modbus TCP/IP Additionally, the region includes: • 32 pcs. AGPS/GPS for end-users connected to the gas pipeline system; 28 of them are implemented using Sigma controllers, with 5 of them having GPRS/Sim communication. 4 AGPS/GPS are implemented with Siemens PLC. The number of gas correctors is 103 pcs. CF600. • 8 pcs. GIS for end-users connected to the gas pipeline system; Implemented with Sigma controllers. The number of gas correctors is 9 pcs. CF600. • 20 pcs. Valve stations and branches implemented with Siemens PLC • 28 pcs. Valve stations and branches implemented with Sigma controllers. Of these, 25 have GPRS/Sim communication and are powered by solar panels. • 7 pcs. Gas cleaning facilities (SOG) implemented via Siemens PLC • 47 pcs. Electrochemical protection (EZh) of the gas pipeline – it is necessary to provide 47 pcs. Modbus Gateway converters of Modbus RTU/TCP IP protocol type. The replacement of the existing information system must be carried out in such a way that the operation of the operational personnel is not disrupted and data loss does not exceed 72 hours. The contractor must provide a methodology for migration from the existing to the new SCADA, including the period when both will operate in parallel. The new SCADA must have all the functionalities of the existing system. This includes, but is not limited to, trends, reports, alarms, user screen organization, communication with external systems. The industrial network must be physically or logically separated from the administrative network. Logical separation is achieved through the use of VLAN technology on Ethernet switches. Protective measures must be provided...
Data provenance
This notice is sourced from TED - Tenders Electronic Daily (EU) and was originally published on May 26, 2026. Last refreshed 12 days ago. Original language: bg. BidsFactory mirrors official procurement notices and links back to the source for full legal text.
About БУЛГАРТРАНСГАЗ ЕАД
БУЛГАРТРАНСГАЗ ЕАД has issued 34 procurement notices on BidsFactory, including 1 currently open and 24 awarded contracts. Activity concentrates in Architecture & Engineering Services, Construction & Civil Works, and General Supplies & Services. All notices are published for Bulgaria. Notices are distributed via TED - Tenders Electronic Daily (EU). Most recent publication: June 18, 2026.
Frequently asked questions about this tender
When does this tender close?
The submission deadline is June 26, 2026. You have 4 days left to prepare and submit your proposal to the contracting authority.
Who is the contracting authority?
This notice was issued by БУЛГАРТРАНСГАЗ ЕАД in Bulgaria. The authority is responsible for evaluating bids, awarding the contract, and managing performance.
What type of contract is this?
This is a Supplies contract in the Industry & Manufacturing sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.
What is the estimated budget?
The estimated contract value is €5,317,436 - €5,317,436. Bidders should ensure their proposals are consistent with this range and account for any local taxes and contract execution costs.
Where will the contract be performed?
The contract is for delivery in Bulgaria. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.
How can I submit a bid?
Visit TED - Tenders Electronic Daily (EU) to access the full notice, required documents, and submission instructions provided by the contracting authority.
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