# Framework Agreement for the Delivery of Control Systems (IEC104) and the Provision of related services Open · Tender ## At a glance TenneT TSO GmbH is procuring Electrical apparatus for switching or protecting electrical circuits (CPV 31210000). The notice states an estimated value of €6,500,000 excl. VAT. Procedure type: Negotiated with prior publication of a call for competition / competitive with negotiation. ### From the notice Framework Agreement for the Delivery of Control Systems (IEC104) and the Provision of related services TenneT is a leading European transmission system operator responsible for the safe and reliable transmission of electrical energy over long distances. TenneT’s core tasks include the expansion and maintenance of the transmission grid, the integration of renewable energy sources, and the assurance of grid stability. TenneT’s grid area covers large parts of Germany and the Netherlands and includes both onshore and offshore connections. As an operator of critical infrastructure, the security and reliability of the systems in use are of particular importance. The aim of this tender is the establishment of two framework agreements for the procurement of substation Control Systems, in particular Intelligent Electronic Devices (IEDs) and field control units, for use in TenneT TSO GmbH’s (TTG) high‑voltage and extra‑high‑voltage substations. The systems to be procured are intended for control, monitoring, signalling and automation purposes within substations and are a key element of secure and reliable grid operation. Within the scope of this tender, TTG intends to procure Control System components including, but not limited to, bay control units, station control units, interface devices, and related auxiliary equipment. A central focus of the procurement is the use of the communication protocol IEC 60870‑5‑104 (IEC 104) for the exchange of control, status and measurement data between the substation level and higher‑level control systems. The devices shall support typical substation automation functions, reliable IEC 104 communication, and seamless integration into existing station control concepts in accordance with applicable technical standards. The subject of this tender is the supply of Control Systems hardware, including IEDs and associated components, as well as related documentation and services necessary for commissioning and integration into TTG’s substations. The framework agreement shall enable TTG to call off devices on demand over the contract term for new installations, refurbishments, and replacement purposes. Parallel to the hardware framework agreement, TTG intends to conclude a separate service contract covering the maintenance of the devices and the maintenance of embedded software, including corrective and preventive measures as well as software updates and upgrades, in accordance with the contractual provisions. Due to increasing requirements regarding system availability and redundancy, the procurement procedure is structured into two lots, which will be awarded separately. The lot structure is intended to ensure supply security, operational resilience and redundancy of the Control Systems deployed within TTG’s transmission grid. TenneT TSO GmbH is certified according to ISO 27001. Therefore, only Control Systems and equipment that comply with TTG’s Operational Technology security requirements may be offered (OT security and IT security requirements). Tender Documents To participate in the tender, please complete the Non‑Disclosure Agreement below and send it via email to: \[…\] Access to the additional tender documents will be granted immediately upon receipt and review of the document. TenneT TSO GmbH will treat the documents you submit and the trade and business secrets contained therein as confidential in accordance with Section 5 of the Sector Ordinance. ## Key facts - Status: Open - Deadline: No deadline in the notice - Published value: €6,500,000 excl. VAT - Buyer: [TenneT TSO GmbH](https://inteliwert.com/company/org_9YDHBBX09VQG4W3P4SD5M5JYVQ/tennet-tso-gmbh), Bayreuth, DE - Main CPV: Electrical apparatus for switching or protecting electrical circuits (CPV 31210000) - Procedure: Negotiated with prior publication of a call for competition / competitive with negotiation - Lots: 1 - First published: 18 June 2026, 11:31 (UTC+00:00) Source: [Official notice](https://oeffentlichevergabe.de/ui/de/notices/ddc9aa25-0fde-4034-9cae-732b4e7c2919). Each fact is from the official notice, last checked 11 November 2026, 14:31 (UTC+01:00). Fact sheet: [Inteliwert fact sheet: Framework Agreement for the Delivery of Control Systems (IEC104) and the Provision of related services — TenneT TSO GmbH. A product of Bandpey GmbH.](https://inteliwert.com/cards/opp_KVZKP0QAB0DYQT9FG49SSPB7V4/ntv_N340WV8RK03PHXZXNWVH5MCSG7/en-sheet.png) (PNG, 1600 × 900) ## Lots (1) ### Lot LOT-0000: Framework Agreement for the Delivery of Control Systems (IEC104) and the Provision of related services Framework Agreement for the Delivery of Control Systems (IEC104) and the Provision of related services TenneT is a leading European transmission system operator responsible for the safe and reliable transmission of electrical energy over long distances. TenneT’s core tasks include the expansion and maintenance of the transmission grid, the integration of renewable energy sources, and the assurance of grid stability. TenneT’s grid area covers large parts of Germany and the Netherlands and includes both onshore and offshore connections. As an operator of critical infrastructure, the security and reliability of the systems in use are of particular importance. The aim of this tender is the establishment of two framework agreements for the procurement of substation Control Systems, in particular Intelligent Electronic Devices (IEDs) and field control units, for use in TenneT TSO GmbH’s (TTG) high‑voltage and extra‑high‑voltage substations. The systems to be procured are intended for control, monitoring, signalling and automation purposes within substations and are a key element of secure and reliable grid operation. Within the scope of this tender, TTG intends to procure Control System components including, but not limited to, bay control units, station control units, interface devices, and related auxiliary equipment. A central focus of the procurement is the use of the communication protocol IEC 60870‑5‑104 (IEC 104) for the exchange of control, status and measurement data between the substation level and higher‑level control systems. The devices shall support typical substation automation functions, reliable IEC 104 communication, and seamless integration into existing station control concepts in accordance with applicable technical standards. The subject of this tender is the supply of Control Systems hardware, including IEDs and associated components, as well as related documentation and services necessary for commissioning and integration into TTG’s substations. The framework agreement shall enable TTG to call off devices on demand over the contract term for new installations, refurbishments, and replacement purposes. Parallel to the hardware framework agreement, TTG intends to conclude a separate service contract covering the maintenance of the devices and the maintenance of embedded software, including corrective and preventive measures as well as software updates and upgrades, in accordance with the contractual provisions. Due to increasing requirements regarding system availability and redundancy, the procurement procedure is structured into two lots, which will be awarded separately. The lot structure is intended to ensure supply security, operational resilience and redundancy of the Control Systems deployed within TTG’s transmission grid. TenneT TSO GmbH is certified according to ISO 27001. Therefore, only Control Systems and equipment that comply with TTG’s Operational Technology security requirements may be offered (OT security and IT security requirements). Tender Documents To participate in the tender, please complete the Non‑Disclosure Agreement below and send it via email to: \[…\] Access to the additional tender documents will be granted immediately upon receipt and review of the document. TenneT TSO GmbH will treat the documents you submit and the trade and business secrets contained therein as confidential in accordance with Section 5 of the Sector Ordinance. - CPV: Electrical apparatus for switching or protecting electrical circuits (CPV 31210000) - Published value: €6,500,000 excl. VAT ## Timeline - 18 June 2026, 11:31 (UTC+00:00): Original notice, Notice, version 01 (Contract or concession notice – standard regime), [Official notice](https://oeffentlichevergabe.de/ui/de/notices/ddc9aa25-0fde-4034-9cae-732b4e7c2919) ## Classification - CPV codes: Electrical apparatus for switching or protecting electrical circuits (CPV 31210000) ## Official documents No documents found in the indexed notice. ## Questions and answers ### Who is the buyer? TenneT TSO GmbH, Bayreuth, DE. ### What is being procured (CPV)? Electrical apparatus for switching or protecting electrical circuits (CPV 31210000). ### What is the estimated value? The notice states an estimated value of €6,500,000 excl. VAT. ### Is it divided into lots? No, the notice names a single lot. ### Which procedure is used? Negotiated with prior publication of a call for competition / competitive with negotiation. ### How do I submit a bid? On the official notice or the portal it names. Inteliwert does not submit bids. [Official notice](https://oeffentlichevergabe.de/ui/de/notices/ddc9aa25-0fde-4034-9cae-732b4e7c2919) ### Am I eligible? Inteliwert does not judge eligibility. The selection criteria are in the official notice. [Official notice](https://oeffentlichevergabe.de/ui/de/notices/ddc9aa25-0fde-4034-9cae-732b4e7c2919) ## More from this buyer Other published opportunities of this buyer in the indexed notices, open ones first. - [D952 - NordWestHub - Vergabepaket 2.2 - innere Erschließung (Preloading, Entwässerung; Verkehrsanlagen und Medien)](https://inteliwert.com/tender/opp_1WRZ9WZX01VX0V6P985RDBYTJ9/d952-nordwesthub-vergabepaket-2-2-innere-erschliessung-preloading-entwaesserung-) Open · Buyer: TenneT TSO GmbH · Place: DE94G (Niedersachsen) · Published value: €76,368,956 excl. 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Inteliwert shows what the notice states and links to it. --- Page: https://inteliwert.com/tender/opp_KVZKP0QAB0DYQT9FG49SSPB7V4/framework-agreement-for-the-delivery-of-control-systems-iec104-and-the-provision Inteliwert is a product of Bandpey GmbH, an international data and AI software company in Munich, Germany, founded and led by Roozbeh Bandpey. Bandpey's products: Facthory, Emolysis, Copolly and Inteliwert. Inteliwert on LinkedIn: https://www.linkedin.com/company/intelliwert, GitHub: https://github.com/inteliwertai.