Hellenic Navy: €5 million framework agreement with Siemens Energy for urgent repairs on Type 209 and Type 214 submarines

The Hellenic Navy General Staff (HNGS) now has a contract with Siemens Energy for repairing faults on its Type 209 and Type 214 submarines. It is Framework Agreement 28/26, worth €5,000,000 and lasting three years, signed by the HNGS Contracts Directorate (HNGS/E2) and “SIEMENS ENERGY Single-Member S.A.” on September 23, 2026 in Cholargos. The contract was posted on the Central Electronic Public Procurement Register (KIMDIS) on November 11, 2026 (ADAM 26SYMV020169112).

Its subject, as the text puts it, is “the provision of technical and logistic support services that will cover immediate, urgent and emergency faults of Type 209 and Type 214 submarines.” It is therefore not an upgrade programme but an “open” framework from which the Navy will cover the faults that arise in Siemens systems on the submarines.

The systems it covers

The agreement lists seven categories of systems:

• The propulsion system and propulsion motor of the Type 214 and Type 209/2.
• The fuel-cell system (fuel cell modules) of the Type 214 and of the submarine Okeanos.
• The Engineering Monitoring Control System (EMCS) of the propulsion plant of the Type 214.
• The main electrical power distribution boards of the Type 214 and Type 209.
• The “Automatic Speed Control” and “DC Automatic Starters” start-up, holding and operation system of the Type 209.
• The automatic circuit breakers of the main electrical installation of the Type 214 and Type 209, together with the upgrade and certification of the test bench of the circuit-breaker workshop at Salamis Naval Base.
• Emergency or critical faults in Siemens-made systems.

For each system the work is the same: investigation of the fault, repair or replacement of materials, shipment of materials to the company’s facilities in Germany when needed, supply of spare parts and special tools, upgrade or parameterisation of software, functional tests, personnel training and daily work reports.

The reference to Okeanos is no accident. It is the Type 209 that was upgraded with a fuel-cell air-independent propulsion (AIP) system, which is why it falls in the same category as the Type 214s. For the Type 214s, see our analysis of the Hellenic Navy’s underwater warfare capabilities.

Financial details and procedure

The total value is €5,000,000, including withholdings, exempt from VAT. Funding comes from the HNGS regular budget. The services fall under CPV codes 31700000-3 (electronic, electromechanical and electrotechnical supplies) and 50241000-6 (ship repair and maintenance services).

The award was made through a negotiated procedure without prior publication, under Article 32 of Law 4412/2016, following invitation 43/25. The result was awarded to Siemens Energy by decision of HNGS/E2 in July 2026. The agreement was signed by the Director of HNGS/E2, Captain Panagiotis Pavlopoulos, and for the company by Michail Kioumourtzidis and Eleftherios Plafountzis.

As a framework agreement, it does not by itself commit the whole amount. The €5 million is the ceiling for the individual implementing contracts that will be signed whenever a fault occurs within the three years.