Frankfurt Awards €10.9 Million Electrical Installation Contract for U5 Extension

Stadtbahn Entwicklung und Verkehrsinfrastrukturprojekte Frankfurt GmbH (SBEV) has awarded a €10.9 million contract to R+S solutions GmbH for the electrical installation of the underground section of the U5 tram line extension in Frankfurt am Main. The project covers the complete electrical installation for a new underground station, emergency exit, and tunnel route from Frankfurt Central Station to the ramp structure.

Introduction

Frankfurt am Main is expanding its public transport infrastructure with the extension of the U5 tram line through the Europaviertel district. This major infrastructure project, known as Stadtbahnstrecke B, Teilabschnitt 3, will improve connectivity and support the city's growing population.

As part of this development, SBEV has awarded a €10.9 million contract for the electrical installation of the underground section. The contract, won by R+S solutions GmbH, covers the complete electrical installation for an underground station, emergency exit, and the entire underground route from Frankfurt Central Station to the ramp structure.

The project involves extensive electrical works including transformers, switchgear, emergency power systems, UPS, lighting, safety lighting, and over 200 km of cables and wiring.

Why This Contract Matters

Reliable electrical infrastructure is essential for the safe and efficient operation of urban tram systems. This contract ensures that the U5 extension will have the electrical systems needed for safe passenger transport.

This contract matters because it:

• Supports transport expansion: Enables the extension of the U5 tram line through Frankfurt's Europaviertel
• Major infrastructure project: Part of a significant urban transport development
• Comprehensive scope: Complete electrical installation for underground station and tunnel route
• Significant value: €10.9 million contract
• Quality focus: Evaluation combines Price (70%) and Quality (30%)
• Competitive process: Two bids received

Contract Timeline

• Contract award notice published: 10 August 2026 (OJ S 152/2026)
• Winner chosen: 3 July 2026
• Contract concluded: 20 July 2026
• Coverage start date: Not specified
• Coverage end date: 39 months from start

Contract Overview

SBEV conducted an open procedure under the German Sector Regulations (SektVO) for this procurement. The contract covers the complete electrical installation for the underground section of the U5 tram extension.

Key features include:

• Single lot: Complete electrical installation
• Duration: 39 months
• Value: €10,936,254.08
• Evaluation: Price (70%) and Quality (30%)
• Project location: Frankfurt am Main, from Hauptbahnhof to the ramp structure
• Project type: Underground tram line extension (U5, Teilabschnitt 3 - Europaviertel)

Key Contract Details

Detail	Information
Contracting authority	Stadtbahn Entwicklung und Verkehrsinfrastrukturprojekte Frankfurt GmbH (SBEV)
Winning bidder	R+S solutions GmbH
Contract subject	Electrical installation works (CPV 45311000)
Procedure type	Open procedure (SektVO)
Legal basis	EU Directive 2014/25/EU (Sector Directive)
Awarded value (ex-VAT)	€10,936,254.08
Contract duration	39 Months
Bids received	2
EU funding	None
Covered by GPA	Yes
Evaluation criteria	Price (70%), Quality (30%)
Lowest admissible tender	€10,936,254.08
Highest admissible tender	€14,938,920.74

Project Scope

The contract covers the complete electrical installation for the underground section of the U5 tram extension, including:

Project Location

• Line: U5 tram line extension (Stadtbahnstrecke B, Teilabschnitt 3 - Europaviertel)
• Section: Underground section from Hauptbahnhof Frankfurt to the ramp structure
• Includes: One underground station (GP), emergency exit, and entire underground route
• City: Frankfurt am Main

Electrical Installation Scope

• Transformers: Approx. 2 x dry-type transformers 800kVA / 10kV
• Emergency power: Approx. 1 x emergency generator 410kVA
• UPS system: Approx. 1 x UPS 200kW for 5 minutes
• Distribution boards: Approx. 2 x main low-voltage distribution boards, approx. 33 x sub-distribution boards/metering systems
• Control systems: Smart metering technology, KNX/DALI/CAN-Bus/Siemens S7
• Safety lighting: Battery-operated emergency lighting systems
• Installation components: Approx. 1,440 units (switches, sockets, junction boxes, media ducts, etc.)
• Tunnel sockets: Approx. 57 tunnel socket combinations
• Lighting fixtures: Approx. 1,250 general and safety lighting fixtures, approx. 790 m of cove and linear luminaires
• Emergency signage: Approx. 150 escape route pictograms
• Cables and wiring: Approx. 206,600 m of cables and wires, approx. 700 m medium-voltage cables
• Cable routes: Approx. 10,000 m of cable trays, pipes, and ducts
• Fire protection: Approx. 150 m of fire protection ducts, approx. 12 m² of fire protection panels
• Earthing: Approx. 60 potential equalisation bars, approx. 4,300 m of copper earthing cable, approx. 260 copper cable earthing connectors
• Equipment: Use of aerial work platforms

About the Contracting Authority

Stadtbahn Entwicklung und Verkehrsinfrastrukturprojekte Frankfurt GmbH (SBEV) is a project company responsible for the development of tram and transport infrastructure projects in Frankfurt am Main. SBEV plans and implements major public transport infrastructure projects, including tram line extensions, station upgrades, and associated works. The company is a key player in Frankfurt's urban transport development.

About the Winning Company

R+S solutions GmbH is a large German electrical engineering company based in Fulda, Hesse. The company specialises in electrical installation, infrastructure projects, and complex electrical systems. R+S solutions has extensive experience in major infrastructure projects, including transport and public sector works. The company's winning bid of €10,936,254 was significantly below the highest tender of €14,938,920.74, demonstrating strong value for money.

Procurement Analysis

• Procedure: An open procedure under the German Sector Regulations (SektVO) was used, which applies to procurement in the water, energy, transport, and postal services sectors.
• Competition: Two bids were received, representing limited but sufficient competition for a specialist electrical infrastructure project.
• Evaluation criteria: Price (70%) and Quality (30%). The quality criteria are evaluated according to a criteria catalogue (Leistungsbewertung gemäß Kriterienkatalog).
• Value for money: The winning bid (€10.94 million) was significantly below the highest bid (€14.94 million), a difference of approximately 27%.
• Duration: 39 months, reflecting the complexity and scale of the electrical installation works.
• No EU funding: The project is not financed with EU funds.
• Compliance: The procurement includes requirements for tariff compliance (Tariftreue) and minimum wage compliance (MiLoG).

Additional Procurement Facts

• The contract is covered by the WTO's Government Procurement Agreement (GPA).
• No EU funds were used for this procurement.
• The procurement was not accelerated.
• No dynamic purchasing system was used.
• No framework agreement was used—this is a direct works contract.
• Two bids were received.
• The contract is subject to German sector regulations (SektVO).
• Disputes or review requests fall to the Vergabekammer des Landes Hessen beim Regierungspräsidium Darmstadt.
• The procurement includes requirements for tariff compliance and minimum wage compliance.
• Bieter are required to declare compliance with supply chain due diligence requirements.

Market & Industry Perspective

The German market for electrical infrastructure works in the transport sector is specialised, with a limited number of contractors capable of delivering complex underground electrical installations. This procurement attracted two bids, reflecting the specialist nature of the work.

Key trends in this market include:

• Infrastructure investment: Significant public investment in urban transport infrastructure
• Specialist expertise: Electrical installation for underground transport infrastructure requires specialist skills
• Safety focus: High safety standards for electrical systems in public transport
• Compliance: Increasing regulatory requirements for tariff compliance and supply chain due diligence

The significant price difference between the two bids (€10.94 million vs €14.94 million) suggests that R+S solutions had a competitive cost advantage or a more efficient approach to the project.

Economic Significance

At €10.9 million, this contract represents a significant investment in Frankfurt's public transport infrastructure. The project will:

• Improve public transport: Extend the U5 tram line to the Europaviertel district
• Support urban development: Enhance connectivity in a growing area of Frankfurt
• Create employment: Jobs for electrical engineers, technicians, and construction workers
• Generate tax revenue: The contract supports economic activity in the region

Future Procurement Opportunities

With the contract now awarded, future opportunities include:

• Other sections: Other sections of the U5 extension may be tendered separately
• Other infrastructure projects: SBEV may have other transport infrastructure projects
• Maintenance contracts: Future maintenance of the electrical systems
• Other cities: Similar tram and light rail projects in other German cities

Opportunities for Suppliers

While this contract is awarded, future opportunities exist for electrical engineering companies:

• Other sections: Other sections of the U5 extension may be tendered
• Other infrastructure projects: SBEV may have other transport infrastructure projects
• Subcontracting: Suppliers may find subcontracting opportunities on this or similar projects
• Other cities: Similar tram and light rail projects in other German cities

What Businesses Should Watch

• SBEV's procurement notices for other transport infrastructure projects
• Similar tram and light rail projects in other German cities
• Changes to German sector regulations (SektVO)
• EU funding programmes for urban transport infrastructure
• Trends in sustainable and electric transport infrastructure

GermanyTender Procurement Intelligence

This electrical installation contract is a significant infrastructure project for Frankfurt's public transport system. Several features stand out:

• Scale: Comprehensive electrical installation for an underground tram section with station
• Value: €10.9 million contract for specialist electrical works
• Competition: Two bids received, with the winning bid significantly lower than the second bid
• Quality focus: The 30% quality weighting ensures that technical expertise and methodology are valued
• Regulatory compliance: The procurement includes tariff compliance, minimum wage, and supply chain due diligence requirements

The significant price difference between the two bids suggests that R+S solutions submitted a highly competitive offer. The 39-month duration reflects the complexity and scale of the electrical installation works for an underground tram section.

For suppliers, this procurement highlights the importance of:

• Competitive pricing: Price accounts for 70% of evaluation
• Technical quality: Quality accounts for 30% of evaluation
• Specialist expertise: Demonstrating expertise in electrical installation for transport infrastructure
• Regulatory compliance: Ensuring compliance with tariff, minimum wage, and supply chain requirements

Supplier Takeaways

• Offer competitive pricing—price accounts for 70% of evaluation
• Demonstrate technical quality—30% of evaluation is quality-based
• Show expertise in electrical installation for transport infrastructure
• Ensure compliance with tariff, minimum wage, and supply chain due diligence requirements
• Monitor SBEV for other transport infrastructure opportunities
• Build relationships with project companies in the transport sector

Key Takeaways

• SBEV awarded a €10.9 million electrical installation contract to R+S solutions GmbH
• Project: U5 tram extension underground section from Hauptbahnhof to ramp structure
• Includes: 1 underground station, emergency exit, and 1.1km+ tunnel route
• Scope: Complete electrical installation including transformers, switchgear, UPS, lighting, and 206 km of cables
• Evaluation: Price (70%) and Quality (30%)
• 2 bids received; winning bid €10.94M vs €14.94M
• Contract duration: 39 months
• Procurement under German Sector Regulations (SektVO)

Conclusion

This electrical installation contract represents a significant step forward for Frankfurt's U5 tram extension project. The comprehensive scope of works—from transformers and emergency power systems to over 200 km of cables—will ensure that the new underground section is equipped with safe, reliable electrical infrastructure.

R+S solutions GmbH's successful bid, which was significantly lower than the second offer, demonstrates strong value for money for the public purse. The 39-month project duration reflects the complexity of installing electrical systems in an underground transport environment.

As Frankfurt continues to invest in its public transport infrastructure, further opportunities will arise for electrical engineering companies with the right expertise and capabilities.

Frequently Asked Questions

Q: What is SBEV?

Ans: Stadtbahn Entwicklung und Verkehrsinfrastrukturprojekte Frankfurt GmbH, a project company responsible for tram and transport infrastructure development in Frankfurt am Main.

Q: What is the value of the contract?

Ans: €10,936,254.08 (excluding VAT).

Q: Who won the contract?

Ans: R+S solutions GmbH.

Q: What does the contract cover?

Ans: Complete electrical installation for the underground section of the U5 tram extension, including transformers, switchgear, emergency power, UPS, lighting, safety lighting, and over 206 km of cables.

Q: Where is the project located?

Ans: Frankfurt am Main, from Hauptbahnhof to the ramp structure.

Q: How long is the contract?

Ans: 39 months.

Q: How many bids were received?

Ans: Two bids were received.

Q: What were the evaluation criteria?

Ans: Price (70%) and Quality (30%).

Q: Is this contract funded by the EU?

Ans: No, the procurement is not financed with EU funds.

Source: EU Official Journal, Contract Award Notice 553185-2026, OJ S 152/2026, published 10 August 2026.