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Optimizing Rail Energy Project Delivery with BIM and Autodesk Construction Cloud

Agenda

 Who we are “DB Energie GmbH”

 Network expansion “S-Bahn Hamburg”

 What is a rectifier plant?

 Application of BIM using a practical example (Neuwiedenthal rectifier plant)

DB Energie GmbH a subsidiary of DB AG

€4.0 billion in revenues

in 2023

187

refuelling

stations supply trains on

non-electrified lines

5,400

stations supplied with

power, gas

and heat

20,000

trains supplied

with electrical

power every day

7,956

kilometres of company-owned traction

power network ensures a

reliable power supply

More than 2,000

employees working for more

sustainability

and efficiency

53 power plants, RFC stations and SFC

stations in use

1,833

transformer

stations ensure the right voltage

Facts and figures

Traction power Stationary energy Services

Network expansion “S-Bahn Hamburg”

 Significant population growth expected in Hamburg until in

the 2030s

 Expansion of local public transport system for

environmental reasons

 extreme overload of the S-Bahn corridors

2018 Project start

September 2024 Official start of construction and groundbreaking ceremony

November 2024 Conclusion financing

agreement

December 2028 Introduction for the new long trains at S2

December 2029 Planned

commissioning S6 south for train table

change

More and longer trains from and to Bergedorf

at S2

New S-Bahn line S6 into the south

of Hamburg

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Most of the trains on the Hamburg S-

Bahn network run on direct current. This

is taken from a conductor rail installed

next to the track. The alternating current

drawn from the tractionpower grid is converted from alternating current to the

requiredAC voltage to the required DC

voltage.

Text ersetzen

(englisch)

Most of the trains on the Hamburg S-Bahn network run on direct current. This is taken from a conductor rail installed next to the track. The alternating current drawn from the traction power grid is converted in the so-called rectifier plant from AC voltage to the required DC voltage.

alternating current 25 kV/50 Hz

direct current 1,2 kV/DC

return conductor

Feeding renewable energies into

the traction current grid. The Hamburg S-Bahn is already running on 100 percent green electricity.

Rectifier plant Here the energy is converted by transformers and rectifiers into the required overhead line voltage.

Direct current 1.2 kV The converted overhead line voltage is transmitted to the conductor rail via cables.

Return conductor cable The return conductor cables ensure that the circuit is closed and the current can flow back to the source.

Lateral conductor rail The conductor rail is used to supply the trains with electrical energy by transmitting the necessary current to the traction unit via sliding contacts. It runs along the tracks and ensures a continuous power supply.

switchgear 25 kV alternating current

transformer 25 kV/0,965 kV 50 Hz

rectifier 0,965 kV 50 Hz

1,2 kV direct current voltage (0 Hz)

The current changes its direction of flow. The frequency is 50 Hz.

The direction of flow remains the same.

switchgear 1,2 kV direct current

What is a rectifier plant?

Neuwiedenthal rectifier plant Preliminary and design planning

done

Approval planning In Progress

Award of construction

contract February 2026

Planned start of construction August 2026

Planned commissioning

March 2028

Focus of this presentation

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How we work

CDE: Autodesk Construction Cloud

o Document filing system

o Issue Management

Regular discussions on the model (every 2 weeks)

Approval process (technical and financial) for the design planning

Additional roles:

o BIM planner

o BIM coordinator

Additional Software: Revit for model design

Detail ACC Issue management

Nr. 45 Labeling was used twice at switch

cabinet

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Design planning approval process: Conventional vs. BIM

Review by operator

Revision of planning

Conventional testing and approval

Testing and approval with BIM

Completed/renewed design planning

approx. 2-4 weeks,

Completed design (model)

Review by operator and project team, with VR-Glasses Revision of planning

based on defined issues

+ check operator

approx. 0-2 weeks

approx. 1 day

Average 1-2 Loops

No Loop, 1 Process

Total time approx. 3,5 weeks

Total time approx. 6 weeks

PDF/Paper

Model/ACC Model/ACC

approx. 2 weeks before date of review

Model/ACC

approx. 1,5 weeks

What we noticed, where do we have added value?

 More than 100 tasks documented → Nothing gets lost!

 Higher level of detail than usual already in design planning

o Earlier clarification of technical dependencies, as required for model creation

o Specialized models enable collision checks

 Advantages of checking and approving design planning

 Environment model

o Easier to present to people not involved in the project -> leads to greater understanding and acceptance during approval planning

Thank you

Optimizing Rail Energy Project Delivery with BIM and Autodesk Construction Cloud

teresa.tietz@deutschebahn.com,

daniel.dn.lehmann@deutschebahn.com

Teresa Tietz & Daniel Lehmann

QR-Code inside Neuwiedenthal rectifier plant

mailto:Teresa.tietz@deutschebahn.com

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Q&A

Vortrag Folie 1: Optimizing Rail Energy Project Delivery with BIM and Autodesk Construction Cloud Folie 2: Agenda Folie 3: DB Energie GmbH a subsidiary of DB AG Folie 4: Network expansion “S-Bahn Hamburg” Folie 5 Folie 6: Neuwiedenthal rectifier plant Folie 7: How we work Folie 8: Design planning approval process: Conventional vs. BIM Folie 9: What we noticed, where do we have added value? Folie 10: Thank you Folie 11: Q&A