Ultranet is a joint project between Amprion GmbH, TransnetBW GmbH, and Siemens AG to supply converters for grid expansion in Germany. The energy transition is increasing the distance between electricity generation and consumption, requiring additions to the transmission network. Ultranet will involve three new transmission lines and HVDC converters to facilitate long-distance transmission and the integration of renewable energy sources like wind and solar. Siemens will supply full-bridge HVDC converters for Ultranet that offer benefits like high availability, security, and optimal transmission rates.

1. ULTRANET
The energy transition in Germany -
Siemens supplies converters for grid expansion to Amprion and TransnetBW
PK | Converter Factory, Nuremberg | April 8, 2016
Partners for
ULTRANET converters:

2. Page 2Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
The energy transition in Germany –
Siemens supplies converters for grid expansion to Amprion and TransnetBW
1 Dr. Jan Mrosik
Siemens AG
2 Dr. Werner Götz
TransnetBW
3 Dr. Klaus Kleinekorte
Amprion
4 Bernd Jauch
TransnetBW
5 Mirko Düsel
Siemens AG
6 Ludger Meier
Amprion

3. Dr. Jan Mrosik
Siemens Energy Management

4. Page 4Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
The energy transition is transforming power generation
Previously
• Power generation oriented
towards consumption centers
Today
• Nuclear energy is going offline
step by step
• Wind energy is produced
primarily in the north
• Solar energy is produced
primarily in the south
Wind energy
Solar energy
Load centers
Conventional
energy producers

5. Page 5Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
In the future current will have to cross distances >400 km
ULTRANET
• Growing distances between
electricity generation and
consumption necessitate
additions to the transmission
network
• Three new transmission lines
will be built in Germany
• With the converters for the
ULTRANET network expansion
project, Amprion, TransnetBW
and Siemens are partnering to
shape the energy transition

6. Page 6Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Europe also needs new HVDC links
• Large-area balancing of local
power surplus and deficits
• Reliable and economical long-
distance transmission systems,
e.g. for energy trading
Piemonte-Savoie
2 x 600 MW
Cobra
700 MW
Caithness
1000 MW
NEMO
1000 MW
NSN
1400 MW
Biscay
(Study)
Eleclink
1000 MW
Sacoi-3, 400 MW
Corridor A 1000 MW
Corridor C
Corridor D, 2000 MW
Alegro
1000 MW
Greenwire
1000 MW
NordLink
1400 MW
Ultranet
2 x 1000 MW
INELFE
2 x 1000 MW
Storebaelt
600 MW
Western Link
2200 MW
South Westlink
1400 MW
BritNed
1000 MW
COMETA
400 MW
Siemens participation Planned or third-party projects
Moyle
2x250 MW
EstLink 1
3500 MW
EstLink 2
670MW

7. Page 7Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
HVDC links – a global issue
Island interconnections
e.g. Australia-Tasmania
Coupling of asynchronous
systems
e.g. Georgia-Turkey
Long-distance transmission
E.g. Mundra-Haryana, India
Energy trading
e.g. Netherlands-UK
Grid access for offshore
applications
E.g. North Sea platforms
DC for megacities
E.g. Hudson, USA
Bulk-power transmission
E.g. Yunnan-Guangdong, China
“Meshing” direct current
networks

8. Page 8Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
From Germany to the world – Siemens HVDC technology
Converter factory
• HVDC converters
• ~170 employees in 9,000 m²
• ~6,000 to 8,000 MW power
transmission capacity/year
Transformer plant
• HVDC transformers
• ~680 employees in 56,000 m²
• Capacity: 26,000 MVA
Berlin
Bamberg
Nuremberg
Troisdorf
High voltage switchgear
• Circuit breakers
• Surge arresters
• GIS
HSP Hochspannungs-
geräte GmbH
Bushings
Trench Germany GmbH
Instrument transformers

9. Page 9Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Offshore grid links and Interconnector
Interconnector
• Double the power exchange capacity
• Increased supply security
• Integration of renewable energy sources without
endangering grid stability
Offshore grid links
• Dependable grid connection >100 km from the coast
• Currently four Siemens platforms in operation
• BorWin3 commissioning planned for 2019
SylWin 1 HelWin 2
BorWin 2 HelWin 1
INELFE

10. Page 10Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Ultranet – the decisive next step
... partners for the energy transition

11. Dr. Werner Götz
TransnetBW

12. Page 12
Ultranet
Converters
A joint project of
Amprion GmbH and
TransnetBW GmbH
April 8, 2016
Dr. Werner Götz, TransnetBW
Trade press conference in Nürnberg

13. Page 13
• Employees: 580 (January 2016)
• Revenue: € 5.9 billion (fiscal 2014)
• Wholly owned subsidiary of EnBW Energie
Baden-Württemberg AG and certified
independent transmission system operator
• Supply area:
34,600 km²
Power circuit length: 3472 km
Peak power in Baden-Württemberg:
approx. 11 GW
Electricity demand: max. 62 TWh
TransnetBW – the company

14. Page 14
Energy transition - paradigm change
• 450 central power plants vs. 1.5 million distributed
generation points
• Over 30% energy from renewable sources - three times
as much as in 2000 and therefore much more volatile
generation
• Spatial separation of generation and consumption, with
most generation in the north and most consumption in
the south
• Temporary reverse in power flow from lower to higher
voltage level
• Loop flow in neighboring countries
The transition in figures: ~ 1.3 million prosumers in Germany
THE TRANSITION IN FIGURES: ~ 1.3 MILLION
PROSUMERS IN GERMANY
DIMENSIONS OF SUPPLY
SECURITY
• National vs. European:
Own production or copper plate?
• Integration of renewable energy
• System stability

15. Page 15
Energy transition - supply security
Germany’s energy future...
• Long distances between generation
and use
• Power transmission up to 800 km
• European internal electricity market
and trading
• Large volume of fluctuating
renewable generation
... is already here!
BOTTLENECK
2015: Redispatch in high wind (1)

16. Page 16
Energy transition - supply security
2015: Redispatch in high wind (2)
• High wind situations and storm systems (like Niklas) currently lead to feeds of 30 GW
(~ 85 % of installed capacity) from wind turbines.
• Already about 20% of this production has to be reallocated by the TSO.
• Market-related grid interventions are the order of the day.
Source: TransnetBW

17. Page 17
Energy transition - supply security
2015: Overloading of “side routes” in other countries
Source: TransnetBW,
D-1-Handelsflüsse & Lastflüsse, Augusttag 2015.
• Heavy north-south trade flows
towards south and southeast Europe
• Strong physical transit flows
e.g. via Poland, Czech Republic and
Slovakia and further south
• Stress on foreign networks
Example from August 2015:
Because of unavailability of additional KW,
Poland could not meet its electricity
demand and had to cut off industrial users.
CH
CZ
AT
FR SK
HU
PL
LT
IT
DE
0
Im 0
76,06 €
Ex 1626
32,13 €
Ex 7435
31,40 €
Im 3176
31,40 €
Im 1928
35,06 €
9131349
1800
trading volume (day-ahead) (MW)
physical flows(DACF) (MW)
589
0
262

18. Page 18
Energy transition - supply security
2023: Continued progress of energy transition
Source: NEP 2025, 2nd draft of Feb. 29, 2016
Decrease in controllable generation Increase in renewable capacity

19. Page 19
The energy transition - ULTRANET as a solution module
• Planned new DC transmission corridors in Germany
Length 2600 or 3100 km (depending on the scenario)
Transmission capacity 12 GW
To Belgium, Denmark, Norway: 200 km
• AC grid new construction planned
Length 900 to 1100 km
• DC/AC grid strengthening planned
Length 5200 or 5800 km (depending on the scenario)
• Investment volume:
27 to 34 billion euros (depending on the scenario and
amount of wiring)
The need has been officially confirmed and set by law.
New transmission paths
Source: NEP 2025, 2nd draft of Feb. 29, 2016

20. Dr. Klaus Kleinekorte
Amprion

21. Page 21
ULTRANET
A joint project of
Amprion GmbH and
TransnetBW GmbH
April 8, 2016
Dr. Klaus Kleinekorte, Amprion GmbH
Trade press conference, Nuremberg

22. Page 22
Amprion – the capable energy grid
Platzhalter für ein Bild
~29 MILL.
people
are supplied with energy
by the Amprion.
11,000 KM
is the size of the
Amprion transmission
grid.
~59 GW
is the total capacity of all
power plants in the Amprion
grid.
1100
employees work at
Amprion.

23. Page 23
ULTRANET key figures
• 340 km
• Transmission capacity: 2 Gigawatts
• Voltage level: ±380 kV
• Use of existing lines
• Mostly hybrid lines: Direct and alternating
current on the same mast
• The capacity of the line rises without
much change in appearance.

24. Page 24
How ULTRANET works

25. Page 25
ULTRANET – Direct and alternating current on the same mast

26. Bernd Jauch
TransnetBW

27. Page 27
Ultranet
Converters
A joint project of
Amprion GmbH and
TransnetBW GmbH
April 8, 2016
Bernd Jauch, TransnetBW
Trade press conference, Nuremberg

28. Page 28
ULTRANET technical – a communications challenge
Analysis of the barrier of
distance
Converter site search
High-voltage direct-current
transmission
Electromagnetic
fields
AC/DC
GIS substation
Federal planning
NEP
Transmission
line conductor
Transformer
NOVA
principle
TOS
BNetzA

29. Page 29
ULTRANET technical – project overview
Converter station
TransnetBW
Converter station
Amprion
ULTRANET
Siemens
Converter
North
(NEP Action A2)
Siemens

30. Page 30
ULTRANET technical –converter station setup
DCswitchyard
ACswitchyard
Converter
hall + pole
Converter
hall + pole
Converter
hall - pole
Converter
hall - pole
Metallic return
AC network
+ 380 kV DC
- 380 kV DC
DC network

31. Page 31
ULTRANET technical – converter requirements (1/2)

32. Page 32
ULTRANET Technical – Converter Requirements (2/2)

33. Mirko Düsel
Siemens Transmission Solutions

34. Page 34Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
... to implement the next generation grid today
It started with an idea ...

35. Page 35Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
But how?
HVDC PLUS: the right technology for every application
Full-bridge module
Tested in more than 100 industry references
Half-bridge module
So far used in all HVDC PLUS installations
Cable systems
HVDC overhead lines
and grids
··· ··· ··· ···

36. Page 36Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
The full-bridge principle
+Vd/2
-Vd/2
Vconv.
0
AC and DC voltage
VAC.
1
2
1
2
n
n
=
=
=
=
=
=
~ ~ ~ USUBUpm
Perfect control of the network with the full bridge

37. Page 37Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Benefits of full-bridge technology
High system availability
due to fast restarting
A very high level of security from power failures
Selective fault detection
and clarification
Optimum transmission
rate, irrespective of
weather conditions

38. Page 38Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Full-bridge technology enables Vision 2050
Europe-wide DC overlay grid
Extended
transmission
distances
Source-to-load
distance
Reliable Efficient
Fit for the future
DC networks
Eco-
friendly
Use of existing
routes
... and thus paves the way for tomorrow’s grid generation

39. Ludger Meier
Amprion

40. Page 40
Converter
Ultranet
A joint project of
Amprion GmbH and
TransnetBW GmbH
April 8, 2016
Ludger Meier, Amprion GmbH
Trade press conference, Nuremberg

41. Page 41
Converter layout
(Status of March 2016)
Converter halls
max. height 20 m
Transformers
Connection
Direct current line
Ultranet
Connection
Alternating current
grid

42. Page 42
Ultranet converter (animation)

43. Page 43
Ultranet converter (animation)

44. Page 44
Ultranet converter - facade design
Example:
Smooth metal facade

45. Page 45
Ultranet converter – noise emissions
Goal: Be at least 10% under legal requirements
Emission levels per TA noise
(night level):
Commercial areas 50 dB(A)
Mixed use areas 45 dB(A)
Requirements for manufacturers

46. Page 46
Summary
 Planning of details is running at full speed
 ULTRANET application conference for the 1st approval step (Federal
planning) initiated by BNetzA
 Converter planning minimizes impact on people and environment
 Project partnership between Siemens and TransnetBW and Amprion
ensures project success!

47. Thank you!
The energy transition in Germany -
Siemens supplies converters for grid expansion to Amprion and TransnetBW
PK | Converter Factory, Nuremberg | April 8, 2016
Partners for
ULTRANET converters:

48. Page 48Partners for ULTRANET converters: Amprion GmbH / TransnetBW GmbH / Siemens AG
Amprion GmbH
Rheinlanddamm 24
44139 Dortmund
Germany
Tel.: +49 (0)231/5849-0
E-Mail: netzausbau@
amprion.net
TransnetBW GmbH
Pariser Platz
Osloer Strasse 15-17
70173 Stuttgart
Germany
Tel.: +49 (0)711/21858-0
E-Mail: info@transnetbw.de
Siemens AG
Energy Management Division
Freyeslebenstr. 1
91058 Erlangen
Germany
Tel.: +49 (0)9131/7-0
E-Mail: support.energy@
siemens.com