1 Energy Sector© Siemens AG All rights reserved.

Grid Integration of Large Scale Wind

and Solar

2 Energy Sector

Siemens Energy Sector Answers for Energy Supply

Power Distribution

Power Transmission

Oil & Gas Fossil PowerGeneration

RenewableEnergy

Energy Service

Energy products and solutions – in 6 Divisions

3 Energy Sector

Three Steps to Sustainable Energy Supply

Optimization of the energy mix

Efficiency increases along the entire energy chain

Systemic optimization /Smart Grid

2

1

3

4 Energy Sector

Grid Access Solutions

5 Energy Sector

6 Energy Sector

7 Energy Sector

Grid Access – Systems Technology

AIS, HIS, GIS

FACTS, HVDC

MV Switchgear

Transformers

Control, Communication

and Protection

Technology Services Partnerships

Wind Turbines Cable and Laying

Civil Works

Road Construction

Platform Construction

Project Financing

Studies

Engineering

Procurement

Construction

Training &Maintenance

8 Energy Sector

110 MW Offshore Windpark Lillgrund / Sweden

Bunkeflo132 kV

Lillgrund110 MW

48x 2.3 MW

2006

9 Energy Sector

110 MW Offshore Windpark Lillgrund / Sweden

10 Energy Sector

400 MW Offshore Windpark Bard D

2007

11 Energy Sector

400 MW Offshore Windpark Bard D

12 Energy Sector

300 MW Offshore Windpark Thanet UK

Thannet300 MW

100x 3.0 MWRichborough

132 kV

2009

13 Energy Sector

Thanet 300MW Offshore Substation

Onshore substation

Onshore cables

Offshore substation

14 Energy Sector

500 MW Offshore Greater Gabbard UK

Greater Gabbard500 MW

139 x 3.6 MW

Sizewell VillageSufffolk132 kV

2009

15 Energy Sector

‘2nd Generation’ Offshore ConnectionGreater Gabbard, Hartlepool, UK

500MW2,100 tons3 HV export cables3 transformers

16 Energy Sector

Onshore SVC (Reactive Compensation)Leiston Substation, Suffolk, UK

17 Energy Sector

Trends

Borwin 2 Offshore _ 800MW HVDC

Transpower Projects Veja Mate (Bard), Global Tech 1 (Wetfeet) each with a 400MW rating.

2010

18 Energy Sector

Project Experience

Unparalleled Success in Connecting Wind/Renewable Energy to Load

19 Energy Sector

System Design

20 Energy Sector

System Scope

Manufacture, Supply, and Fabricate the Electrical Equipment & Offshore PlatformInstall Equipment in Top Side (platform) and Commission System Performance Testing once Installed at the Project site

Platform Superstructure Power Transformers115kV GIS (gas insulated switchgear)33kV GISShunt ReactorsControl and Protection SystemAC Auxiliary Power (Station Service) AC and DC Vital systemsMeteringSpare Parts Corrosion ProtectionFire protectionPower Cabling (33kV, 115kV)Control Wiring and Cabling Lightning ProtectionGrounding Systems

21 Energy Sector

System Performance

Defined as ensuring the Wind system meets the requirements of the ISO or Utility Large Generator Interconnection Agreement and all of the applicable FERC/NERC Standards.

This task starts with a a series of studies on the complete project - WTG to the Point of Interconnection (POI) :

Load flow study Short-circuit study Harmonic study Insulation Coordination study Dynamic and transient stability study Grounding and neutral grounding study Electromagnetic interference study Voltage fluctuation study

22 Energy Sector

Project Performance

Electrical Design

Components - ratings, specifications

Grid code compliance / Large Generator Interconnection Agreement

Protection and safety

Reliability optimization

Active power control / frequency capabilityReactive power / voltage controlHarmonics and voltage ripple Low voltage ride through

Reactive power compensation device

23 Energy Sector

AC to DC to AC Conversion

~= ~

= Oahu

AC Grid DC

Rectifier Inverter

24 Energy Sector

Offshore U.S. / Canada Project Overview

25 Energy Sector

Offshore Transmission Concepts

26 Energy Sector

U.S. Mainland Wind & Solar Resourcesare Distant from Load Centers

27 Energy Sector

Best Wind Resources Located in the Weakest Transmission Systems

28 Energy Sector

Transmission System Trends

29 Energy Sector

Wind Power HVDC Interconnector

Rectif ier bipolar

G G

G

G

Wind Park

5 Wind Farms per Wind Park (each 132 MW)

6 Wind Parks in total (3960 MW)

Collector System

AC 34 kV to 135 kV and to 345 kV

Depending on Distance additional Compensation needed

HVDC Converter Station (Rectifier)

Incl. AC Filters

and SynchronousCondensers

30 Energy Sector

Clean Line Energy PartnersFour Projects / Large Scale Wind to Load

31 Energy Sector

32 Energy Sector

Pattern Energy

3000MW

33 Energy Sector

Advanced Technology

HVDC - High Voltage Direct Current Transmission….. makes P flow

Back-to-Back Station

AC AC

DC Cable

AC AC

Submarine Cable Transmission Long Distance OHL Transmission

DC Line

AC AC

34 Energy Sector

The Evolution of HVDC PLUS

Power Electronic Devices

Two-Level Three-Level Multilevel

IGBT in PP IGBT ModuleGTO / IGCT

35 Energy Sector

HVDC PLUS - One Step Ahead

Compact Modular Design

Small Facility ‘Footprint’

Advanced VSC Technology

36 Energy Sector

DC Submarine Cable Systems

37 Energy Sector

Converter Station

Off-Island Cable Route

Atlantic Ocean

Duffy Avenue /Long Island – New York

Sayreville / New Jersey

Neptune RTS 660MW – 750MW June 07 Commercial Operation

Prysmian Cable Cross Section

38 Energy Sector

Trans Bay Cable Project 400MW In Service Late 2010

Customer

Project Name

Location

Power Rating

Type of Plant

Voltage Levels

Type of Semi-conductors

Trans Bay Cable LLC

Trans Bay Cable Project

Pittsburg, CASan Francisco, CA

400MW

53-mile HVDC PLUS Submarine Cable

± 200kV DC230kV/ 138kV AC, 60Hz

IGBT (5184)

39 Energy Sector

Hudson Transmission Project - 660MW In Service 2013

ConverterStation

West 49th

NYC Substation

Bergen NJ Substation

<1 mi 8 mi

Location NJ to NYC

Type of Plant Back-to-Back

AC Connection 230kV AC via Cable

345kV AC via Cable

DC Voltage Level 170kV

DC Current Level 3910A

230kV 345kV

40 Energy Sector

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