Siemens Wind Power Facts

Time to choose forward thinking 4th Wind Energy Conference 2013- June 12, 2013 Nicolas Bin

Siemens AG (FY 2012)

Revenue - >$100 billion globally >35% from the Energy Sector >370,000 Employees globally

Energy Healthcare Industry Infrastructure & Cities

Divisions Divisions Divisions Divisions Ñ Fossil Power Ñ Imaging & Therapy Ñ Industry Automation Ñ Rail Systems Generation Systems Ñ Drive Technologies Ñ Mobility and Logistics Ñ Low and Medium Ñ Wind Power Ñ Clinical Products Ñ Customer Services Voltage Ñ Oil & Gas Ñ Diagnostics Ñ Smart Grid Ñ Power Transmission Ñ Customer Solutions Ñ Building Technologies Ñ Energy Service Ñ OSRAM

Page 2 Siemens Energy Sector – Clean electricity for the world

Top performance in five Divisions

Power Fossil Power Wind Power Oil & Gas Energy Transmission Generation Service (E T) (E F) (E W) (E O) (E S)

#1 – High voltage #1 – Advanced gas #1 – Offshore Wind #1 – Industrial power >18,000 products turbine frames steam and gas turbines employees to service customers #2 – Transmission #1 – Gas turbine #3 – Overall global #1 – Business solutions around the world solutions solutions position 2012

#1 – Instrumentation, controls & electrical

Page 3 Wind Power Division – at a glance

Wind Power Division CEO Dr. Felix Ferlemann

Business Units Portfolio Market Position

EMEA • Onshore wind power Global Offshore No. 1 (Europe, Middle East, Africa) plants Total global market No. 3 • Offshore wind power Equity stakes plants Americas • Service A2SEA (North-/South America) installation vessels • Majority stake holder DONG Energy

APAC (Asia-Pacific) • two joint ventures with Shanghai Electric

Siemens Wind Power facts

One of the world’s leading suppliers of wind power solutions

Acquired Danish wind turbine manufacturer Bonus Energy A/S in 2004

Total Installed Base: >12,300 turbines with > 19,900 MW capacity

Installed in 2012: > 4,100 MW

More than 9,300 employees globally incl. Wind Service

Record order backlog of ~ € 11 billion incl. Wind Service

Revenue in FY 2012: ~ € 5,1 billion

Goldendale, WA Ft. Madison blade facility (Service) Ontario, Canada Business hub

Ontario, Canada Blade facility

Boston, MA Offshore Boulder, CO R&D- wind & Ft. Madison, IA aerodynamics Blade manufacturing Hutchinson, KS Orlando, FL Nacelles/hubs Americas Headquarters Wichita, KS (Distribution Center) Mexico City, Local sales Houston, TX Woodward, OK (Americas (Service) Service Center) Hutchinson nacelle facility

Santiago de Sao Paulo, Brazil Chile Business hub Local sales Blades and Hubs Montevideo Local sales Buenos Aires Local sales

Supply chain Sales hubs Other sales R&D Service

Siemens product portfolio track record1)

MW class Multi-MW class Multi-MW Direct Drive class CombiStall technology Pitch technology with variable speed Direct drive technology with no • SWT-1.0-54: 356 WTG • SWT-2.3-82VS/93/101/108: 5,331 WTG gearbox • SWT-1.3-62: 1,549 WTG • SWT-3.6-107: 459 WTG • SWT-3.0-101 DD: 146 WTG • SWT-2.0-76: 165 WTG • SWT-3.6-120: 128 WTG • SWT-2.3-113 DD 3 WTG • SWT-2.3-82: 524 WTG • SWT-6.0-120/154 DD 4 testing 1980 - 2004 2004 2006 2009 2010 2011 2012 SWT-2.3-82 SWT-2.3-93 SWT-3.0-101 SWT-6.0-154 SWT-2.0-76 SWT-2.3-82 VS SWT-2.3-101 SWT-2.3/3.0-113 (DD) SWT-4.0-130 SWT-1.3-62 SWT-3.6-107 SWT-3.6-120 SWT-2.3-108 SWT-3.0-108 SWT-1.0-54 SWT-3.0-113

Former product portfolio Current product portfolio Installed base worldwide: > 12,300 turbines with ~ 20,000 MW capacity Source: E W 1) December 2012 - Installed Restricted © Siemens AG 2013 All rights reserved. Page 7 2013-03-01 Siemens Wind Power Division Siemens platform product portfolio

SWT 2.3-82VS SWT 2.3-93 SWT 2.3-101 SWT 2.3-108 SWT 2.3-113 SWT 3.0-101 SWT 3.0-108 SWT 3.0-113

1 G2 platform 2 D3 platform

SWT 3.6-107 SWT 3.6-120 SWT 4.0-120 SWT 4.0-130 SWT 6.0-120 SWT 6.0-154

3 G4 platform 4 D6 platform

Geared AEP growth Direct drive AEP growth

+4% +5% +3% +8% +3%

2.3-93* 2.3-101* 2.3-108* 3.0-1013.0-108 3.0-113 3.2-113

* 8.5m/s, 80m HH * Gross AEP

Core technology Blade innovations Tower concepts

One nacelle Four rotors variants Two tower concepts Applicable across the Covering all IEC conditions, Steel tower solution entire Siemens G2 without compromising structural benefitting from a global Product Portfolio loading supplier base Concrete tower solution

SWT-2.3-82 VS SWT-2.3-93 SWT-2.3-101 SWT-2.3-108

IEC class: IEC IA IEC IIA IEC IIB IEC IIB

Nominal Power: 2300 kW 2300 kW 2300 kW 2300 kW Core Technology

Nacelle weight: 82 t 82 t 82 t 82 t

Nacelle design Gearbox and Lightning Serviceability and parameters lubrication system protection ergonomics

Nacelle design parameters

¢ Closed nacelle design enables operations in extreme environments ¢ Dehumidifier keeps humidity below 60 % in the nacelle ¢ Gearbox with large capacity cooling and filtering system for maximum reliability ¢ Steel canopy ensures maximum protection of the internals ¢ Cooling system outside nacelle ensures maximum dust protection

SWT-2.3 nacelle

Gearbox and lubrication system

¢ Large capacity and low pressure inline filter ensures superior oil filtration and minimum risk of by-pass

¢ Magnets located in by-pass of oil filter reduces risk of particle contamination in by-pass situation (i.e. cold start)

¢ Offline filter for optimal oil quality and maximum life expectancy

¢ Pump structurally separated from the filter with very low risk that particles vibrate through the filter into the gearbox

SWT-2.3-MW Geard drive train

Lightning protection

¢ Lightning receptors and insulated copper wires integrated in the blade structure

¢ Faraday cage protection of components inside hub, nacelle and tower

¢ Transformer located at tower bottom lowers the potential for collateral damage

¢ Efficient earthing secures the effectiveness of the lightning protection system

¢ The lightning protection system complies with IEC 61400-24 Components in the Lightning protection system

Serviceability and ergonomics

¢ Service experience from installed base of approx. 12 GW of Siemens G2 turbines on- and offshore

¢ Thorough investigation and analysis of component behavior over time

¢ Constant focus on optimizations throughout the turbine lifetime

¢ Worldwide network of highly trained Siemens Service Technicians

¢ Siemens Condition Monitoring for advanced preventive maintenance Siemens Service technicians

SWT-3.0-101 SWT-3.0-108 SWT-3.0-113 IEC class: IEC IA IEC IA IEC IIA

Nominal Power 3000 kW 3000 kW 3000 kW Core Technology

Nacelle weight 78 t 78 t 78 t Transport weight 75 t 75 t 75 t

High Performance Passive cooling Siemens test Transportation Serviceability and generator system program solutions ergonomics

High performance generator

¢ Direct drive with permanent magnet generator

¢ Previous proven solutions for the remaining major components; - blades - hub - tower - power conversion

SWT-3.0 open nacelle view

Passive cooling system

Passive cooling radiator Schematic

Generator

SWT-3.0: nacelle top view Liquid link Heat exchanger

SWT-3.0: passive cooling system

¢ Closed nacelle design for maximum protection against external environment

¢ Two sided cooling with heat exchanges located between stator shaft and windings

¢ Long lifetime coolant with 7 year lifespan

Siemens test program

Rotor Structure Performance

Tests programs performed: Tests programs performed: Tests programs performed: ° Blade tests ° Back-to-Back tests ° No load test ° Blade bearing tests ° Main bearing tests ° Low load tests ° Pitch tests ° Vibration tests ° Performance tests

Transportation solutions

¢ Designed for standard transport limitations; transportation weight 75 t.

¢ Only requires standard trucks and tools available on the global market

¢ Same Installation space and cranes requirements as for SWT- 2.3 MW geared turbines

SWT-3.0: nacelle transportation

• By introducing line production for nacelles, the production time was reduced by more than 50%, from 36 hours to 15 hours. • Another way to lower the cost of energy is to produce a larger of number of wind turbines.

• Gearless drive train increases reliability and availability • 50% less parts reduces complexity • 30% less weight facilitates transportation and installation • Higher energy yield

50 V164 -7.0 V112-3.0 - 35% 40 Siemens Direct Drive technology: ° Siemens 3.0 DD: 75% nacelle weight - 40% 3.6-120 6.0-154 30 relative to 2.5-3.5 MW market average

3.0-113 ° Siemens 6.0 DD: 70% nacelle weight 20 relative to 5-7 MW market average Nacelle Nacelle weight (t/MW) ° Segmented stator allows for fast 10 manufacturing and crane-free assembly

0 0 2 4 6 8 Turbine rating (MW) All turbines on market Siemens DD turbines Siemens geared turbine

Source: MAKE Consulting, 2010

Magnet Price Development Modularization Benefits flexible Transport Options

-35% reduced transportation costs compared to 19 axle truck

US pilot: Small DD for onshore Traditional: 77 t Nacelle incl. generator US 19 axle out of Hutchison

US 5 axle 1st step: Nacelle & 20 t generator separately out of Hutchinson 57 t US 11 axle

Assembly of split generator ≈≈≈assembly of a hub

Special 13 axle weighted out truck for shorter distances Need removal of yaw motors and main cables

Serviceability and ergonomics

Service offerings reduce customer risk

¢ Worldwide network of highly trained Siemens service technicians to safely manage new technology

¢ Safe Investment: Long term service program offered already from day one (incl. parts warranty)

¢ Siemens Condition Monitoring allowing for advanced preventive maintenance

¢ Service conditions improved by Siemens Service technicians easier accessibility

SWPS-430O Siemens Wind Power Service Programs (Offshore Warranty)

Value SWPS-420O Parts (Offshore Availability) Warranties SWPS-300W Offshore Offshore (Warranty) Selected Services Selected Services SWPS-200A Parts Offshore Logistic Offshore Logistic (Availability) Warranties Solutions Solutions Availability Availability Availability Availability Warranty Warranty Warranty Warranty

SWPS-100B Remote Remote Remote Remote (Basic) Diagnostic Services Diagnostic Services Diagnostic Services Diagnostic Services Scheduled Scheduled Scheduled Scheduled Scheduled Service Service Service Service Service

Complexity BoP & Unscheduled Basic Technical Mods & Operations Turnkey Selected Service Training Support Ups Services Service Remote Offshore Service TCM Parts Spare Products Diagnostic Selected Tools Reporting Warranties Parts Services Services

Established as Regional Unit since March 2011

- 39 employees - 4 Business Units:

° Healthcare ° Industry ° Energy ° Infrastructure & Cities

° 2 Main Sub-Stations of 150kV for the Pulp Mill Plant, Montes del Plata, interconnected to the National Power Grid managed by UTE (government utility company).

° Erection and installation 2 Steam Turbine Generator SST800 for Pulp Mill Plant, Montes del Plata.

° Supply 2 Gas Turbine Generator SGT5 2000E for Punta del Tigre Power Plant.