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Permanent Magnet Direct Drive (PM/DD) Technology

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  • 1. Permanent Magnet Direct Drive (PM/DD) TechnologySeptember 2011 p ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 2. Northern Power Systems Profile Today… NPS is an advanced technology U.S. based wind turbine company specializing in next generation Permanent Magnet Direct Drive (PM/DD) wind turbines Private company with Lead Investors in USA and EU Two separate businesses based on the same PM/DD technology: Distributed Wind and Utility Wind Largest Distributed Wind company in the world Over 300 NPS 100 kW (NPS 100) turbines ordered to-date with 130 turbines installed globally... Highest availability in the distributed wind market – 800,000 run hours with 98% median availability to-date to date Largest installed base of integrated wind-diesel generation platforms in the world New technology under development including 450 kW turbine and wind-diesel-battery integrated solutions Utility Wind has world class expertise in large PM/DD wind turbine platforms world-class Introduced new NPS 2.3 MW (NPS 2.3) onshore wind turbine in 2011 with 93m and 100m rotors − First two prototype turbines are installed in Michigan USA and are running with very high availability − DNV type-certification process well underway ... expect DNV certification award in first quarter 2012 Developing larger, more cost effective PM/DD platforms for onshore and offshore applications Locations in the United States and Europe Offices: Barre, Vermont (HQ), Boston, Massachusetts (Corp) , and Zurich, Switzerland (Sales & Service) Production facilities: Barre Vermont and Saginaw Michigan Barre, Saginaw, 2 ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 3. NPS Today – Distributed Wind and Utility Wind … Distributed Wind Utility WindNPS 100 NPS 2.3 Launched in 2000, with PMDD in 2008 First prototype installed in December 2010 p yp 280 units, >$80M ordered since 2008 Extensively Tested at NREL 130 units in operation globally Launched in 2011 800,000 accumulated fleet hours Two prototypes flying in MI 98-99% 98 99% availability Strong Performance Average $300,000 selling price Medium/Low Wind Variants NPS 450 NPS 3.4 NPS 8.0 Platform extension under development with DOE grant Platform Extension Large Offshore 2012-13 prototype launch Existing 2.3 Technology New Technologies Fast commercial ramp Fast Commercial Ramp Low Maintenance Larger di t ib t d l d L distributed loads EU and A i markets d Asian k t Global Markets Gl b l M k t Next-generation PM/DD Technology g gy ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 4. Permanent magnet/direct-drive (PM/DD) technology isdisruptive …. NPS PM/DD PM/DD Permanent Magnet Direct Drive First-Gen PM/DD • SAME weight as traditional geared turbines • Extremely reliable … low ophistication Original Direct-Drive downtime, downtime low maintenance Technology Traditional Wound-Rotor Direct Drive • Cost similar to traditional geared turbines • 30% heavier than traditional geared turbines • Extremely reliable … low TSo downtime, low maintenance • Command a 15-20% price premium Traditional Geared Turbines “High-Speed” “High Speed” Geared Drive • 80-90% market-share Value to Customers ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 5. Northern Power Systems Technology Differentiation … Traditional Geared Turbine Complex, high-speed (1800 rpm) drivetrain problematic: 5% Downtime Gearbox replacements every 5 years Efficiency losses due to gear friction & electrically- powered magnetic field Failures of large components require expensive crane & significant downtime NPS 2.3 PM/DD Turbine Simple, slow-speed (15-20 rpm) drivetrain extremely reliable: 2% Downtime No high-speed wear & tear, gearbox replacement Very high-efficiency … no friction losses and p y g y permanent magnets supply magnetic field Highly modular design allows up-tower swap-outs: no crane & minimal downtime Facilitates larger rotors ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 6. NPS PM/DD enables the Lowest Cost of Energy … Better Energy Capture via Very Large Rotors Simple load path Simple powertrain dynamics and harmonics Simple blade characterization and construction High efficiency power train and nacelle layout gives more power, especially at low wind speeds y High Reliability Translates to Lower Operating Costs and Risks Low part count means fewer opportunities for failure Highly modular design Enables tight quality control in production Up-tower swap-outs: No external crane & minimal downtime No oil or fluids to leak or change Liquid coo g a o s e pa ded environmental ope at g e qu d cooling allows expanded e o e ta operating environment o e t ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 7. Wind Farm Cash Flow Drivers – NPS value proposition ... Power curve … energyTurbine-specific Uptime% Costs required production from a key drivers (or ”availability”) to maintain given wind speed Power Curve MaintenanceWind Farm = Power (MW) X $/MW-Hr X Uptime - & RepairCash Flows Costs Wind Speed Captures more energy … more of the time … at LOWER cost! Price of Site-specific Wind Speed electricity key drivers y generated ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 8. Utility Wind economics greatly improved with NPS 2.3 … Same potential site … … but NPS delivers better economics EXAMPLE Annual Cash Flow • 80MW site ($/Year) $600k $11.0M $100k • Class II/III $300k $10.1M • PPA rate = $100/MW hr $100/MW-hr $1M/yr. higher • Project const. costs = $40M cash flow! • ITC/PTC incentives Traditional Better NPS • Tax equity benefits Turbine Increased production Lower PMDD uptime Maint. Turbine •20-year investment life Return on I R t Investment (ROI) 22% b tt t t (ROI): better Net Present Value (NPV): $10M better ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.
  • 9. NPS 2.3 Prototypes at Stoney Corners I wind farm … ©2009. Northern Power Systems. All Rights Reserved. Not to be used or shared without permission. Proprietary and Confidential.