Standards

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Standards, Testing & Certification

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Standards

Standards

• IEC61400-2

• THE international standard for small wind turbine (SWT)

• IEC = International Electrotechnical Committee

• IEC61400-2 includes the definition of ‘class’

Definition of SWT

Rated power of 50kW Swept area 200 sq. m

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Independent Testing

Testing

• Some wind turbines are “designed & built” to the IEC61400-2 standard

• Some wind turbines are also independently tested to the IEC61400-2 standard

• Seaforth Energy has had the AOC15/50 independently tested to the IEC61400-2 standard– to Class II

• National Renewable Energy Laboratory (NREL) www.nrel.gov– U.S. D of E’s laboratory for renewable energy R&D

• Test documentation at http://seaforthenergy.com/aoc-1550/certifications/

Independently Tested

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What is meant by Class?

Definition of ‘Class’

Existing Wind Turbines

Proven Energy Evance

Independently tested to class II Independently tested to class II

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Certification

Certification - Purpose

• Allows SWT product to qualify for Feed-in Tariff (FiT)

• Consumer protection

• Financial institutions demand certification– or do they mean standards?

Certification -Detail

• Only SWTs are eligible for testing towards certification

• Certification for SWTs uses the IEC61400-2 standard

• Existing certificates are:– UK – Microgeneration Certification Scheme (MCS)

– North America – Small Wind Certification Council (SWCC)*

• SWT ‘class’ depends on:– Duration testing:

• Test duration

• Wind speeds during testing

• Test site* Active for consumer protection but not yet FiTs. This is to change soon particularly in Nova Scoatia. Concentrate now only on MCS.

50kW Wind Turbines & Certification

• 50kW wind turbines are not SWTs!

• Why?– Swept area is greater than 200 sq. m.

• Therefore not eligible for MCS test and certification

– More than 50kW!

• Total Installed Capacity = 55kW

• Declared Net Capacity = 54kW

AOC15/50 and Certification

• The AOC15/50 currently has no certification!

• Why?– UK FiT applies only to SWTs

• However . . .

• AOC15/50 is “eligible” for testing to SWT certification!

• Why?– Swept area is less than 200 sq. m.

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Small Wind Certification Council(SWCC)

AOC15/50 & SWCC

AOC15/50 and SWCC

• SWCC uses the IEC61400-2 standard

SWCC Status

• Testing nearly complete:– Design Evaluation – on-going

– Power & Performance - on-going

– Duration - complete

– Acoustic – complete

– Safety & Function - complete

• SWCC certification expected around May/June

• Very expensive

• Very lengthy

http://www.smallwindcertification.org/applicant-turbines/

AOC15/50, SWCC & ‘Class’

• SWCC duration testing saw insufficient Class I wind speeds

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Microgeneration Certification Scheme(MCS)

AOC15/50 and MCS

• Testing to MCS commences after SWCC.

• TUV-NEL

• Assume only power & performance and acoustic testing will be required.

• If correct MCS will certify AOC15/50 to Class II!

AOC15/50 and MCS

• MCS uses the IEC61400-2 standard

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Summary & ActionDiscussion

Discussion Points

• AOC15/50 already independently tested to IEC61400-2

• AOC15/50 already independently tested to class II

• MCS not required to qualify for UK FiT

• SWCC certification to class II expected soon

• MCS certification to class II expected early 2014

• Redo SWCC duration testing to class I

• TUV-NEL perform duration test to include class I winds

Isle of Luing

Alaska

Seaforth Energy warrants the AOC15/50 to up to annual

average wind speeds of 9 m/s.

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The End and Thank you.