DNV GL © 2013 2014-06-19 SAFER, SMARTER, GREENER DNV GL © 2013

2014-06-19 Andreas G. Jensen / Fabio Pollicino

ENERGY

DNV and GL Guidelines: Plans for Harmonization

1

& The importance of Defining the Project Specific Requirements of CVA Activities

DNV GL © 2013 2014-06-19

28 July 2014

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Founded 1864

Hovik, Norway 10,000 employees

Dedicated competences in: Tankers Offshore Classification Power & Transmission System certification

Merger of DNV & GL, Sept. 2013: Combining two major players

Founded 1867

Hamburg 6,000 employees

Dedicated competences in: Container ships Energy efficiency Marine warranty Renewables

Shared ambition for quality and

innovation

Head office in Hovik 16,000 employees

A leading company in: Maritime Oil & Gas Energy Business Assurance

DNV GL © 2013 2014-06-19

Merged Companies – BA Energy including Renewables Certification

28 July 2014

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DNV GL © 2013 2014-06-19

Offshore Wind - Combining DNV GL competences

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= +

40+ years of offshore oil & gas experience

Global leader in Certification of offshore wind projects

30+ years of Type Certification of wind

turbines

45+ years of offshore oil & gas

experience

DNV GL © 2013 2014-06-19

DNV and GL Alignment - Main goals for the next 3 years

All legacy documents transferred to DNV GL system by end 2016

– Old documents will be maintained but to minimum required

– All documents, legacy and new, available on rules homepage asap

DNV GL will have service specifications in the field of:

Wind – Tidal - Wave and Solar energy

For wind two service lines will be provided:

1. DNV GL Certification scheme

2. IEC Certification scheme according to IEC 61400-22

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DNV GL © 2013 2014-06-19

Alignment of Standards and Guidelines

DNV GL and the IEC based certification service will be provided

1. DNV GL certification service based on legacy GL Guidelines (GL-IV-1 onshore and GL IV-2 offshore)

GL Guidelines to be split into service specifications and several technical standards

2. IEC Certification according to IEC 61400-22 based on legacy DNV

documents (DSS-904 Type Certification and OSS-901 Project Certification)

– DNV-OS-J101 & J-201 to be incorporated into technical standards

Alignment will be performed in combination with technical maintenance

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DNV GL © 2013 2014-06-19

1.The DNV GL Certification of Wind Turbines

Service Specifications: – Wind Turbine Type Certification

– Wind Farm Project Certification

Standards: – Design and Manufacture of Wind Turbine Blades

– Design of Wind Turbine Support Structures

– Design of Floating Support Structures

– Design of Safety Systems

– Load Assumptions for onshore

– Load Assumptions for offshore

– Machinery Components

– Electrical Installations

– Marine operations

– Grid Code Compliance

– Requirements for Manufacturers and Materials

– Corrosion Protection

– Testing of Wind Turbines

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DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-0046:2015-03

Design and Manufacture of

Wind Turbine Blades

DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

Wind Turbine

Type Certification

DNVGL-SE-0678:2014-07

DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

Wind Turbine

project Certification

DNVGL-SE-0678:2014-07

IEC

Harmon. Results

DNV GL © 2013 2014-06-19

DNV GL Standards

The legacy GL Guidelines are split into several standards (each „Chapter“ becomes one Standard)

– Component certification easier (the client gets what he needs)

– Avoid duplication e.g. onshore / offshore

– Modular structure enables better maintenance

Full review of the content will be performed

– Include findings from harmonization process

– The content should stand for itself, Reference to existing documents possible (To be as self sufficient as possible)

– Extent of guidance as in legacy GL Guideline

– Always to give guidance leading to a safe product (where possible), DNV GL allow everyone to use individual solutions if they fulfil the safety level required

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DNV GL © 2013 2014-06-19

2. The DNV GL/IEC Certification

The IEC approach is harmonised globally within DNV GL, adding the best from both sides without cost increase and practical to work with (on-going projects not affected)

New DNV GL Service Specifications for Type/Component and Project Certifications to be published Quarter 4, 2014

Hearing process of Service Specifications involving technical committees and external parties Quarter 3, 2014

Workshop/Seminar on IEC harmonisation for TC, CC and PC Quarter 4, 2014

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28 July, 2014 DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

OSS-901:

Wind Turbine Project Certification in accordance to IEC 61400-22

DNVGL-SE-0678:2014-07

IEC

Harmon. Results

DNV GL © 2013 2014-06-19

First DNV GL Service Specifications from Renewables Certification

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28 July, 2014

DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

Wind Turbine Type Certification in accordance to IEC 61400-22

DNVGL-SE-0678:2014-07

28 July, 2014

DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

Wind Turbine Project Certification in accordance to IEC 61400-22

DNVGL-SE-0678:2014-07

DNV GL © 2013 2014-06-19

Harmonization of DNV GL Standards and Guidelines

The aim is to harmonise the interpretation and approaches between legacy DNV and legacy GL for

– Added value towards the sector – Incorporate latest experiences from

projects – Efficient way of working with certification – Delivery of same service world-wide Current contracts must be fulfilled with the

existing scheme (GL Guideline, IEC/DNV) National systems and requirements offered

as well 11

DNVGL-ST-00165 Version 2015-10

DNVGL-ST-00165 Version 2015-10

DNV GL-SE-0678:2014-xy

DNV GL © 2013 2014-06-19

DNV GL document structure and types

Technical requirements

Procedural requirements

Guidance/best practices

Service Specifications

Standards

Recommended Practices

Document types

Example

DNV-OSS-901 IEC-61400-22

GL-VI-2

DNV-OS-J101 DNV-OS-J201 GL-VI-2 ISO-19901

GL-Technical Notes on Engineering Details

DNV-RP-XXX

DNV GL © 2013 2014-06-19

DNV GL document codes

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Document type

Company prefix

Sep

arator

Document type code

Sep

arator

Unique serial number*

Complete document code

Service specifications

DNVGL

- SE

-

3123

DNVGL-SE-3123

Standards DNVGL - ST - 0234 DNVGL-ST-0234

Recommended practices

DNVGL

- RP

- 0189 DNVGL-RP-0189

* The unique serial number will only be used for one document, i.e. if a document is requested moved from one type to another, e.g. Recommended practices to Standard, it will keep the number, only change the document type code: DNVGL-RP-0189 becomes: DNVGL-ST-0189.

DNV GL © 2013 2014-06-19

Holistic Concept - Project Certification (GL-IV-2)

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Projects will be checked for their

fit-for-purpose, and

trustable quality according to standards

state-of-the-art will be confirmed

DNV GL © 2013 2014-06-19

Scheme according to DNV OSS 901 & IEC 61400-22

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II Design

III Manufacturing

IV Installation

I Design Basis

V Commissioning

VI In- Service

DN

V Project C

ertificate

Certificate

Validation

Statement of Compliance

Statement of Compliance

Statement of Compliance

Statement of Compliance

Statement of Compliance

DNV Service Specification OSS-901 IEC Scheme

Schemes aligned with CVA activities – however split of tasks vary

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DNV GL © 2013 2014-06-19

Offshore Projects in Germany

The Federal Maritime and Hydrographic Agency (BSH) requires a full project certification according to their Standard

DNV GL schemes are fully recognized

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/ 1st release

/ 2nd release

/ 3rd release

/ release for operation

DNV GL © 2013 2014-06-19

Project-Specific Requirements of CVA activities

What is the extent of the CVA activities?

Formal requirements provided in CFR 30 Parts 550, 585 and 290

The requirements are mainly in the form of headings

Detailed specification is desirable for a uniform and consistent CVA approval

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DNV GL © 2013 2014-06-19

Elements of an Offshore Wind Farm

Wind turbine generator and support:

- Rotor Nacelle Assembly

- Support structure

(Tower – Substructure – Foundation)

Substation

Cables

(Inter Array and Export)

What are the CVA requirements to these specific elements?

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DNV GL © 2013 2014-06-19

CVA’s Primary Duties for Facility Design Review

Following are CVA’s primary duties as mentioned in CFR § 585.707:

Conduct an independent assessment of the design of the facility.

Certify that the facility is designed to withstand the environmental and functional load conditions.

Conduct an independent assessment of all proposed:

(1) Planning criteria

(2) Operational requirements

(3) Environmental loading data

(4) Load determinations

(5) Stress analyses

(6) Material designations

(7) Soil and foundation conditions

(8) Safety factors

(9) Other pertinent parameters of the proposed design.

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DNV GL © 2013 2014-06-19

DNV GL offers a scope that has been widely used in Europe

Based on the IEC 61400-22 Wind turbines Conformity testing and certification

DNV-OSS-901 Provides interpretation and detailing of IEC 61400-22 to make it suitable as a contractual basis for the scope of work to be performed

GL IV-2: Guideline for the Certification of Offshore Wind Turbines, Edition 2012

– describing the procedure and

– containing or referring to technical requirements

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DNV GL © 2013 2014-06-19

Elements consider by DNV GL in the DNV GL Schemes

DNV SCHEME ELEMENTS

PHASES WIND TURBINE

SUPPORT STRUCTURE

SUBSTATION CABLES

DESIGN BASIS () DESIGN

()

MANUFACTURING () INSTALLATION () COMMISSIONING ()

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DNV GL © 2013 2014-06-19

Cable Scope is marked ()

Detailed service description in

DNV-OSS-901 & (DNVGL-SE-0678:2014-0) for:

Wind turbine and support structure

Substation

Cable Scope is marked ()

- Scopes of work are available from both legacies

- Recommended Practice DNV-RP-J301

- Guideline for the certification of Offshore Wind Turbines, Sec. 8.10

- More formalized scope under development

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DNV GL © 2013 2014-06-19

Subsea power cables – Recommended Practice

Recommended Practice DNV-RP-J301, published in February 2014 Subsea power cables in shallow water

renewable energy applications Joint Industry Project with 15 stakeholders,

led by DNV GL, Aug 2012 - Feb 2014

Developed first comprehensive guidance document on the subject

Applies to all phases of the life cycle of subsea power cables in shallow water renewable applications Accessible document for technically minded

persons

28 July 2014

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DNV GL © 2013 2014-06-19

What is special about Offshore Wind?

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Offshore Wind – Multidisciplinary with Considerable Interactions

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Soil

Structure

Ocean

Wind

Erosion (scour)

Meteorology Geotechnical

Aeroelasticity

Hydroelasticity

Corrosion

Lightning

Earthquake

DNV GL © 2013 2014-06-19

Example: approval of the Rotor Nacelle Assembly (wind turbine)

The RNA (wind turbine) is part of the structure

The IEC system provides a way to ensure its structural integrity:

IEC assumes a Type Approval for the RNA (Component Certificate)

a) as part of the Type Approval a load “spectrum” is approved

b) for a specific offshore site loads on the RNA is approved

c) a site specific approval states that loads are within the approved spectrum

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DNV GL © 2013 2014-06-19

Why is specific Offshore Wind approval requirements relevant?

• Increases investors’ and insurance companies’ willingness to engage

• Enhances competition

• Facilitates evaluation and comparison of proposals

• Drives offshore wind development ahead

• Facilitates trading of offshore assets

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DNV GL © 2013 2014-06-19

London Array

LINCS

Thanet

Walney I & II

Greater Gabbard

Barrow

Kentish Flats

Burbo

Lynn & Inner Dowsing

Rhyl Flats

Robin Rigg

Teeside

Gunfleet Sands I, II, III

West of Duddon

Thornton Banks

Egmond aan Zee

Horns Rev II

BARD Offshore I

MeerWind

Nördlicher Grund

Innogy I

Nordsee Ost

Alpha Ventus

Baltic I

Baltic II

Wikinger

GodeWind I + II

Borkum Riffgrund

Sandbank

Albatros

Northwind

…

Independent expertise by a third party extract of references Lessons learned from more than 50 offshore projects

28 July, 2014

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Sky 2000

Arklow Bank

Seanergy

Utgrunden

Horns Rev

Blyth

Beatrice

Docking Shoal

Race Bank

Tunø Knob

Nysted

Vindeby

Samsø

Beltsee

Breitling

Nysted II

Smyggeham

Arkona-Becken Südost

Kriegers Flak II

Klutzer Winkel

Omø Stalgrunde

Ytte Stengrund

Lillegrund

North Misjobanken

Uttgrunden II

Blekinge

Skabrevet Middelgrunden Bars

ebank

Friedrichshaven

Laesø

Emden

Wilhelmshaven

FINO

Alpha Ventus

RWE Innogy I Borkum

Riffgrund

Bard NL

Butendiek

Nordergründe

Amrumbank West

Thornton Bank

Riffgat

Dan Tysk

Princess Amalia (Q7)

Gode Wind

Baltic 1 BARD

Offshore I Borkum Riffgrund West

Baltic 2 Nördlicher Grund

Sandbank 24

Nordsee Ost

Amrumbank Mee

rwind

GEOGFReE

`He Dreiht‘

`Nordsee‘

Global Tech I

Robin Rigg

Cromer Metmast

Scroby Sands

Deutsche Bucht

London Array

Horns Rev II

Delta Nordsee Borkum

West II

Veja Mate

North Hoyle

Gwynt y Mor

DNV GL © 2013 2014-06-19

Overview Offshore Wind parks in Europe – DNV GL references

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5

= operational

1

1

3

3

13

2

5

1

1

4

5 13

= authorized

= applied for/under construction

= DNV GL certified

4 1

3

16

8

12

UK: 13 1 31 27

Germany: 5 23 81 13

Denmark: 13 2 16 11

Belgium: 3 1 4 6

Sweden: 5 1 0 3

Netherlands: 4 0 85 2 Source: RAVE 2014

2 1

5

31

23 81

2

1 85

Number of turbines fully connected to the grid during 2013 per country in the EU Country Belgium UK Germany Denmark Sweden Spain Total Wind farms 3 8 8 1 1 1 22 Connected turbines 44 212 48 97 16 1 418 Source: EWEA 2014

country operational authorized Applied for DNV GL certified

DNV GL © 2013 2014-06-19

Benefits of independent 3rd party – Certification Body

Confirmation of requirements as stated by project developers, investors, operators, manufacturers governmental and non-governmental organizations

Building of trust in the design and construction (confidence in technical integrity) – Quality Assurance

Securing sustainable energy production throughout life-cycle

Secure investments and optimize return of investment

Secure better insurance rates

Minimizing financial project risks

Increasing reliability in the governmentals’ and consumers’ interests

Independent expertise by an objective a 3rd-party

Mitigate risks to environment and people

28 July 2014 29

DNV GL © 2013 2014-06-19

SAFER, SMARTER, GREENER

www.dnvgl.com

Thank you for your attention

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Principal Engineer Andreas.G.Jensen@dnvgl.com +45 39 45 48 39