IEC TS 62600-101:2015

Marine energy - Wave, tidal and other water current converters - Part 101: Wave energy resource assessment and characterization

IEC TS 62600-101:2015(E) establishes a system for estimating, analysing and reporting the wave energy resource at sites potentially suitable for the installation of Wave Energy Converters (WECs). This Technical Specification is to be applied at all stages of site assessment from initial investigations to detailed project design. In conjunction with IEC TS 62600-100 (WEC performance) it enables an estimate of the annual energy production of a WEC or WEC array to be calculated.

General Information

• Status: Published
• Publication Date: 04-Jun-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: TC 114 - Marine energy - Wave, tidal and other water current converters
• Drafting Committee: PT 62600-101 - TC 114/PT 62600-101
• Current Stage: PPUB - Publication issued
• Start Date: 30-Sep-2015
• Completion Date: 05-Jun-2015

Standards Content (Sample)

IEC TS 62600-101 ®
Edition 1.0 2015-06
TECHNICAL
SPECIFICATION
colour
inside
Marine energy – Wave, tidal and other water current converters –
Part 101: Wave energy resource assessment and characterization

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IEC TS 62600-101 ®
Edition 1.0 2015-06
TECHNICAL
SPECIFICATION
colour
inside
Marine energy – Wave, tidal and other water current converters –

Part 101: Wave energy resource assessment and characterization

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.140 ISBN 978-2-8322-2724-4

– 2 – IEC TS 62600-101:2015 © IEC 2015
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references. 8
3 Terms and definitions . 8
4 Symbols and units . 10
5 Classes of resource assessment . 11
5.1 Introductory remarks . 11
5.2 Resource assessment and characterization flow chart . 11
6 Study planning and data collection . 14
6.1 Introductory remarks . 14
6.2 Study area . 14
6.3 Bathymetry . 14
6.4 Existing wave data . 14
6.5 Wave measurement . 15
6.5.1 Purpose . 15
6.5.2 Selection of measuring instrument and analysis methodology . 15
6.5.3 Instrument calibration . 16
6.5.4 Instrument deployment . 16
6.5.5 Redundancy . 17
6.5.6 Analysis of measurements . 17
6.6 Wind data . 17
6.7 Tide data . 18
6.8 Current data . 18
6.9 Ice coverage and/or exceptional environmental conditions . 18
6.10 Water density . 18
6.11 Gravitational acceleration . 18
7 Numerical modelling . 19
7.1 Introductory remarks . 19
7.2 Suitable numerical models . 19
7.3 Definition of boundary conditions . 21
7.4 Modelling the nearshore resource . 22
7.5 Effect of WEC array on wave energy resource . 23
7.6 Validation of numerical models . 23
7.6.1 Introductory remarks . 23
7.6.2 Validation data specification . 23
7.6.3 Procedure . 24
7.6.4 Extent of validation . 27
7.7 Model tuning and calibration . 28
8 Measure-Correlate-Predict (MCP) . 29
8.1 Introductory remarks . 29
8.2 Procedures . 29
9 Data analysis . 30
9.1 Introductory remarks . 30
9.2 Characterization using two-dimensional wave spectra . 31
9.2.1 Overview . 31

9.2.2 Omni-directional wave power . 31
9.2.3 Characteristic wave height . 31
9.2.4 Characteristic wave period . 32
9.2.5 Spectral width . 32
9.2.6 Directionally resolved wave power . 32
9.2.7 Wave system partitioning . 33
9.3 Estimation of wave power using parameterized sea states . 33
9.4 Aggregation and statistics of results . 34
9.4.1 General . 34
9.4.2 Mean . 34
9.4.3 Standard deviation . 34
9.4.4 Percentiles . 34
9.4.5 Monthly variability . 34
9.5 Uncertainty of the resource assessment . 35
10 Reporting of results . 35
10.1 Introductory remarks . 35
10.2 Selection of study points . 36
10.3 Technical report . 36
10.4 Digital database . 36
10.5 Presentation of regional information . 37
10.6 Presentation of information at study points . 38
Annex A (informative) A method for sensitivity analysis . 42
A.1 General . 42
A.2 Specification of significance . 42
A.3 Sample sea states . 42
A.4 Condition of insensitivity . 43
Annex B (normative) Evaluation of measurement uncertainty . 44
B.1 General . 44
B.2 Uncertainty analysis . 44
Annex C (informative) Example calculation of long-term uncertainty . 45
C.1 General . 45
C.2 Climatic variability . 46
C.3 Anthropogenic climatic variability . 49
C.4 Conclusion . 49
Annex D (informative) Nearshore resource . 50
D.1 General . 50
D.2 Limiting water depth . 50
D.3 Bathymetry . 51
D.4 Fluctuating water level . 51
D.5 Currents . 51
D.6 Validation . 51
D.7 Uncertainty . 52
Bibliography . 53

Figure 1 – Wave resource assessment and characterization flow chart . 13
Figure 2 – Validation flow chart . 27
Figure 3 – Example map of mean annual wave power . 38

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