IEC TS 62600-101:2024
(Main)Marine energy - Wave, tidal and other water current converters - Part 101: Wave energy resource assessment and characterization
Marine energy - Wave, tidal and other water current converters - Part 101: Wave energy resource assessment and characterization
IEC TS 62600-101:2024 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 document is to be applied at all stages of site assessment, from initial investigations to detailed project design. This document is to be applied in conjunction with the IEC Technical Specification on WEC performance (IEC TS 62600-100) to estimate the mean annual energy production of a WEC or WEC array as described in the methodology in Annex A. This document is not intended for estimation of extreme wave conditions. The framework and methodologies prescribed in this document are intended to ensure that only adequate models are used, and that they are applied in an appropriate manner to ensure confidence and consistency in the reported results. Moreover, the document prescribes methods for analysing metocean data (including the data generated by modelling) in order to properly quantify and characterize the temporal and spatial attributes of the wave energy resource, and for reporting the results of a resource assessment in a comprehensive and consistent manner.
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IEC TS 62600-101 ®
Edition 2.0 2024-12
TECHNICAL
SPECIFICATION
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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 2.0 2024-12
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 978-2-8327-0036-5
– 2 – IEC TS 62600-101:2024 © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Symbols and abbreviated terms . 10
5 Classes of resource assessment . 11
5.1 General . 11
5.2 Resource assessment and characterization flow chart . 12
6 Study planning and data collection . 14
6.1 General . 14
6.2 Study area . 14
6.3 Bathymetry . 14
6.4 Existing wave data . 15
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 . 17
6.5.5 Analysis of measurements . 17
6.6 Wind data . 18
6.7 Tidal and non-tidal current data . 18
6.8 Water level fluctuation . 18
6.9 Ice coverage and exceptional environmental conditions . 19
6.10 Water density . 19
6.11 Gravitational acceleration . 19
7 Numerical modelling . 19
7.1 General . 19
7.2 Suitable numerical models . 19
7.3 Definition of boundary conditions . 22
7.4 Modelling the nearshore resource . 23
7.5 Effect of WEC array on wave energy resource . 23
7.6 Validation of numerical models . 24
7.6.1 General . 24
7.6.2 Validation data specification . 24
7.6.3 Procedure . 25
7.6.4 Extent of validation . 28
7.7 Model tuning and calibration . 30
8 Measure-Correlate-Predict (MCP) methods . 30
8.1 General . 30
8.2 Procedures . 31
9 Data analysis . 32
9.1 General . 32
9.2 Characterization using two-dimensional wave spectra . 32
9.2.1 Overview . 32
9.2.2 Omni-directional wave power . 33
9.2.3 Characteristic wave height . 33
9.2.4 Characteristic wave period. 34
9.2.5 Spectral width . 34
9.2.6 Directionally resolved wave power . 34
9.2.7 Wave system partitioning . 35
9.3 Estimation of wave power using parameterized sea states . 35
9.4 Aggregation and statistics of results . 36
9.4.1 General . 36
9.4.2 Mean . 36
9.4.3 Standard deviation . 37
9.4.4 Percentiles . 37
9.4.5 Monthly variability . 37
9.5 Uncertainty of the resource assessment . 37
10 Reporting of results . 38
10.1 General . 38
10.2 Selection of study points . 38
10.3 Technical report . 38
10.4 Digital database . 39
10.5 Presentation of regional information . 40
10.6 Presentation of information at study points. 41
Annex A (normative) Calculation of annual energy production (AEP) . 45
A.1 Wave energy converter AEP at primary site . 45
A.2 Standard methodology . 45
A.3 Alternative methodology . 45
A.4 Completeness of the capture width matrix for AEP . 46
A.5 Wave energy converter AEP at a second location using measured
assessment data . 46
A.5.1 Connection to 62600-100 . 46
A.5.2 Calculate AEP at Location 2 using complemented capture width matrix
and Location 2 resource data. 46
A.5.3 Assessment of confidence . 47
A.6 Example Analysis . 47
A.6.1 Connection to 62600-100 . 47
A.6.2 Calculate AEP at Location 2 using complemented capture width matrix
and Location 2 resource data. 47
A.6.3 Assessment of confidence . 48
A.7 Sources of uncertainty for AEP at Location 2 . 48
A.7.1 Comparisons between Location 1 and Location 2 . 48
A.7.2 Bathymetry and water depth . 48
A.7.3 Current . 48
A.7.4 Wave spectrum . 49
A.7.5 Wave direction and short-crested waves . 49
A.7.6 Wave converter modifications . 49
Annex B (normative) Evaluation of measurement uncertainty . 50
B.1 General . 50
B.2 Uncertainty analysis . 50
Annex C (informative) A method for sensitivity analysis . 51
C.1 General . 51
C.2 Specification of significance . 51
– 4 – IEC TS 62600-101:2024 © IEC 2024
C.3 Sample sea states . 52
C.4 Condition of insensitivity . 52
Annex D (informative) Example calcu
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