Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo

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Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
27 August 2019

Floating Lidar Measurements, IEA Wind RP 18 and the               Dr Peter Clive
Future of Standards and Guidance for Lidar            Principal Wind Energy Consultant
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
“In the course of developing this recommended practice
document the authors are aware that this is a ‘stepping
stone’ on the way to a normative standard”

                  (IEA Wind RP 18 Floating Lidar Systems,
          Section 9. Recommendations for Further Work)

                                                            2
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Contents

• Industry adoption and experience of floating lidar
• Pre-normative guidance: Carbon Trust OWA and IEA Wind Task 32
• Context: the IEC 61400-50 series of standards
   • Contents of standard
   • Timeline
• Preparing for the future:
   • Richer data sets mean better projects
   • Supporting the deployment of floating wind turbines

                                                                  3
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Industry Adoption and Experience of Floating Lidar

     Source: Carbon Trust OWA “Deployments of Floating LiDAR Systems” (2018)   4
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Industry Adoption and Experience of Floating Lidar

     Source: Carbon Trust OWA “Deployments of Floating LiDAR Systems” (2018)   5
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Industry Adoption and Experience of Floating Lidar

     Source: Carbon Trust OWA “Deployments of Floating LiDAR Systems” (2018)   6
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Draft Areas for Lease based on Marine Scotland draft plan

• Marine Scotland have
  released a draft Sectoral
  Plan:
   • Regions that are suitable
     for lease (subject to
     change)
   • key constraints
   • site characteristics

                                 Map of Scottish sites identified in the Marine Scotland Scoping Study. Contains public sector information
                                 licensed under the Open Government Licence v3.0. For licence information see
                                                                                                                                             7
                                 nationalarchives.gov.uk/doc/open-government-licence/version/3
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Tha mi an dòchas gum bi
crainn-ghaoithe air
fleodradh agus stòr-lùth
le chéile 'gan chur an
gnìomh ri iar air Innse
Gall luaithe an àite
maille. Bhiodh math aig
eaconomachd ionadail.
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Floating Lidar Measurements, IEA Wind RP 18 and the Future of Standards and Guidance for Lidar - Dr Peter Clive - Zenodo
Navy opposed to
Southern California
OSW due to congestion
Shipping lanes and
heavy naval operations
Pre-normative guidance:
Carbon Trust OWA and IEA Wind Task 32
• OWA Recommended Practices for Floating LiDAR Systems (2016)
• IEA Wind RP 18 Floating Lidar Systems (2017)
• OWA Roadmap for the Commercial Acceptance of Floating LiDAR Technology
   • Version 1.0 2013, Version 2.0 2018
   • Three stages of technological maturity
      • Baseline: lidar "proven" onshore
      • Pre-commercial: sea trial, acceptance criteria met
      • Commercial: experience represents full range of operational conditions
   • Subjective versus objective criteria
   • Qualitative "confidence" versus quantitative "uncertainty" and KPIs
   • Replication of TRL scheme

                                                                                 14
Context: the IEC 61400-50 series of standards

• Reorganization of wind measurement standards underway
• Disaggregation of IEC 61400-12-1:2017
• Separation of measurement methods, e.g. met masts, remote sensing, from
  data requirements of use cases, e.g. noise impact assessment, power
  performance testing, wind resource and site suitability assessment, etc.
• Shorter, more versatile, more easily maintained documentation
   •   IEC 61400-50-1 - Met masts (c.f. Annexes F, G)
   •   IEC 61400-50-2 - Ground based lidar (c.f. Annex L)
   •   IEC 61400-50-3 - Nacelle mounted lidar (in progress)
   •   IEC TS 61400-50-4 - Floating lidar (present proposal)

                                                                             15
Context: the IEC 61400-50 series of standards
- Contents of the proposed standard
• Follow the pattern, mutatis mutandis, established by 50-2 and 50-3
• Adopt & develop relevant content from pre-normative guidance
   • Introduction & scope, normative references, terms & definitions, symbols & units
   • Minimal functional requirements, ancillary equipment & associated guidance
   • Calibration & uncertainty of intermediate values
      • (N.B. potential incorporation of proposals from Carbon Trust OWA Lidar
         Uncertainty Standard Review (2018) into uncertainty calculations)
   • Classification & uncertainty of final values
      • (N.B. potential extension of "evidence base" scheme that elaborates on progress
         in IEC 61400-50-3, Carbon Trust OWA Roadmap, & aligns with TRL)
   • Preparation for measurement campaign, measurement procedure, & reporting
                                                                                      16
Context: the IEC 61400-50 series of standards
- Proposed timeline
                                              TS: publication to align with stability of
                                             related standards to allow co-ordination
    Call for experts                                              of all lidar guidance

                 M1: Scope       M2: Draft               M3: CD(V)

                                                                                           Q1 2021
 Q2 2019    Q3 2019    Q4 2019   Q1 2020      Q2 2020      Q3 2020     Q4 2020

                                                                                           17
Strategic outlook: preparing for the future

• Anticipated increase in deployment of offshore wind
   • In particular floating wind, where floating lidar offers the only source of pre-
     construction site measurements
• Synchronisation of lidar standards around 2021
   • Opportunity to co-ordinate next editions to reflect full lidar capabilities rather than
     restriction to the emulation of met masts: richer datasets, better projects
• Emerging post-subsidy environment will require proper application of full
  capabilities to deliver realistic energy assessments that identify all
  opportunities for optimisation and support through-life management
• Emerging methodologies, e.g. RECAST, that integrate lidar with models in a way
  that allows alignment of project metrics at all phases with measurement
  methods compatible with all phases
                                                                                               18
Conclusions

• Industry is using floating lidar and would benefit from standardisation
• Mature and stable pre-normative guidance is available as a basis
• A community of experts and practitioners with project experience exists
• The technology is likely to be the principle source of pre-construction site data
  for the next generation of offshore wind projects, in particular floating wind far
  offshore
• There is an opportunity to align different measurement standards arising in
  approximately 2021 which provides a broader context
• There is an opportunity to provide guidance from 2021 onwards that supports
  the exploitation of the full capabilities of available measurement technologies
                                                                                  19
27 August 2019

Peter Clive
+44 1737-856-383
+44 7739-909-040   https://www.linkedin.com/in/pclive/
CliveP@bv.com
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