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Agenda item 2: Summary of responses. Presented by: Michel BORELY EUROCONTROL. Structure of this presentation. Presentation of the Guidelines V1.0 The consultation process Way ahead. Content of the Guidelines.
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Agenda item 2: Summary of responses Presented by: Michel BORELY EUROCONTROL
Structure of this presentation • Presentation of the Guidelines V1.0 • The consultation process • Way ahead Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Content of the Guidelines • Guidelines recognise the importance of both wind energy and air transport industries. • Both have challenging objectives. The aim of the guidelines is to accommodate both. • Guidelines remind the reader that ANSPs are legally responsible for the safe and expeditious movement of air traffic in their designated airspace. • Guidelines are a technical document and do not advise on financial or legal aspects. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Content of the Guidelines • The Guidelines do not provide detailed operational guidance. • The Guidelines are not mandatory. • The Guidelines are adaptable. • Guidelines are limited to ATC surveillance. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Structure of the Guidelines • The 3 components of the guidelines: • A process. • An assessment methodology. • A set of mitigation options. • Promote the early and continuous discussion between wind energy developer and ANSP. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
The process Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
The Methodology • V1.0 Retains the 4-zone approach with clarifications: • Zone 1: safeguarding area. • Zone 2: • is not a no-go area. • But it requires a specific impact assessment – the scope and detail of which are to be agreed. • Zone 3: simple and generic impact assessment is possible. • Zone 4: free area. • Zones 2, 3 and 4 are not annular bands. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
PSR Zones Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
SSR Zones Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Radar line of sight • Radar line of sight calculation: • The Guidelines do not recommend any tool. • The Guidelines do not list available tools. • However, a list of tools will be made available on the EUROCONTROL website. • The tool must be agreed between wind energy and ANSP: • Selected in accordance with the type of assessment, the required level of resolution and local conditions. • Must be familiar to the ANSP. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation Options • The Mitigation Options section has been improved: • More comprehensive listing, • Presentation improved. • Mitigation options should be selected to: • Maintain air traffic safety. • Be cost-effective. • Result in a net saving in terms of CO2. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation options (Process) • Apply the process described in the guidelines • Provide surveillance input information • Provide operational input information • Initiate discussion on new projects Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation options (PSR) • Mitigations applicable to non cooperative surveillance (PSR): • Blank PSR transmission in an azimuth sector • Suppress PSR radar returns in range-azimuth sector • Improve PSR anti wind turbine clutter capabilities • Strengthen primary track initiation conditions • Adapt PSR overload prevention facilities • Upgrade PSR processing capabilities • Upgrade PSR output interface capabilities • In-fill PSR • In-fill MSPSR (when developed) Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation options (SSR) • Mitigations applicable to cooperative surveillance (SSR): • Blank SSR transmission in an azimuth sector • In-fill SSR • In-fill WAM • In-fill ADS-B • Improve SSR anti-reflection capabilities Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation options (ATC Ops.) • Mitigations applicable to ATC operations: • Move ATC route • Change airspace classification or apply Mandatory Transponder Zone (MTZ) Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigation options (wind energy project cont.) • Mitigations applicable to wind energy project: • Move wind turbine out of radar line of sight • Move wind turbine out of critical areas • Change wind farm layout • Reduce number of wind turbines in radar line of sight • Reduce wind turbine EM reflectivity Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
The consultation process • Started 25th June 2009 • Six-month period up to 29th January 2010 • February-March 2010 processing of comments by the Wind Turbine Task Force • Dedicated sub-group (10-11th February 2010) • Plenary WTTF meeting (25th February 2010) • Informal consultation with EWEA on a new draft. • 29th April 2010 Presentation of the results of the consultation process. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
The consultation feedback • 174 comments received from 12 organisations: • Wind energy industry • EWEA - 24 • Radar industry • Thales Air Systems (Fr) - 29 • Consultant • TNO (NL) - 5 • Navcom (Germany) - 17 • Pager Power (UK) - 56 • EADS (Germany) - 1 • KUL (Belgium) - 1 • ANSP/CAA • Belgocontrol - 10 • Infratil (UK airports) - 10 • AOA (UK airport association) - 10 • UK CAA - 1 • UK MoD - 10 Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Results of comment processing • Of the 174 comments: • 88 accepted or partially accepted (50.6%) • 66 noted (37.9%) • 20 rejected (11.5%) • A detailed summary of responses will be published. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
The families of comments • 14 different categories of comments were identified: • Cosmetic • Cumulative impact • Document status • Document 015 • Equations • Financial aspects • Line of sight • Mitigations • Operations • Process • Safety • Specific assessment vs. detailed/complex • Vocabulary • Zone definition Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Cumulative impact • Comment: • Wind energy projects are often windfarms rather than single wind turbine projects. • Assessment is based on single wind turbine assessment. • Addition of explanations on how to assess cumulative impact of multiple wind turbines. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Document status • Comment: • Guidelines are not a mandatory document however they include « shall » statements. • Explanation of the objectives of EUROCONTROL guidelines within the EUROCONTROL Regulatory and Advisory Framework (ERAF). • Explanation of why « shall » may be included in non mandatory documents. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Document 015 • Comment: • Relationship with ICAO EUR Document 015 is unclear. • ERAF foresees that EUROCONTROL Guidelines may supplement/clarify ICAO regional document. • Relationships with Doc 015 explicitly stated. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Document 015 (Cont.) • Doc 015 is based on one surface (i.e. 2 zones) Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Document 015 (Cont.) • If application is outside the BRA: no problem. • If application infringes the BRA: engineering authority will conduct appropriate analysis based on theory, experience and existing conditions. But Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Equations • Comment: • Alternative equations were proposed. • Simplification when possible. • Change of equation: rarely possible because the work and the agreement of the WTTF was based on these equations. • In the future, if new equations are proved to be more accurate they could be included. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Financial aspects • Comment: • Clarify who should pay for mitigations • These guidelines are a technical document and do not address financial aspects. • Early discussions should help to minimise costs and to agree on the financial aspects. • Cost/efficiency is one of the recommended criteria for mitigation selection. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Radar line of sight calculation (RLOS) • Comment: • Which RLOS tool should be used? • Difficult to maintain an accurate and exhaustive list of tools in a document (will be posted on the EUROCONTROL website). • Tool should be agreed, tool should be familiar to the ANSP so that he knows its limitations and drawbacks. • Tool selection and parameterisation should depend on the level of accuracy needed. • Guidelines require ANSP to inform which RLOS tool is in use. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Mitigations • Comment: • Are there priorities for the selection? Are there any other possible mitigations? Can a PSR be replaced by SSR? • No priorities, but selection criteria are now defined: Maintain safety Cost/efficiency Net CO2 saving • Additional mitigations have been included. • SSR should not be assumed as a mitigation for PSR. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Operations • Comment: • Focus the assessment on those areas where there may be operational impact. • Combined technical and operational assessment • Within the specific assessment, focus shall be put on where the technical impact may lead to an operational issue. • Iterative approach rather than a waterfall approach. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Operations • Comment: • Provide criteria and methodology to support an operational assessment. • One size does not fits all. • Traffic configurations are different. • Operational environments are different. • … • It is recognised as an area where the document could be developed further. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Process • Comment: • Improved interface with Surveillance Service Providers. • Single Point Of Contact: • Generic email address recommended. • Be aware that multiple Surveillance Service Providers may operate in the same country (e.g. civil and military). • Process input information: • Requirements to provide the necessary information to support the assessment process. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Safety Comment: Aviation safety must not be affected. • Safety is a paramount objective of the aviation industry. • ANSP are legally responsible for the safe and expeditious movement of air traffic in their designated airspace. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Specific assessment vs. detailed/complex assessment Comment: • Repeated reference to detailed or complex assessment is discouraging and could establish go/no-go mentality. • Specific assessment introduced: • Not based on generic criteria. • Scope and level of detail are to be agreed. • Not a no-go zone. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Zone definition • Comment: • The structure and nature of the Zones could be confusing. • Zones are exclusive and are neither order of steps nor annular bands. • Clarification of the zone limits (radar maximum range, radar line of sight). • WTTF may agree new zone limits on the basis of new evidence or trial results. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Zone definition Visibility calculated at 320 m above radar ground level • Examples are now included. 15 km Zone 2 Zone 3 Zone 4 103 km Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Way ahead • WTTF will propose to continue under an updated mandate : • Maintain the guidelines taking into account feedback, new studies and experiments, • Address other surveillance technologies (WAM, ADS-B, …), • Wider representation: • wind energy, radar manufacturers, etc. • Meeting once a year. Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010
Michel BORELY Secretary of the EUROCONTROL Wind Turbine Task Force EUROCONTROL Rue de la Fusée 96 B-1130 Bruxelles Phone +32 (0)2 729 11 61 Fax +32 (0)2 729 90 86 michel.borely@eurocontrol.int www.eurocontrol.int/surveillance Sustainable Energy - Sustainable Surveillance Workshop - EUROCONTROL, Brussels, April 2010