(9 2) BL Witness Statement
Total Page:16
File Type:pdf, Size:1020Kb
MORTLAKE WIND FARM PERMIT AMENDMENT APPLICATION EXPERT WITNESS STATEMENT OF BRETT LANE ACCIONA Energy Australia Global Pty Ltd Suite 5, 61-63 Camberwell Road, Hawthorn East, Vic. 3123 P O Box 337, Camberwell, Vic. 3124 Ph. (03) 9815 2111 Fax. (03) 9815 2685 November 2016 Report No. 12020 (6.2) Mortlake Wind Farm – Amendment Application –Witness Statement of Brett Lane Report No.12020 (6.2) CONTENTS 1. WITNESS INFORMATION ...................................................................................... 1 1.1. Expert witness information .......................................................................... 1 1.1.1. Name and address .............................................................................. 1 1.1.2. Area of expertise .................................................................................. 1 1.2. Information of other significant contributors ............................................. 1 1.3. Role of Brett Lane ........................................................................................ 1 2. WORK UNDERTAKEN ........................................................................................... 3 2.1. Amendment biodiversity assessment......................................................... 3 2.2. Further bird and bat impact assessment ................................................... 4 2.3. Sources of information ................................................................................ 5 3. FINDINGS .............................................................................................................. 6 3.1. Native Vegetation ......................................................................................... 6 3.2. Birds .............................................................................................................. 9 3.3. Bats ............................................................................................................. 10 3.4. Conclusion .................................................................................................. 11 3.5. Collision risk ............................................................................................... 11 4. REVIEW OF SUBMISSIONS ................................................................................ 12 5. DECLARATION ..................................................................................................... 18 6. REFERENCES ...................................................................................................... 19 TABLES Table 1: Details of other significant contributors ...................................................... 2 Table 2: Response to submissions ........................................................................... 13 APPENDICES Appendix 1: Qualifications and experience of Brett Lane ....................................... 20 Appendix 2: Qualifications and experience of Elinor Ebsworth, Khalid Al-Dabbagh and Bernard O’Callaghan .................................................................................. 23 Appendix 3: Analysis of additional potential bird flights at risk for the largest possible turbine designs.................................................................................... 30 Page | i Mortlake Wind Farm – Amendment Application –Witness Statement of Brett Lane Report No.12020 (6.2) 1. WITNESS INFORMATION 1.1. Expert witness information 1.1.1. Name and address Brett Alexander Lane Brett Lane & Associates Pty Ltd Suite 5, 61-63 Camberwell Road Hawthorn East, Vic. 3123 1.1.2. Area of expertise Brett Lane has extensive expertise in terrestrial ecology and related legislation and policies. He has particular expertise in the impacts of wind farms on wildlife, having advised on such impacts for over 80 projects throughout Australia, from pre-feasibility assessments to post-operational monitoring and reporting programs. His qualifications and experience are summarised in Appendix 1. 1.2. Information of other significant contributors The names, addresses and areas of expertise of other significant contributors to this report, and associated background reports, are presented in Table 1. 1.3. Role of Brett Lane I confirm that my role in the assessment of the Mortlake Wind Farm has been: . Project Director and internal peer reviewer for the original ecological assessments of the proposed wind farm (2007 onwards); . Project Director and internal peer reviewer for the 2015 and 2016 re- assessment of bird and bat impacts of the revised turbine design that is the subject of the exhibited amendment application; and . Preparation of this witness statement. Page | 1 Mortlake Wind Farm – Amendment Application –Witness Statement of Brett Lane Report No.12020 (6.2) Table 1: Details of other significant contributors Location of summary of Name of contributor Address Area of Relevant Expertise qualifications and expertise Brett Lane & Associates Pty Ltd Ecological assessment, including native Elinor Ebsworth Suite 5, 61-63 Camberwell Road, Appendix 2 vegetation and flora. Hawthorn East, Vic. 3123 Brett Lane & Associates Pty Ltd Bird and bat utilisation surveys and data Khalid Al-Dabbagh Suite 5, 61-63 Camberwell Road, Appendix 2 analysis Hawthorn East, Vic. 3123 Brett Lane & Associates Pty Ltd Project Manager, Wind farm ecological Bernard O’Callaghan Suite 5, 61-63 Camberwell Road, Appendix 2 impact assessments Hawthorn East, Vic. 3123 Page | 2 Mortlake Wind Farm – Amendment Application –Witness Statement of Brett Lane Report No.12020 (6.2) 2. WORK UNDERTAKEN Brett Lane & Associates Pty Ltd (BL&A) completed an assessment of the impacts of modifications to the turbine specifications and layout of the Mortlake Wind Farm on biodiversity in 2015 and 2016, the results of which have been compiled in the flora and fauna report that accompanied ACCIONA’s August 2016 Amendment Application (Appendix 11). The report was: . BL&A (2016) ‘Mortlake Wind Farm – Biodiversity impact assessment of modified project design.’ Report 12020 (5.9) to ACCIONA Energy Australia Global Pty Ltd. The work undertaken is summarised below. 2.1. Amendment biodiversity assessment This report considered the following biodiversity attributes and compared impacts of the original permitted turbine design with an amended turbine design: . Native vegetation; . Birds (including the Brolga); and . Bats (including the Southern Bentwing Bat). Native vegetation work undertaken for the amendment application is summarised below. Whereas the original layout of the ‘Mortlake South’ wind farm avoided any impacts on native vegetation, assessment of the amended layout (BL&A 2016) addressed impacts on eight small areas of potential remnant native vegetation on roadsides and in a former railway reserve from access tracks and underground power cabling. The amended wind farm layout was assessed in accordance with the native vegetation permitted clearing regulations that are currently applicable, namely the biodiversity assessment guidelines (DEPI 2013). During the 16th November 2016 site visit, each of these eight areas was revisited to determine if, after a spring growth season, native grass species were evident at greater than 25% perennial cover (and greater than 50% cover in the case of the EPBC Act listed threatened community: Natural Temperate Grassland of the Victorian Volcanic Plain, or NTGVVP). Bird impact work undertaken for the amendment application is summarised below. The original Mortlake South wind farm bird utilisation survey data were collected at bird flight height intervals corresponding only with the turbine specifications at the time (i.e. below, at or above an RSA height of 40 to 120 metres). Therefore it was not possible to directly compare the impacts on birds of turbines of different dimensions and heights. To enable an assessment of turbines of different dimensions and heights, data from later surveys at ten other inland sites in mainland south eastern Australia were pooled to determine the percentage of birds flying at 10 metre Page | 3 Mortlake Wind Farm – Amendment Application –Witness Statement of Brett Lane Report No.12020 (6.2) intervals up to 40 metres. The August 2016 report assesses impacts based on the percentage of birds flying at different heights from this pooled data set. During the native vegetation assessment in November 2015, it was obvious that there had been no significant changes in land use, farming activities or revegetation works. For this reason, the original 2007 bird utilisation survey results were still considered representative of bird species and relative abundance on the site and, therefore, a valid basis for assessing the impacts on birds of the amended turbine layout and specifications; with the exception of flight heights for which other data were relied upon (see previous point). Bat impact work undertaken is summarised below: . A qualitative assessment of bat impacts from the amended wind farm design was undertaken based on a combination of a lowering of the RSA (increasing risk to bats) and a reduction in the number of turbines partly off-setting this increased impact. Consideration was also given to the species of bats recorded during the 2007 bat utilisation surveys and whether threatened species would be affected. During the native vegetation assessment in November 2015, it was noted that there had been no significant changes in land use, farming activities or revegetation works. For this reason, the original 2007 bat surveys results were still considered representative of the bats on the site and, therefore,