Final Environmental Impact Report
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MAINSTREAM RENEWABLE POWER SOUTH AFRICA NOUPOORT (PTY) LTD Proposed Construction of a Wind Farm near Noupoort, Northern Cape Province, South Africa Final Environmental Impact Report: DEA Ref No: 12/12/20/2319 NEAS Ref No: DEA/EIA/0000382/2011 Issue Date: 13 April 2012 Revision No.: Final Project No.: 10777 Date: 13 April 2012 Construction of a Wind Farm near Noupoort, Northern Cape Document Title: Province, South Africa: Final Environmental Impact Report Author: Shaun Taylor Revision Number: Final Checked by: Kelly Tucker Approved: Kelly Tucker Signature: For: SiVEST Environmental Division COPYRIGHT IS VESTED IN SiVEST IN TERMS OF THE COPYRIGHT ACT (ACT 98 OF 1978) AND NO USE OR REPRODUCTION OR DUPLICATION THEREOF MAY OCCUR WITHOUT THE WRITTEN CONSENT OF THE AUTHOR KEY PROJECT INFORMATION FARM DESCRIPTION 21 DIGIT SURVEYOR GENERAL CODE Remainder of the Farm No.168, Colesberg, C02100000000016800000 Noord Kaap Portion 1 of the Farm No. 181, Colesberg C02100000000018100001 Noord Kaap Portion 21 of the Farm No. 182, Colesberg C02100000000018200021 Road, Noord Kaap Harmonie TITLE DEEDS: Refer to Appendix 1 PHOTOGRAPHS OF SITE: General Characteristics of the study area General Characteristics of the study area SENSITIVE VISUAL RECEPTORS: Potentially sensitive areas have been identified. These particularly include the receptor locations in natural contexts located to the west of the site (away from the town of Noupoort) and a farmstead to the south of the site. TYPE OF TECHNOLOGY: Wind Energy - turbines HUB HEIGHT: 80-120m ROTOR DIAMETER : Up to 120 m SURFACE AREA TO BE COVERED: 55.1 Hectares for the wind farm infrastructure and 1 873 Hectares for the entire buildable area during construction. STRUCTURE ORIENTATION: The structures will not be fixed and will be able to rotate in order to catch the prevailing winds. TURBINE DESIGN: The final design is not available but average specs are presented below: FOUNDATION DIMENSIONS: Total footprint for each wind turbine and the associated hard standing area is approximately 2 800m². BLADE ROTATION DIRECTION: The blade rotation direction may be clockwise or counter- clockwise. This will only be selected once the final turbine designs have been selected. TEMPORARY LAYDOWN AREA DIMENSIONS: 100m X 100m (10 000m2) during construction. GENERATION CAPACITY: Depending on grid connectivity capacity will be either up to 30MW feeding into the 66kV line at Noupoort Substation or up to 188.6 MW feeding into the 132kV line at Newport Substation or breaking the 132 kV line south of Noupoort between the Newport and Ludlow Substations.. ONSITE MEASURED WIND PARAMETERS: Data is confidential. Mainstream has measured wind at sufficient height since September 2010. The data gathered indicates that there is enough wind resource to construct a viable wind farm . MAINSTREAM RENEWABLE POWER SOUTH AFRICA CONSTRUCTION OF A WIND FARM NEAR NOUPOORT, NORTHERN CAPE PROVINCE OF SOUTH AFRICA FINAL ENVIRONMENTAL IMPACT REPORT Executive Summary South Africa Mainstream Renewable Power Noupoort (Pty) Ltd (Mainstream) intends to develop a wind farm near Noupoort in the Northern Cape Province of South Africa. SiVEST Environmental Division has been appointed as independent consultants to undertake the Environmental Impact Assessment (EIA) for the proposed wind farm. The objective of the project is to generate electricity to feed into the National Grid by constructing wind turbines (and associated infrastructure). The proposed development requires environmental authorisation from the Department of Environmental Affairs (DEA). However, the provincial authority will also be consulted (i.e. the Northern Cape Department of Tourism, Environment and Conservation (NCDTEC). The EIA for the proposed development will be conducted in terms of the newly released EIA Regulations promulgated in terms of Chapter 5 NEMA (National Environmental Management Act), which came into effect on the 2nd of August 2010. In terms of these regulations, a full EIA is required for the proposed project. All relevant legislations and guidelines (including Equator Principles) have been consulted during the EIA process and will be complied with at all times. The proposed project is required to improve electricity supply to the Eskom Grid and to assist in achieving the Government’s mandate for the establishment of renewable energy generation facilities. The proposed project involves the construction of a wind farm. Layout alternatives have been investigated and these relate to the location of the proposed development and associated infrastructure on the site. These are illustrated below: Figure i: Site layout alternatives (refer to Appendix 7 for A3 Maps) Figure ii: Proposed grid access alternatives (refer to Appendix 7 for A3 Maps) The proposed wind farm site near Noupoort, falls within the following vegetation types: Karoo Escarpment Grassland; Tarkastad Montane Shrubland and Eastern Upper Karoo. The following assessments were conducted during the Impact phase to identify the issues associated with the proposed development. These include the following: . Biodiversity (including fauna and flora) Assessment . Avi-faunal Assessment . Bat Assessment . Surface Water Impact Assessment . Soils and Agricultural Potential Assessment . Visual Impact Assessment . Noise Impact Assessment . Heritage Assessment . Palaeontological Assessment . Socio-economic Impact Assessment Based on the impact studies that were conducted, a few sensitive aspects have been identified within the study area. These areas have been assessed and used to inform the final layout of the proposed wind farm. The table below summarises the specialist findings of the Impact Report. Table i: Summary of findings Environmental Summary of major findings Recommendations Parameter Biodiversity (Flora . The study area consists of a mix of natural veld and Sensitive areas have been identified within the and Fauna) unimproved grassland which is used as grazing land for boundaries of the study area. These relate to rocky cattle and sheep. Vast grazing land is interspersed incised cliffs, high mountain sides and tops as well as rivers river channels, which flow intermittently, are present. Large and wetlands. The preservation of these features, as mountains are present within the study site. well as conservation of biodiversity should be . Various mammal, amphibian and reptile species are likely maximised through the selection of a site that avoids to occur within the study area. areas of concern as highlighted in this report. The potential impacts of the proposed development during the construction phase mainly related to loss of habitat for The preferred area steers away from these sensitive red data and general species; potential loss of species areas and strict mitigation measures will further richness, edge effect and erosion. The impact of the reduce the identified impacts proposed development will be limited to the turbine construction areas and the associated infrastructure such as roads. Surrounding vegetation will remain intact and will not be impacted upon. As such the impact is localised and if the mitigation measures are implemented, the overall impact can be reduced. No significant impacts on vegetation and habitat are expected during the operation phase of the proposed development, as long as rehabilitation of the impacted surrounding areas has taken place. Avi-fauna . This proposed development site contains some intrinsic Identified sensitive and no-go areas have been avian biodiversity value. It does not contain any unique identified and must be respected. Additionally, habitats or landscape features, nor does it affect any recommended buffer zones particularly around the known, major avian fly-ways. However, the site contains Blue Crane nesting site must be enforced. two topographical characteristics that are usually linked to increased collision risk, namely slopes which could be used Implementation of the required mitigation measures by soaring species for lift, especially during light wind should reduce potential mortalities due to collision conditions, and valleys which act as natural funnels for with the wind turbines, displacement due to birds commuting through the site. If possible, these areas disturbance, habitat loss due to the footprint of the should be kept free of turbines. wind farm mortalities due to collision with associated . There are regionally and/or nationally important impact power line infrastructure impacts to Low. However, susceptible species present (or potentially present), and this can only be verified in the longer term by the proposed facility may have a significant detrimental implementing an integrated per- and post effect on these birds, both during the construction and construction monitoring programme which has been operational phases of the development. undertaken as of October 2011. Bats . Two species of bat were confirmed on site Egyptian free- The inland water bodies and stream areas indicated tailed bats (Tadarida aegyptiaca) and Cape serotine bats in the data of the buildable areas and their buffers (Neoromicia capensis)) but more species are considered to should be treated as sensitive, implicating that no be common here. Although neither confirmed species are turbines are allowed to be placed in this zone due to of conservation concern, they likely provide important agri- the elevated impacts it can have on bat mortalities and ecosystem services. and have been treated as such. No wind turbines . Construction phase impacts relate to destruction of bat