Endeavour Energy’S G/Net Master Facility Model (And Extract from Google Maps Street View) There Is
Total Page:16
File Type:pdf, Size:1020Kb
Bruce Zhang Subject: FW: NSW Planning, Industry & Environment Request for SEARs SSD-10436 ESR Horsley Logistics Park Attachments: DP1214912 UIS0700 RPM17485 Johnston Cres Horsley Park.pdf; SW08773 Work near underground assets.pdf; EE Fact Sheet Building Conctruction.pdf; EE FPJ 6007 Technical Review Request Aug 2019.pdf; EE General Restrictions OH Power Lines Dec 2019.pdf; EE Guide for Padmount Substations.pdf; EE MDI0044 Easements and Property Tenure.pdf; EE Safety on the job.pdf; EE Safety Plumbing.pdf; ENA EMF What We Know.pdf; SW Work near overhead power lines.pdf From: Cornelis Duba <[email protected]> Sent: Wednesday, 25 March 2020 11:31 AM To: Bruce Zhang <[email protected]> Subject: NSW Planning, Industry & Environment Request for SEARs SSD‐10436 ESR Horsley Logistics Park Hello Bruce I refer to your below email of 12 March 2020 regarding the Secretary’s Environmental Assessment Requirements (SEARs) for State Significant Development SSD‐10436 for ESR Horsley Logistics Park being the staged development of the Horsley Logistics Park for a warehousing and distribution hub including a Concept Proposal and Stage 1 Development located at 6 Johnston Crescent, Horsley Park (Lot 103 DP 1214912) in the Fairfield City Local Government Area. Submissions need to be made to the Department by 27 March 2020. As shown in the below site plans from Endeavour Energy’s G/Net master facility model (and extract from Google Maps Street View) there is: An easement over the site benefitting Endeavour Energy (indicated by red hatching) for 132,000 volt / 132 kilovolt (kV) high voltage overhead power lines, overhead earth cables and overhead pilot cables (carrying protection signals or communications between substations) to the eastern side boundary within the E2 – Environmental Conservation corridor. Restrictions for fire rating and swimming pools and spas for the easement for padmount substation no. 35410 (indicated by the symbol ) located on the adjoining Lot 102 DP 1214912 – please refer to the attached copy of DP 1214912. Low voltage and 11,000 volt / 11 kV high voltage underground cables and underground earth cables to the Johnstone Crescent road verge / roadway. The low voltage underground cables extend onto the site to a streetlight (indicated by the symbol ). Please note the location, extent and type of any electricity infrastructure, boundaries etc. shown on the plan is indicative only. Generally (depending on the scale and/or features selected), low voltage (normally not exceeding 1,000 volts) is indicated by blue lines and high voltage (normally exceeding 1,000 volts but for Endeavour Energy’s network not exceeding 132,000 volts / 132 kV) by red lines (these lines can appear as solid or dashed and where there are multiple lines / cables only the higher voltage may be shown). This plan only shows the Endeavour Energy network and does not show electricity infrastructure belonging to other authorities or customers owned electrical equipment beyond the customer connection point / point of supply to the property. This plan is not a ‘Dial Before You Dig’ plan under the provisions of Part 5E ‘Protection of underground electricity power lines’ of the Electricity Supply Act 1995 (NSW). In regard to the low voltage underground cables on the site, they are located within a proposed extension of Johnston Crescent which is not yet dedicated as a public road. Notwithstanding, although not held under easement, the existing low voltage underground cables are regarded as protected assets under the Electricity Supply Act 1995 (NSW) Section 53 ‘Protection of certain electricity works’. The owner or occupier of the land cannot take any action by reason of the presence or operation of the electricity works in, on or over the land ie. they cannot remove the 1 electricity infrastructure from the property. These protected assets are managed on the same basis as if an easement was in existence – please refer to the below point ‘Easement Management / Network Access. In accordance with the attached copy of Endeavour Energy’s Mains Design Instruction MDI 0044 ‘Easements and Property Tenure Rights’, and as shown in the following extract of Table 1 – ‘Minimum easement widths’, the padmount substation requires a minimum easement of 2.75 x 5.5 metres and the 11 kV high voltage underground cables (assumed to have no concrete protection unless proven otherwise) requires a 3 metre minimum easement width ie. 1.5 metres to both sides of the centre line of the cable ducts. Endeavour Energy would expect that the Planning Secretary’s would require the applicant to address in utilities as a key issue in the future Environmental Impact Statement will: identify and address the existing capacity to service the development proposed and any augmentation requirements for utilities in consultation with relevant agencies; and identify and potential impacts of the proposed construction and operation on the existing utility infrastructure and service provider assets, and demonstrate how these will be protected, or impacts mitigated. For the first point please refer to the below point ‘Network Capacity / Connection’. In regard to the second point, Endeavour Energy has noted that the Request for SEARs report in Section 4.3. ‘State Environmental Planning Policies‘ reference is made to State Environmental Planning Policy (Infrastructure) 2007 (Infrastructure SEPP) but only refers to traffic generating development but not to Subdivision 2 ‘Development likely to affect an electricity transmission or distribution network’. For the easement for 132 kV high voltage overhead power lines, Endeavour Energy’s preference is to have continuity of its easements over the most direct and practicable route affecting the least number of lots as possible. Therefore, except in special circumstances such as a staged or facilitating subdivision, it generally does not support the subdivision of easements (even in part) and their incorporation into to multiple / privately owned lots. The incorporation of electricity easements into privately owned lots is generally problematic for both Endeavour Energy and the landowner and requires additional easement management to ensure no uncontrolled activities / encroachments occur within the easement. From the EIS, Figure 3 ‘Aerial View and Staging Plan’ and Appendix A ‘Concept Master Plan’ appear to indicate that the land within the E2 – Environmental Conservation corridor s not proposed to be subdivided / incorporated into the developable lots. Should this not be the case, consideration must be provided to an appropriate subdivision layout relevant to the easement and the structures therein – please refer to the below point ‘Easement Management / Network Access’. Subject to the foregoing and the following recommendations and comments Endeavour Energy has no objection to the State Significant Development. Network Capacity / Connection Endeavour Energy has noted that the Request for SEARs report includes copies of previous notices of determinations for the applicable site consents which includes a requirement for the submission of evidence from Endeavour Energy that satisfactory arrangements have been made for the provision of electricity services to all allotments. The availability of electricity supply to a site is based on a wide range of factors eg. the age and design of the network; other development in the locality utilising previously spare capacity within the local network; the progress 2 of nearby / surrounding sites including electricity infrastructure works eg. a smaller and isolated development that may not of its own accord require a distribution substation may require a substation to facilitate the development and from which the spare capacity is made available to subsequent nearby development. Areas of the network utilising padmount substations can accommodate loads from 315 kilovolt amperes (kVA)kVA up to 1,500 kVA (typically 500 kVA) ie. there is a significant variation in the number and type of premises able to be connected to a substation. Endeavour Energy’s G/Net master facility model indicates that padmount substation no. 35410 located on the adjoining Lot 102 DP 1214912 currently has 1 customer connection point servicing 1 premises ie. it only services the site on which it is located. Whilst it will have some spare capacity it would not be sufficient to supply a significant urban industrial subdivision. As well as the capacity of distribution substations, other factors such as the size and rating / load on the conductors and voltage drop (which can affect the quality of supply particularly with long conductor runs) etc. need to be assessed. Applicants should not automatically assume that the presence of existing electricity infrastructure or nearby similar development means that adequate supply is immediately available to facilitate their proposed development. Given the large size of the development (and notwithstanding it will be replacing a significant number of existing premises), an extension and/or augmentation of the existing network is likely to be required. However the extent of the works required will not be determined until a detailed assessment is undertaken. Endeavour Energy’s preference is to alert proponents / applicants (and the Department) of the potential matters that may arise as further development of areas continues to occur. In due course the applicant for the proposed development of the site will need to submit an application for connection of load via Endeavour Energy’s Network Connections