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Ellershouse Wind Farm

Alternative Resource Energy Authority
Renewable Resources
Project Management
Field Services
Electrical Engineering Studies
Project Title: 
Ellershouse Wind Farm 69kV-34.5kV Intertie Substation and 34.5kV collection system, Hants County, Nova Scotia, power system conceptual, preliminary, and detailed design and site development, project management and project cost estimating
Services We Provided: 
- Electrical Engineering Studies
- Design and Specifications
- Field Services
- Project Management
Project Description

Project involved the preparation of conceptual, preliminary and detailed designs, project management of electrical works, implementation of testing, and commissioning program and operational testing for the development of a 20MVA (provision for 24.5MVA), 69kV-34.5kV substation and related 34.5kV overhead generation collection system, development of substation installed costs, electrical, civil and structural systems.

Scope of Work

The specific scope of the project included the following elements:

  • Coordinated meetings with AREA, the Wind Farm developer and owner, Enercon, the wind turbine generator manufacturer/supplier, and Nova Scotia Power Inc. to discuss in general terms the project intention, review the System Impact Study and the Project Facilities Study and to establish/identify the most probable point of physical interconnection (POI) of the wind-derived generation system to the utility system
  • Prepared a detailed 69kV-34.5kV power system single line protection, control, and metering diagram which included a 12/16/20MVA, 69kV-34.5kV intertie substation and 34.5kV collection system, and all associated power systems, protection, control, metering, and SCADA interfaces
  • Prepared detailed installed cost estimates, detailed design drawing packages for the construction of all substation and collection system project-related electrical power system equipment including bulk power system, grounding, protection, control, metering, SCADA, teleprotection, telecontrol, and all related civil/structural requirements for substation site development.
  • Prepared detailed design drawing packages for the construction of a new 4km 69kV overhead transmission line, including two (2), 69kV overhead-underground cable systems, 69kV-34.5kV intertie substation, overhead collection systems; including poles and equipment, armless frame construction, optimum pole spacing, 34.4kV electrical equipment, crossarms, sag and tension tables, and guying requirements.
  • Provided review of overhead line construction, including electrical clearances, regulatory authority requirements, sags and tensions.
  • Provided construction management services and prepared and implemented a detailed electrical testing and commissioning and operational testing program for the 69kV transmission line, intertie substation and 34.5kV collection system.
Pictures of the Project
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