Westwood has the ability and the experience in the energy sector to act as a general contractor looking after all facets of high voltage projects, or we can perform work as a subcontractor looking after the electrical portion of the project. 

With both Brown and Green-field experience, we understand the risks involved with high voltage works and we have qualified supervisors and trades people to perform the highest quality work safely as well as on time and on budget.  In addition, we have the capabilities to offer design build services.

Westwood’s energy project capabilities include: 

  • Substations (up to 500kV)
  • Transmission & distribution
  • Renewable energy
  • Power generation
  • Carbon capture
  • Hydro electric
  • Bio fuel 

Featured Projects

AltaLink Barrhead Brownfield Substation

Westwood was selected as the General Contractor for the brownfield electrical installation and project management of an AltaLink substation located in Fort Assiniboine, AB.

The project scope involved:

  • Site clearing & grading, all civil, concrete foundations, screw piles, and fence installation
  • Transportation and placement of E-house from Edmonton to Fort Assiniboine
  • Replacement of the 20MVA 138kV / 25kV transformer
  • Installation 138kV disconnect switched, SF6 circuit breaker, CVT’s, CT’s, and PT’s
  • Installation of 25kV disconnect switches, CT’s and PT’s
  • Erection of all structural steel, IPS bus, and  insulators
  • Replacement of protection and control building
  • Demolition of all replaced high voltage equipment and protection and control systems Installation of Advanced Metering Infrastructure (AMI)

BC Hydro Enderby Substation

Westwood was awarded the subcontract for the BC Hydro Enderby substation project. The project involved all aspects of constructing an addition to an existing energized 138kV /25kV /12kV substation.

Scope of work included the installation of:

  • Civil and concrete coordination, ground grid, underground conduits, and fence installation
  • Erection of all structural steel and insulator installation
  • Assembly and oiling of 25MVA 138kV / 25kV power transformer
  • 138kV IPS Bus installation, welding, and 3rd party inspections
  • 138kV and 25kV steel structures, insulators, buswork, and connectors
  • Woodpole structure and timber crossarms on temporary wood structure
  • Removal and re-use of existing line disconnect switch
  • 138kV circuit switcher
  • 138kV, 25kV, & 12kV disconnect switches
  • 138kV SF6 circuit breaker
  • 138kV, 25kV, & 12kV surge arrestors
  • High voltage metering (CT’s and PT’s)
  • Two lightning shielding poles and wire
  • Transfer switch and AC distribution panel
  • Re-routing existing station service transformer cable to new transfer switch
  • Station service, power, control and communication cables

BC Hydro Merritt Greenfield Substation

Westwood was contracted by BC Hydro as the Prime and General Contractor to complete a Greenfield substation that comprised of the general works for the above sub-grade scope including electrical, mechanical, P&C/telecom, and civil.

Assemble and install all switchyard equipment, associated steel, rigid and flexible bus, above grade grounding, all P&C cabling and 138kV switchyard equipment:

  • Erection of all structural steel, low voltage structures and insulator installation
  • 138kV and 25kV IPS Bus installation, welding, and 3rd party inspections
  • Assembly and oiling of two 75MVA HHI Transformers, 138kV – 25kV
  • Four dead tank circuit breakers
  • Potential transformers
  • Surge arrestors
  • Line disconnects
  • Lightning mast and static shield cable system

Assemble and install all 25kV cabling and equipment inside control and GIS buildings including:

  • Five sections of 25kV GIS switchgear
  • Five sets of reactors
  • Two 500kVA pad mount transformers, 25kV – 120/208V
  • Fuse disconnects
  • 2000MCM 25kV cable pulls and terminations (stress cones and Pfisterers)
  • 500MCM 25kV cable pulls and terminations (stress cones and load breaks)

Control and GIS building: design, supply and install of:

  • Design, supply and install station security system
  • Design, supply and install of addressable fire alarm system (Including VESDA air sampling)
  • Design, supply and install of fire protection system (Including sprinkler and NOVEC clean agent suppression system)
  • Design, supply and install of HVAC DDC controlled system
  • Install and commission satellite dish communication system for telecommunications
  • Install 125VDC battery bank
  • Install all P&C and AC/DC distribution panels and station services 

Civil Works was subcontracted and included supply and installation of all station roadways and insulating crushed rock.


Canadian Hydro Developers Pingston Hydro Project

Westwood was contracted by Canadian Hydro Developers for the installation of a run-of-river 30 MW hydro electric generator including a new 69kV substation.

Electrical installation scope for the main electrical room, control room, and powerhouse consisting of:

  • Control, instrument and power wiring of the new Pelton water turbine and 30MW Leroy Somer generator
  • Electrical room consisting of 1.5 MVA 12kV / 600V distribution transformer
  • 8 sections of 12kV and 600V switchgear centers
  • Installation of 600V motor control centers
  • 120 VDC battery room and charging system
  • Installation of the DSC, vibration monitoring, and governor control systems
  • Building services including lighting, fire alarm, access control, security alarm, LAN, welding and service outlets, and make-up air units
  • Cable tray installation, all power, control and instrumentation cabling installation
  • All motors (600V), devices and instrumentation scope
  • Pre-Commissioning of the complete system

Construction of the 30MVA 69kV / 12kV substation consisting of:

  • Civil and concrete coordination, ground grid, underground conduits,  and fence installation
  • Assembly and oiling of the 30MVA 69 kV / 12kV power transformer
  • Installation of 69kV disconnect, CT’s and PT’s, and SF6 circuit breaker
  • Installation of 12kV disconnect, CT’s and PT’s Control including all protection and control wiring, battery system and building services

 


FortisBC Bentley Terminal Substation

Westwood was contracted by BC Hydro as the Prime and General Contractor to complete the 40,000 square meter Greenfield substation that comprised of the general works for the above and below grade scope including civil, concrete, electrical, mechanical, and P&C/telecom.

Assemble and install all switchyard foundations, oil containment, cable trench, equipment, associated steel, rigid and flexible bus, above and below grade grounding, all P&C cabling and 230kV, 161kV, 138kV, and 63kV switchyard equipment:

  • Erection of all structural steel, low voltage structures and insulator installation
  • 230kV, 161kV, 138kV and 63kV IPS Bus installation, welding, and 3rd party inspections
  • Installation, assembly and oiling of two 230kV 150MVA JSHP Transformers,
  • Refurbishment and installation, assembly and oiling of one 161kV 100MVA General Electric Transformer; this transformer was relocated as part of contract from the FortisBC RGA Substation located in Penticton, BC
  • Nine SF6 circuit breakers
  • Potential and current transformers
  • Capacitive voltage transformers
  • Surge arrestors
  • Line disconnects
  • Lightning mast and static shield cable system

Assemble and install all 25kV cabling and equipment inside control building including:

  • Two 500kVA pad mount transformers, 12kV – 120/208V

FortisBC Benvoulin Greenfield Substation

Westwood was contracted by FortisBC as the Prime and General Contractor for the completion of the Greenfield substation in Kelowna. This project included the installation of;

  • Installation, assembly, dressing and oiling of the 138/25kV 40MVA transformer
  • Installation 138kV disconnect switched, SF6 circuit breaker, CVT’s, CT’s, and PT’s
  • Installation of 25kV disconnect switches, CT’s and PT’s
  • Erection of all structural steel, IPS bus, and  insulators
  • Wiring of new P&C control room including P&C installation along with all building services
  • Protection and control cables and terms
  • Installation of SCADA system
  • Switchyard lighting

FortisBC Black Mountain Substation

Westwood was contracted by FortisBC to complete the installation of the Protection and Control panels and wiring including all building services and battery room for the complete Greenfield Black Mountain substation. This installation included;

  • 138kV / 25kV 40MVA transformer
  • Installation and jumper wiring of all P&C panels
  • SF6 Circuit breakers
  • Disconnect switches
  • High voltage metering (CT’s and PT’s)
  • Protection and control cables and terms
  • Building services installation including battery room installation and charger installaiton

The project schedule was very aggressive and Westwood double shifted our workers to ensure the FortisBC schedule objectives were achieved. 

FortisBC Duck Lake Brownfield Substation

Westwood was awarded the Prime and General Contract for the installation of the Duck Lake Substation physical arrangement and complete electrical installation. The substation was an existing station that had been de-energized and isolated from the system in order to install and upgrade. The installation scope included;

  • Installation, assembly, dressing and oiling of the 138/25kV 40MVA transformer
  • Installation 138kV disconnect switched, SF6 circuit breaker, CVT’s, CT’s, and PT’s
  • Installation of 25kV disconnect switches, CT’s and PT’s
  • Erection of all structural steel, IPS bus, and  insulators
  • Wiring of new P&C control room including P&C installation along with all building servies
  • Protection and control cables and terms
  • Installation of SCADA system
  • Switchyard lighting

FortisBC Ellison Substation

Westwood was awarded the Prime and General Contract to construction of a 138kV primary to 25kV secondary Greenfield substation including;

  • Installation, assembly, dressing and oiling of the 138/25kV 25MVA transformer
  • Installation 138kV disconnect switched, SF6 circuit breaker, CVT’s, CT’s, and PT’s
  • Installation of 25kV disconnect switches, CT’s and PT’s
  • Erection of all structural steel, IPS bus, and  insulators
  • Wiring of new P&C control room including P&C installation along with all building services
  • Protection and control cables and terms
  • Installation of SCADA system
  • Switchyard lighting
  • Commissioning assistance for Fortis upon startup

FortisBC Westminster Brownfield Substation

Westwood was awarded the Prime and General Contract to complete all above grade physical related work required to add a new 40MVA, 63kV/13kV power transformer T3 in a Brownfield substation environment.  T3 addition was required to facilitate an 8.6kV to 13kV voltage conversion program for the City of Penticton.

The upgrade also included:

  • 60kV and 13kV bus structures
  • HV and LV foundations
  • Transformer containment and drainage
  • Upgraded station grounding
  • All required conduits
  • Cabling and other supporting infrastructure Removal of the existing T2 transformer which was a 15MVA, 63kV/8.6kV unit

Mosaic K3 25kV Substation

Westwood was awarded the design build of a new 25kV substation to service the power requirements for the freeze ring for shaft sinking.

 The EPC components included:

  • Two 8MVA transformers c/w NGRs
  • 25kV and 4160V motorized disconnects
  • SF6 breakers
  • 4160V MCC c/w Kirk Key Interlock System
  • CTs and PTs
  • Incoming utility metering
  • Station service including a 45kVA pole mounted transformer
  • Transmission poles
  • Control room
  • Concrete pads for transformers and control room

SaskPower Boiler Rebuild, Flue Gas and 150MW Turbine Generator Facility

The scope consisted of a demolition and rebuilds of unit # 3 boiler, 150 MW turbine generator, and complete installation of the flue gas building. 

Unit #3 and #4 turbine/generator share a common control room so the demolition of unit #3 could not effect or shutdown unit #4. During the demolition many cables were removed and many identified as having common controls between the two turbine generator units. 

Electrical installation scope for the main electrical room, control room, steam turbine and cooling tower consisting of:

  • Control, instrument and power wiring of the refurbished steam turbine and 150MW General Electric generator
  • Electrical room consisting of 2.5 MVA 5kV / 600V distribution transformer
  • 15 sections of 5kV and 600V switchgear centers
  • 5kV and 600V motor control centers
  • Multiple 120 VDC battery room and charging systems
  • Installation of the DSC, Bentley Nevada vibration monitoring, and Woodward governor steam control systems
  • Building services including lighting, fire alarm, welding and service outlets, and make-up air units
  • Cable tray installation, all power, control and instrumentation cabling installation
  • All motors (5kV& 600V), devices and instrumentation scope
  • Approximately 10,500 meters of cable tray installed
  • Approximately 230,000 meters of cable pulled, glanded, and terminated
  • Approximately 2,700 instruments installed
  • Pre-Commissioning of the complete system

The new flue gas building was done from start to finish by Westwood including:

  • Building and equipment grounding
  • Building services including lighting, fire alarm, welding and service outlets, and make-up air units
  • Cable tray installation, all power, control and instrumentation cabling installation
  • Installation of all MCC’s, DSC and PLC electrical room
  • All terminations/commissioning

The rebuild of the boiler was done in parallel with the turbine/generator rebuild and was congested with several other trades. Collaborative efforts with SaskPower Engineers were critical to keep the unit #4 grid operational and Westwood achieved the demolition and rebuild without power interruption to the grid and no harm to personnel or equipment.


SaskPower Pasqua Substation Static Var System

Westwood assembled and installed all equipment and interconnecting conductors supplied by AlstomGrid. This project was carried out in an existing energized 138/16kV substation.

The installation scope consisted of:

  • Assembly and oiling of two 65MVA 138kV / 16kV power transformers
  • Erection of all structural steel and insulator installation
  • 138kV IPS Bus installation, welding, and 3rd party inspections
  • Multiple various size reactors and capacitors
  • 138kV and 16kV IPS bus complete with soft drops
  • Four deadtank circuit breakers
  • Outdoor motor control centres
  • Protection & control equipment
  • Lightning spires
  • Station & equipment grounding
  • Conduit, cable and electrical bulks
  • 138kV SF6 Breakers
  • 138kV and 16kV load break switches
  • Animal mitigation

Siemens GIS & Cable Installation

Complete installation of six sections 230kV GIS switchgear, including all required structural steel, torqueing, interconnecting control cabling, grounding, and cable tray, and HV cable installation.

Tolko Armstrong Co-generation Facility

Electrical installation of a woodfibre power boiler, 20MW generator, steam turbine, air condensing coils and associated equipment.  Electrically, the project team decided to use state of the art control systems for this installation.  The challenge was the coordination of the old and new equipment.

Westwood Engineering was responsible for:

  • Design and procurement of the new 20MVA - 138kV / 12kV substation
  • Fieldbus junction design and lay-out in coordination with automation designer
  • Electrical equipment layout from an efficient cost effective installation point, cable tray design and layout, and building lighting
  • Fire alarm and LAN design
  • We assisted the customer with the purchases for all the major electrical equipment and then worked with each vendor to coordinate timely equipment deliveries and the overall project schedule

Construction of the 20MVA 138kV / 12kV substation consisting of:

  • Civil and concrete coordination, ground grid, underground conduits,  and fence installation
  • Assembly and oiling of the 20MVA 138 kV / 12kV power transformer
  • Installation of 138kV disconnect, CT’s and PT’s, and SF6 circuit breaker
  • Installation of 12kV disconnect, CT’s and PT’s
  • Control including all protection and control wiring, battery system and building services
  • 4 km’s design / build of the 12 kV circuit from the generator bus to the substation

Electrical installation scope for the woodfibre power boiler consisted of:

  • Building services including lighting, fire alarm, welding and service outlets, and make-up air units
  • Natural gas fired assist Burner Management System installation (BMS)
  • Feed water, deaerator, screw conveyors, and grate system / ash recovery electrical installation
  • 1000+ H.P. induced and forced draft fans and feedwater pumps
  • Reverse osmosis (RO) water plant installation
  • Cable tray and vertical riser installation, all power, control, instrumentation cabling, and heat tracing installation
  • All motors (4160V & 480V), devices and instrumentation scope
  • Installation of an electrostatic precipitator for emission control

Electrical installation scope for the main electrical room, control room, steam turbine and air-cooled condensers consisting of:

  • Control, instrument and power wiring of the used steam turbine and 20MW General Electric generator
  • Electrical room consisting of 5 MVA 12kV / 4160V and 5MVA 12kV / 480V distribution transformers
  • 12kV, 4160V and 480V power distribution centers
  • 4160V and 480V motor control centers, 4160 variable speed drive with 8kV isolation transformer
  • Auto transfer system with back-up circuit
  • 120 VDC battery room and charging system
  • Delta V DSC, Bentley Nevada vibration monitoring, and Woodward governor steam control
  • Building services including lighting, fire alarm, welding and service outlets, and make-up air units
  • Cable tray installation, all power, control and instrumentation cabling installation
  • All motors (4160 & 480V), devices and instrumentation scope

Weyerhaeuser 30MW Turbo Generator Facility

Westwood was contracted by Weyerhaeuser Engineering Services for the installation of a 30 MW Steam Driven Turbine Generator, 15kV modifications to the site wide 15kV distribution system, and modifications within the 138kV / 15kV substation.

Electrical installation scope for the main electrical room, control room, steam turbine and cooling tower consisting of:

  • Control, instrument and power wiring of the used steam turbine and 30MW General Electric generator
  • Electrical room consisting of a 5MVA 15kV / 480V distribution transformer
  • 15kV and 480V switchgear centers
  • 480V motor control centers
  • 120 VDC battery room and charging system
  • GE Fanuc DSC, Bentley Nevada vibration monitoring, and Woodward governor steam control
  • Building services including lighting, fire alarm, welding and service outlets, and make-up air units
  • Cable tray installation, all power, control and instrumentation cabling installation
  • All motors (480V), devices and instrumentation scope
  • New 15kV switchgear to existing 15kV switchgear and creation of a tie bus system
  • Pre-shutdown Safe Work plans were developed over months in advance of the shutdown to ensure all tasks were identified and completed safely and on time.
  • Major modifications were completed during a 24 hour shutdown to the existing switchgear controls, substation and tie bus.
  • During the 24 hour power outage shutdown temporary 1500kW diesel generators were used to power up specific power distribution centers and lighting loads for areas requiring task, egress and walkway lighting, including the boiler stairwells and multiple floors, the existing switchgear / MCC room.