Kojonup Flat Rocks Wind Farm, Stage 1

Location

Value

$45M – $50M ~

Client

Enel Green Power

Completion Year

2023
Project Overview

Flat Rocks Wind Farm Stage 1 set a new benchmark for wind energy in WA, featuring 18 Vestas V150-4.2MW turbines – the tallest in the state at 200m. Located 250km southeast of Perth, the project delivers 76MW of renewable capacity. Engaged under a design and construct contract, Westforce delivered the civil balance of plant (CBoP) works, including turbine foundations, internal roads, hardstands, a new substation, and a full O&M facility.

Completed in just 11 months, the project demanded precise sequencing and large-scale coordination. Westforce’s in-house resources and direct delivery model ensured tight control across all program aspects, underscoring our growing role in WA’s renewable energy future.

Westforce delivered a full CBoP design and construct scope, including:

  • Detailed design of turbine foundations, internal roads, hardstand areas and O&M facility
  • Site preparation including opening and operation of an on-site gravel pit
  • Drill and blast operations for rock removal
  • Public road intersection upgrades and site entry construction
  • Construction of 15km of internal roads and crane hardstands
  • Concrete foundations for 18 wind turbines
  • Drainage systems and crossing structures across the site
  • Construction of the O&M building and support infrastructure
  • Management and operation of on-site batching plant

Concrete: 12,000m³ ~
Bulk Earthworks: 270,000m³ ~
Reinforcement: 1200T ~
Internal Roads: 15km ~
Culverts and Road Crossings: 650m ~
Operational Capacity: 76MW

Location

Value

$45M – $50M ~

Client

Enel Green Power

Completion Year

2023
Project Overview

Flat Rocks Wind Farm Stage 1 set a new benchmark for wind energy in WA, featuring 18 Vestas V150-4.2MW turbines – the tallest in the state at 200m. Located 250km southeast of Perth, the project delivers 76MW of renewable capacity. Engaged under a design and construct contract, Westforce delivered the civil balance of plant (CBoP) works, including turbine foundations, internal roads, hardstands, a new substation, and a full O&M facility.

Completed in just 11 months, the project demanded precise sequencing and large-scale coordination. Westforce’s in-house resources and direct delivery model ensured tight control across all program aspects, underscoring our growing role in WA’s renewable energy future.

Westforce delivered a full CBoP design and construct scope, including:

  • Detailed design of turbine foundations, internal roads, hardstand areas and O&M facility
  • Site preparation including opening and operation of an on-site gravel pit
  • Drill and blast operations for rock removal
  • Public road intersection upgrades and site entry construction
  • Construction of 15km of internal roads and crane hardstands
  • Concrete foundations for 18 wind turbines
  • Drainage systems and crossing structures across the site
  • Construction of the O&M building and support infrastructure
  • Management and operation of on-site batching plant

Concrete: 12,000m³ ~
Bulk Earthworks: 270,000m³ ~
Reinforcement: 1200T ~
Internal Roads: 15km ~
Culverts and Road Crossings: 650m ~
Operational Capacity: 76MW

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