The site is located at the Tropicana Gold Mine, 340 km NE of Kalgoorlie, Western Australia and incorporates 4x 6.0 MW GoldWind Wind turbines, a 24MW solar farm and a 14MW battery storage system. It is expected to reduce Tropicana’s diesel and gas consumption for power generation by 96% and 50% respectively, slashing carbon emissions by more than 65,000 ton/yr on average over the life of the agreement. The renewable expansion of the existing power system was completed in 2025.
Detailed Design of the Civil Balance of Plant including:
- 4 Crane pads
- Access tracks from existing main mine access road
- 4 WTG foundations
- Solar farm earthworks.
Project Challenges
- Concrete grade overspecified
- Inability to source circular reinforcement in the local market.
How We Managed This
- Concession on concrete grade requested to the client
- Redesign of H.D. bolts bottom anchor plate
- Replacement of circular reinforcement with segmental reinforcement (innovative approach).
Value Engineering
- Assessment of the site-specific exposure classification for durability and the redesign of the H.D. bolts bottom anchor plate has allowed reducing the specified concrete grade
- Replacement of circular reinforcement with segmental, rather than changing to a 2 directional perpendicular arrangement. This allowed to maintain reinforcement rates within the tender values.
