Tarraleah Drilling Stage 4 Geotechnical Investigations Drilling Services
Tender Overview
About this tender
Overview Hydro Tasmania is seeking a contractor to provide drilling services for the Tarraleah Drilling Stage 4 geotechnical investigations. About The Tarraleah hydropower scheme is in the Upper Derwent in Southern Tasmania. Water from its headwater storage in Lake King William is transferred via two conveyances to the Tarraleah Power Station. The Tarraleah hydropower scheme has been generating clean energy for more than 85 years and plays an important role in Tasmania's energy system, generating 7.3% of Tasmania's energy every year. Its ageing condition presents growing risks to reliability, operational performance and long-term resilience, and it requires significant investment to facilitate continued safe and reliable operation. Hydro Tasmania is proposing a full redevelopment of the existing scheme to deliver a modern, efficient and flexible generation asset capable of supporting Tasmania's future energy needs and providing the flexibility to adapt to changing national market conditions. A full redevelopment would replace ageing infrastructure with a new power station and pressurised water conveyance system. The conveyance would connect to a tunnel and intake excavation adjacent to Lake King William that Hydro Tasmania has recently completed. Hydro Tasmania has released a Request for Proposal for the Tarraleah Redevelopment Project and is currently in discussions with potential EPC contractors. Subject to approval, the next stage of procurement will be the Early Contractor Involvement (ECI) phase. Purpose The geotechnical drilling proposed in this specification is required to inform the ECI contractor's pricing and design. Scope Provision of drilling services for the Tarraleah Drilling Stage 4 geotechnical investigations
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