Iceland – Construction work – SIG10 - Sigalda Extension HEP - Civil Works

Landsvirkjun hereby invites tenders for Works consisting of the construction of the powerhouse extension, excavation and concrete embedment of penstock from the powerhouse to the opening of the concrete duct in the existing dam, extending existing powerhouse systems such as crane rails and power feed, low voltage power supply, communication, CCTV, fire safety, security and access management, water supply, drainage, ventilation and heating to the powerhouse extension (including other auxiliaries as applicable). Contract SIG10 includes the construction and removal of a cofferdam in the tailrace canal, widening of the tailrace canal to accommodate added discharge as well as pertinent slope protection along the tailrace canal. Contract SIG10 includes some refurbishment works in the existing powerhouse and tailrace canal. Contract SIG10 includes furnishing of concrete to the Employer for the purpose of embedding the penstock in the concrete duct in the existing intake dam, the execution of which is included in Contract SIG33. Further information about the project and scope of Works can be found in Tender Documents no. 2025-51.