Compelo Energy is using cookies

We use them to give you the best experience. If you continue using our website, we'll assume that you are happy to receive all cookies on this website.

ContinueLearn More
Close
Dismiss

Table 2: Details of two main smaller project excavations

Project Dalvatn Slettedalselva
Contractor Veidekke ASA Kruse Smith A/S
Headrace tunnel length inc. pipe trench (m) 1300 (new) 3660
– section (m2) 14.5-25 (depending on alternative) 18.5
Tailrace tunnel length (m) 280 490
– section (m2) 25 18.5
Access tunnels length (m) 310 + 350 615
– section (m2) 30 + 22 31
Transfer tunnels length (m) 1150 + 2910 + 16,270 0
– sections (m2) 22 + 10 +9.6 0
Intake shaft length (m) 880 0
Power station cavern volume (m3) 13,500 6000
Surge shaft length (m) 190 280
– section (m2) 4-52 6.5