The Búðarháls Hydroelectric Power Station is located near the junction of the two rivers: Þjórsá and Tungnaá, at 64, 24’ north, harnessing the Tungnaá river. The project is now in the design and tendering phase and planned commissioning is in late 2011.

Technical data:
Client: The National Power Company – Landsvirkjun
Installed capacity: 80 MW
Turbines: 2 Kaplan units, vertical axis
Gross head: 40 m
Harnessed discharge: 240 m3/s
Annual energy production: 585 GWh
Sporðalda dam: Total length 2,300 m
Water reservoir: Sporðalda reservoir, 337 m.a.s.l, storage capacity of 335
million m3
Headrace tunnel: Width/height: 11/15 m; length 4 km
Pressure shaft: 2 sloped pressure shafts, ø5.6 m; length 60 m
Tailrace canal: 400 m
Powerhouse L/W/H: 55/23/28 m

Mannvit services:

Feasibility study and pre-design:

• Geology
• hydraulic
• civil
• mechanical
• electrical
• design memorandum 

Penstock and gate equipment:

• Tender design and tender documents
• Participation in evaluation of tenders and procurement
• Review of detail design.