SCOPE OF THE WORK

Recoating the interior of the 10′ diameter penstock using fully automated technology. This is a 3-stage process involving high pressure washing, abrasive blasting and relining of the penstock. Access is gained through cutting in temporary access hatches and welding back on completion of the relining.

Work also includes the relining of the scroll case interior and the exterior of the turbine inlet valve. Structural repairs to the existing concrete and steel penstock supports is also to be completed.

Work will be completed over a 4-month period with reservoir levels monitored and pumped down as needed. Work also includes cleaning of the stator as park of the generator upgrade project happening concurrently.