Rehabilitation & Repair

Rehabilitation and upgrading of existing hydro plants is vital to ensure the continued reliable operation of these valuable assets, in addition to increasing global hydroelectric generating capacity.

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Latest Rehabilitation & Repair News

Kyrgyzstan seeks electrical components to refurbish 1,200-MW Toktogul hydro project


Kyrgyzstan utility Electric Power Plants (EPP) seeks bids to replace electrical components, auxiliaries, and instrumentation as part of refurbishment of the 1,200-MW Toktogul hydroelectric project on Kyrgyzstan's Naryn River.

Reclamation awards contract for Grand Coulee Dam concrete work, rehabilitations


The U.S. Bureau of Reclamation has awarded a US$886,654 contract to Abriss Corp., Inc. to construct a transformer containment basin for the Third Power Plant at the 6,809-MW Grand Coulee Dam.

BC Hydro to seek cooling water piping for 180-MW Bridge River 1


Canadian utility BC Hydro invites expressions of interest in replacing cooling water piping for four generating units of the 180-MW Bridge River 1 hydroelectric project in British Columbia.

U.S. extends transformer bidding for 1,312-MW Glen Canyon Dam


The Western Area Power Authority has extended the deadline for bids to supply a transformer for 1,312-MW Glen Canyon Dam on the Colorado River.

ADB to support rehabilitation of Tajikistan's 240-MW Golovnaya hydropower project


The Asian Development Bank (ADB) has reportedly signed a memorandum of understanding with the Tajik government to help finance a rehabilitation of the 240-MW Golovnaya hydropower plant.

U.S. seeks firms for operation, maintenance of new spillway at 198.72-MW Folsom Dam


The U.S. Army Corps of Engineers seeks information on firms able to perform operation and maintenance of a new auxiliary spillway being constructed at 198.72-MW Folsom Dam on California's American River.

U.S. again extends bidding to refurbish transformers at 1,076.6-MW Bonneville Dam


The U.S. Army Corps of Engineers again extended the deadline for bids to refurbish generator step-up transformers at the Second Powerhouse of 1,076.6-MW Bonneville Lock and Dam in Oregon and Washington.

ERC approves SNAP-Benguet's 125.8-MW Binga hydropower project upgrades


The Philippines' Energy Regulatory Commission (ERC) has granted a certificate of compliance to SN Aboitiz Power-Benguet for the operation of all four turbine units at the 125.8-MW Binga hydropower plant.

India extends bidding for modernization of 690-MW Salal hydro project


India's NHPC Ltd. seeks bids for renovation and modernization of the 690-MW Salal hydroelectric project in Jammu & Kashmir State.

U.S. seeks bids to replace switchgear, electrical equipment at 428-MW Hungry Horse Dam


The Bureau of Reclamation seeks bids to replace switchgear and related electrical equipment at the 428-MW Hungry Horse hydroelectric project in Montana.

U.S. seeks transformer for Great Lakes' Soo Locks complex


The U.S. Army Corps of Engineers seeks bids to supply a step-up transformer at Soo Locks, the navigation link between Lake Superior and the lower Great Lakes as well as the location of three hydroelectric plants.

Poland utility seeks stator cooling systems for 160-MW Wloclawek hydro project


Polish utility Energa Hydro Sp. z o.o. seeks bids to supply stator water cooling systems for the 160.2-MW Wloclawek hydroelectric project on Poland's Vistula River.

U.S. seeks wire rope, load testing for intake crane at 2,160-MW John Day Dam


The U.S. Army Corps of Engineers seeks bids to replace wire rope and perform load testing for an emergency intake crane at 2,160-MW John Day Dam on the Columbia River in Oregon.

Seven submit bids for Agus 6 hydro turbine upgrade project


State-operated utility Power Sector Assets and Liabilities Management Corporation (Psalm) has announced seven companies have bid to upgrade units at the Philippines' 200-MW Agus 6 hydropower plant.

Dam Safety & Security


Isabella Dam undamaged after earthquake

The Leading Edge


Lucid Energy honored for environmental sustainability

Sticky Wickets: Repairing Failed Stator Core Bolts at Thompson Falls


A routine inspection of Unit 7 at PPL Montana's Thompson Falls facility revealed a broken stator core bolt.

Using Distributed Sensing for Generator Condition Monitoring


A new technology based on extended cavity sensors and optical fiber could be used to provide distributed sensing of vibration in the stator of hydroelectric generators.

Rehabs Squeeze More Power from Existing Plants


The rehabilitation work under way at three existing hydroelectric plants in the U.S. provides a good example of what work is being performed and the benefits that can be expected from this type of activity.

Sinkholes and Seepage: Embankment Repair at Hat Creek 1


When a sinkhole caused a seepage issue at the Hat Creek No. 1 forebay, a geotechnical investigation and a unique engineering solution were required to design and construct a solution to the problem that would prevent future sinkholes and seepage.

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