Canals, Tunnels & Penstocks

Considerations in the design, construction, maintenance and repair of cannels, tunnels and penstocks associated with hydroelectric projects.

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Latest Canals, Tunnels & Penstocks News

Rehabilitating a Buckled Penstock Using CFRP


Buckling of the steel liner of the penstock supplying the 4.6-MW Brian J. Gallagher Generating Station in Canada resulted in a 50% decrease in power output. The problem was repaired using carbon fiber-reinforced polymer.

Hungry Horse Hydropower Plant

U.S. seeks flowmeters for four penstocks at 428-MW Hungry Horse hydro project


The Bureau of Reclamation seeks bids to supply four ultrasonic flowmeter systems at the 428-MW Hungry Horse Dam hydropower project in Montana.

1-MW Merk hydroelectric scheme

A combined US$11.1 million will finance two small hydroelectric projects in the Scottish Highlands


CRF Hydro Power Ltd., a Scottish hydro developer and operator, has completed negotiations with Clydesdale Bank Plc. to receive US$5.83 million to rehabilitate and upgrade the Garbhaig small hydroelectric project from 915 kW to 2 MW. The scheme is located in a rural area on Loch [Lake] Garbhaig in the Scottish Highlands in the Wester Ross area.  

Lesotho seeks bids to develop Polihali Dam; hydro project studied


The Lesotho Highlands Development Authority invites proposals to implement several portions of Phase 2 of the Lesotho Highlands Water Project (LHWP), including construction of Polihali Dam and a water transfer tunnel.

Jordan seeks pipeline, small hydro plant at Khaw Reservoir


The Water Authority of Jordan (WAJ) invites applications for pre-qualification to design and build a water pipeline, pumping facilities and a small hydropower project at Khaw Reservoir in Jordan.

Tunnel flood kills three at Vietnam's 38-MW Thuan Hoa hydropower plant


Three Chinese workers were killed and another injured this past week when water flooded a tunnel at Vietnam's 38-MW Thuan Hoa hydroelectric plant, local sources report.

U.S. seeks penstock flowmeter replacement at eight hydro projects


The Bureau of Reclamation seeks bids to replace penstock flowmeters at eight hydroelectric projects in its northern and central California areas.

Small hydro development in Colorado

Colorado receives $1.8 million to advance agricultural hydropower project development


A $1.8 million grant from the U.S. Department of Agriculture should help the Colorado Department of Agriculture support development of agricultural hydropower projects in the state, according to a press release from the Colorado Small Hydro Association.

WAPDA head urges timely completion of Tarbela hydropower plant extension


The chairman of Pakistan's Water and Power Development Authority (WAPDA) ordered authorities to ensure the on-schedule completion of the 1,410-MW Tarbela 4 hydropower plant extension during a site visit this week.

FERC refuses to extend PG&E permit to study up to 1,200-MW Mokelumne Pumped-Storage


The Federal Energy Regulatory Commission has rejected a request by Pacific Gas & Electric Co. to extend by two years the utility's second preliminary permit to study development of a 300- to 1,200-MW Mokelumne Pumped-Storage project in California's Amador and Calaveras counties.

Proposed 1000-MW Lipno-Aschach pumped-storage hydroelectric development

EU report listing US$1.6 trillion investment opportunities may spur hydropower development


A European Union (EU) report released Dec. 9, lists about €1.3 trillion (US$1.6 trillion) of potential investments across Europe that could “kick-start” ambitious plans for infrastructure development. One of the potential investments could result in an enormous pumped-storage hydro project for the Czech Republic and Austria. However, a non-governmental organization opposes the proposed 1000-MW hydropower development. 

At least 13 killed by collapse at Ecuador's Coca Codo Sinclair hydropower plant


At least 13 people are dead and a dozen injured following the collapse of a pressure well at Ecuador's 1,500-MW Coca Codo Sinclair hydropower project.

Penstock and structures webinar by Fibrwrap

Attend a free webinar on rehabilitation of penstocks and structures vs. replacement


Fibrwrap is hosting a free webinar, in conjunction with, on Tuesday, Dec. 2 at 12 pm central time.

Minnesota's 71-MW Thomson hydropower plant back on line after two-year rehab


Minnesota Power's 71-MW Thomson hydropower plant is generating energy for the first time since being knocked out of service by record flooding more than two years ago.

WEST Consultants wins contract for dam and civil structure analysis


The Corps of Engineers has awarded Oregon-based water resources advisory group WEST Consultants Inc. a US$4.9 million contract for work in its entire Northwest Division.

BC Hydro extends call for engineering of dams, spillways, penstocks


Canadian utility BC Hydro has extended the deadline for proposals from engineering consulting firms to engineer water retention and conveyance structures over at least seven years for the hydropower utility.

BC Hydro upgrades canal, replaces switchgear at two hydro projects


BC Hydro crews have drained Kootenay Canal in order to upgrade the canal lining at the 572.2-MW Kootenay Canal hydroelectric project in British Columbia. 

Austria utility completes rehabilitation of 12.62-MW Opponitz hydropower project


Vienna utility Wien Energie GmbH has completed rehabilitation of the 90-year-old, 12.62-MW Opponitz hydroelectric project on Austria's Ybbs River.

Developer extends construction bidding for 38.12 Mati hydro complex in Albania


Austria hydropower developer Enso Hydro has extended the deadline for bids to construct the three-plant, 38.12-MW Mati hydropower complex on the Mati River in Albania.

Bosnia names seven pre-qualifiers for construction of 20-MW Vranduk hydropower project


Utility Elektroprivreda of Bosnia and Herzegovina has pre-qualified seven groups to bid for construction of the 20-MW Vranduk hydroelectric project in Bosnia and Herzegovina.

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