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Support for certification
11 November, 2021
Leading hydropower companies and international organisations have declared their support for a new sustainability certification scheme for hydropower
Dam monitoring with fibre optics
12 May, 2014
Jersey Water and Smartec SA have partnered successfully to design, install and commission six deformation fibre optic sensors inside three existing 80mm drain holes within the AAR prone mass concrete dam at Val de la Mare in Jersey.
Karebbe hydro-combine and failsafe spillway
20 August, 2012
PT Vale Indonesia Tbk operates a mining and nickel-smelting operation on the Indonesian island of Sulawesi. The nickel-processing plant is largely powered by hydroelectric generating stations on the Larona River. When the company decided to increase nickel production in 2003, SNC-Lavalin was invited to enter a design competition for a new hydroelectric facility to increase their generation capacity. The successful design benefitted from two interesting features highlighted in this paper: a distinctive hydro-combine powerhouse arrangement; and a unique failsafe spillway arrangement.
Rehabilitation of Waikoloa Reservoir No. 2
22 June, 2012
John P. Ballegeer, Jie Yu, Keith A. Ferguson, and Terrance I. Nago present a study in the lifecycle costs for structural repair of the Waikoloa Reservoir No 2 in the US
Old and new at Waldeck
15 April, 2011
With the liberalisation of the electricity market and the rapid expansion of wind power, increasing use is being made of pumped storage power plants to provide balancing power. This is creating a favourable climate for investment in the preservation of existing and the construction of new plants of this type. Martin Rau from E.ON Wasserkraft explains how the combined refurbishment and rebuild project at Waldeck pumped storage plant in Germany has helped to secure efficient plant operation for another generation
RCC proves its worth
03 October, 2008
Roller compacted concrete (RCC) continues to gain recognition as a competitive material for both construction of new dams and rehabilitation of existing structures. Here IWP&DC provides examples of some recent RCC dam projects in the US
A permanent solution at Salt Springs dam
14 March, 2006
Based on the construction history and experiences from the past performance of Salt Springs dam, concrete repairs made to the dam face have been unable to accommodate continued movement and settlement of the structure. As a result PG&E and its independent board of consultants decided that installation of a flexible membrane over the existing concrete face would more satisfactorily provide the desired leakage control and accommodate any future settlement
Company showcase
25 May, 2004
IWP&DC talked to a few of the companies exhibiting at the British Dam Society’s 13th Biennial conference to discover what they have in store for visitors
RCC record breaker
26 January, 2004
Humberto Santana and Eduardo Castell take a look at the story behind Colombia’s record breaking Miel I dam. Put into operation in 2002, the 188m high structure is currently the tallest RCC dam in the world.
Keeping refurbishment in Czech
16 November, 2001
In readiness for this year's Uprating and Refurbishing Hydro Power Plants VIII conference, we report on some of the hydro projects in the Czech Republic
Tannur dam: Paving the way for RCC in Jordan
16 March, 2001
Chris Wagner gives an update on the Tannur dam in Jordan – one of the first RCC dams to be built in the country and an integral part of the Southern Ghors project
Power for processing
16 June, 2000
When a nickel mine and processing plant were expanded, hydro power was developed to supply the additional energy. The unique characteristics of the location and electricity system load resulted in a project with a low environmental impact
Taking a synthetic approach
12 January, 2000
Synthetic geomembranes are widely used as a means of waterproofing and protecting dams. In recognition of this the International Committee on Large Dams has continued to assess the use of such materials
New plants for old
13 April, 1999
Keeping an eye open to developments in uprating and refurbishment can benefit new facilities as much as old ones. Janet Wood reports
