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Date 2000
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Prevention is better than a cure
14 December, 2000
By monitoring the air gap at Igarapava hydro power plant in Brazil, major damage and costly outages were avoided on a new hydro generator

On track for partial discharge testing
14 December, 2000
A partial discharge (PD) measurement instrument has been developed to make online PD tests and the resulting data interpretation easier, as Blake Lloyd explains

Spotlight on...Spillway Gates
14 December, 2000
Spillway gate installations are a critical part of a reservoir and dam system. Their reliability is important for the safety of dams. Jack Lewin and Jonathan Hinks explain why spillway gate design, maintenance and operation require close attention

Concentrating on Cuban hydro potential
14 December, 2000
Raúl Oladle Font and Idielin Martinez Yon give a brief overview of small hydro power in Cuba and emphasise the potential for future development

Control and Protection from the base
14 December, 2000
A fully integrated control and protection system has been specifically developed for the small hydro market

Jet propelled developments
14 December, 2000
Increasing the specific speed of impulse turbines without losing their inherent advantages of simplicity, efficiency and tolerance is commercially attractive in the modern hydro power world. The full admission axial impulse turbine demonstrates such characteristics and, on the basis of current research, may become a useful alternative to traditional turbine designs for small scale sites. Simon Lucas and John Burton give more details

The Austrian Experience
14 December, 2000
Creating a system of tradeable certificates may be a step in the right direction for the promotion of small hydro power and other renewable resources. Bernhard Pelikan takes a closer look at the situation in Austria

The tide turns for marine current turbines
14 December, 2000
Marine currents offer the possibility of generating power at low costs and on a grand scale. Peter Fraenkel reports on the technology needed to get the best from this predictable energy resource

Pushed to the limit
14 December, 2000

Riding the ocean waves
14 December, 2000
Richard Yemm explains how a ‘sea snake’ could soon lead the way in commercial, offshore wave energy production

Placing Risks in perspective
14 December, 2000
Should dams be modified for the probable maximum flood? If benefit-cost ratios, construction accidents and increased occurrence of annual downstream flood losses are taken into consideration, the answer may well be no

India’s NHPC celebrates… Twenty-five years on
14 December, 2000
I M Sahai traces the fortunes of the National Hydroelectric Power Corporation over the past 25 years

Wake-up call
14 December, 2000
The European Commission’s ALTENER programme is attempting to raise community awareness about the use of renewables. Gemma Newman reports

Laying down the law for hydro power
14 December, 2000
What does the future hold for hydro power? Using examples from the UK and the European Union, Mark Raymont and Peter Cassidy assess the effects of energy policy on the development of hydroelectric schemes

The hydro digest
14 December, 2000
The Digest analysis and diagnostics system was originally developed for use in thermal power plants but was modified for hydro power plants to meet special technological requirements of hydroelectric operations. Hermann Scheil reports

Will rare Tanzanian toad stall hydro operations?
14 December, 2000
An ecologically sensitive situation is unfolding in Tanzania. Suzanne Pritchard explains why hydroelectric operations at Kihansi power station may be compromised by a rare toad

A milestone… or a millstone
14 December, 2000
No matter how much you think you know about dams, you cannot read the World Commission on Dams’ final report and keep your assumptions intact. This is the belief of the WCD chairman. But will the Commission’s report be a milestone for dams or a millstone around the industry’s neck? Suzanne Pritchard reports

Decommissioning
14 December, 2000
The removal of Edwards dam on the Kennebec river in Maine, US, may have far-reaching implications on how we view the permanence of dams, the concept of public interest and the notion of private property. Fred Ayer offers a personal view and explores these subjects with other protagonists in a post-mortem of the case

Japan expands Okutadami and Otori
14 November, 2000

Tunnelling in the Alps
14 November, 2000



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