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Rising tide of optimism for tidal power
01 March, 2007
Tidal energy capacity in the US and Canada may account for less than 5% of the world’s potential, but 20GW is prize enough for a group of sea power pioneers investing in a renewable alternative to fossil fuels. Chris Webb finds that, regulatory matters aside, energy from the oceans is beginning to make its mark

A trip to Xiangjiaba
12 February, 2007
China is heading up the Jinsha river with a project to rival Three Gorges. Peter O'Neill tests the local waters and analyses for silt, seismics, salamanders and salubrious spas

Back to School - refurbishment work in the US
18 September, 2006
This August saw the beginning of a US$1.4M improvement project at the School Street hydro power facility in New York state, US. Several of the enhancements that are currently underway are beyond the improvements the owner planned as part of its Federal Energy Regulatory Commission (FERC) license renewal, and take into account the historic significance of the facility, and its contribution to the city of Cohoes

Seoul leads tidal breakthrough
12 September, 2006
Development of the 254MW Sihwa tidal power plant in South Korea could lead to further advances in tidal power technology, says Neil Ford

Mexico
01 June, 2006
Mexico, in Central America, has an area of approximately 2Mkm2 and, according to a July 2005 estimation, a population of 1.06M (CIA Facts). The total electricity generated by Mexico in 2002 was 215,158GWh, broken down as: coal - 26,098GWh; oil - 79,314GWh; gas - 69,132GWh; biomass - 470GWh; nuclear - 9747GWh; hydro - 24,951GWh; geothermal 5,398GWh; solar 32GWh; and 16GWh from other sources. (IEA Energy Statistics).

Canada
31 May, 2006
The very geography of Canada has led to the Canadian energy industry’s expertise in the generation and transmission of electricity, in particular hydroelectric power. The paradox of Canada’s vast geography is that it poses an energy supply problem to the 32 million people scattered over 10Mkm2, while at the same time offering a solution to the energy demands of its inhabitants. One of the least densely populated countries in the world, with a rigorous climate and large distances between population centres, Canada has been graced with water, whether falling or running or still water, and thus water-based power ready to meet Canada’s relatively high per capita energy use.

Safety research - new tools for dam analysis
16 November, 2005
Yoshihisa Uchita, Hiroaki Noguchi and Victor E. Saouma share their experiences of identifying the state of the art in seismic dam safety, and report on the development of a computational tool to effectively analyse dams, from the simplest through to the most complex structures

Working around a relicence
12 October, 2005
As part of the FERC relicencing process, hydraulic design changes were necessary at the Salt Springs dam in California, US. Michael C Johnson, James E Pearman and Rod Lubben report on the results of a physical hydraulic model study to find an acceptable fixed cone diversion valve and stationary hood combination for use at the project

Talking hydro
19 August, 2005
Since its inception in 1994, the International Centre for Hydropower has helped promote the development and utilisation of hydro throughout the world. Line Fjellvær talks to IWPDC about the organisation’s future objectives and aims

Environmentally Sound?
20 May, 2005
A state-owned power company, key marine scientists and stakeholders have recently agreed to implement an adaptive management programme for Manapouri, New Zealand’s largest hydro power station

Prevention is better than a cure
21 April, 2004
Peter U Volkart and Frank Jacobs report on the results obtained following a broad and comprehensive study on abrasion of concrete hydraulic structures in alpine regions of Switzerland

The Soviet after-shock
04 September, 2002
Former Soviet states, such as Tajikistan, are having to overhaul their hydroelectric plants in order to keep up with power demands. David Hayes reports

Small hydro showcase
04 August, 2002
Organised by the European Small Hydro Association, the Hidroenergia 2002 conference brought together specialists in the field of small hydro power from all over the world to discuss ways to reach the Kyoto commitments and deal with the challenges and opportunities for small hydro in the future. Carrieann Davies reports

Stepping up security
02 March, 2002
The reality of a terrorist attack in New York drastically altered attitudes about the security of dams in the US. Suzanne Pritchard reports on the latest development to help dam owners carry out risk assessments of their hydro facilities

The power of Hutiaoxia
01 February, 2002
The Hutiaoxia hydroelectric project on the Jinshajiang river in China will play an important role in the transfer of electricity across China, as Zenghai Zhao reports

A slippery subject
15 May, 2001
Concern is growing about the fate of the American eel. It is still not clear what is causing the apparent decline of this species or what can be done to reverse the trend. Gemma Newman reports

Protecting eels: a new challenge for US hydro power operators
16 June, 2000
Doug A Dixon explains why the American eel is becoming a new consideration for US hydro power

Fighting for recognition
16 June, 2000
Hydro power is still battling to be recognised as a renewable energy resource in the US. Suzanne Moxon explains how decommissioning and an increasing regulatory burden are contributing to the uphill struggle

A growing problem
11 May, 2000
Douglas A Dixon from EPRI gives an insight into the nature and severity of sedimentation problems at US hydro power facilities

The Achilles ‘eel’ of fish passage
15 March, 2000



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