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Making a case for sedimentation
29 June, 2012
According to the International Sediment Initiative (ISI), sedimentation issues are often ignored because the scale of the problem can seem too overwhelming. Recent research by ISI is working towards creating a holistic approach to the remediation and conservation of surface waters, with the management of dams and reservoirs playing a key part. Suzanne Pritchard takes a closer look at ISI’s recent interim case study report.

Seismic aspects of underground structures
22 June, 2012
Dr Martin Wieland discusses the seismic design and performance criteria of underground structures of hydropower plants in a qualitative way on the basis of the seismic safety criteria applicable to large dams, approved by the International Commission on Large Dams (ICOLD).

Downgrading hydro’s dirty image
22 June, 2012
An international team of scientists claims to have amassed the largest data set to date on greenhouse gas emissions from hydroelectric reservoirs. While their analysis has downgraded the GHG impact of such reservoirs, importance has also been placed on the role that site design and location can play in minimising carbon dioxide and methane emissions.