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Issue 07/2017

Expanded pumped storage power station goes into service

IEC experts, e-tech, visit new Veytaux pumped storage plant

Electricity is consumed predominantly as it is produced. Electricity generation relies increasingly on new renewable energy (RE) sources, mainly sun and wind. These are intermittent and not always available when needed, so electrical energy storage (EES) becomes essential in integrating them successfully into the energy mix. Pumped storage is by far the largest-capacity form of EES available, representing around 95% of the total available globally, according to the US Department of Energy Global Energy Storage Database

Issue 07/2017

Reduced scale model testing for hydropower projects

New and refurbished hydropower projects require extensive testing

Hydropower projects are usually very large, designed to last for decades and then to be refurbished. Owing to the huge costs involved and the need to achieve the best possible results and efficiency, extensive testing of hydropower performance is required, although the sheer size of these projects precludes testing at full scale. An independent facility from EPFL, the Swiss Federal Institute of Technology in Lausanne carries out reduced scale tests of hydraulic machinery from all over the world, based on IEC industry standards.

Issue 07/2017

Flexible hydro operation for lean integration of new renewables

Hydropower helps incorporate the growing share of intermittent renewable sources into the energy mix

In 2015, global generation of electricity was 24 255 TWh. Hydropower accounted for around 16% of the total, making it the main renewable energy (RE) source for electricity generation. It will also play a key role in the future integration of power generated by new RE sources and in balancing its impact on the grid.