Publication

Small hydropower storage and pump-storage schemes for decentralised energy supply

Nicolas Crettenand
2011
Conference Papers

Abstract

This paper aims to explore the technical and institutional feasibility of small hydropower storage and pump-storage schemes in Switzerland. Within the European and Swiss context of the facilitation of renewable energy technologies, whereby solar and wind power are intermittent options, additional energy storage capacities are required to adjust the electricity production with the demand. Hydropower pump-storage schemes remain the most efficient and profitable option to “store” electricity. In Switzerland today, most of the big scale hydropower potential is exploited however The potential of small hydropower (

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https://infoscience.epfl.ch/entities/publication/cf9465ad-ccb0-4975-9ffe-6b363a81bc6c

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Nicolas Crettenand
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cf9465ad-ccb0-4975-9ffe-6b363a81bc6c

About this result

Related concepts (29)

Pumped-storage hydroelectricity

Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power.

Energy storage

Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms.

Grid energy storage

Grid energy storage (also called large-scale energy storage) is a collection of methods used for energy storage on a large scale within an electrical power grid. Electrical energy is stored during times when electricity is plentiful and inexpensive (especially from intermittent power sources such as renewable electricity from wind power, tidal power and solar power) or when demand is low, and later returned to the grid when demand is high, and electricity prices tend to be higher.

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