Conference Publication Details
Mandatory Fields
Waenn, A. and McKeogh, E. and Leahy, P.
International Water Association World Congress on Water, Climate and Energy
Environmental Performance of Existing Energy Storage Installations
2012
May
Published
1
()
Optional Fields
pumped hydro energy storage; compressed air energy storage; environmental impacts; water framework directive; Intelligent Energy Europe
Dublin

Recent increases in renewable energy (RE) due to EU targets have led to renewed interest in energy storage to help integrate RE into the grid. The EU directive 2009/28/EC states that electricity from renewable sources should be given preference over other sources. Large scale energy storage can help to achieve large scale penetration of wind and other variable renewables. There are two proven energy storage technologies that are also economically viable and achievable on large scale today: pumped hydro energy storage (PHES) and compressed air energy storage (CAES). There are more than 300 PHES schemes operating in the world, whereas there are only two CAES, one in Huntorf, Germany and the other in Alabama, USA.

There are several positive impacts associated with an increased energy storage capacity. The main positive impact is that increased energy storage will improve grid stability. More energy storage facilities also mean less curtailment from wind power. At the same time CO2 is mitigated as the energy storage facilities uses renewable electricity to drive the pumps instead of using other fossil fuels. Furthermore, increased energy storage should make electricity prices less volatile.  Additional advantages of storage include the ability to provide fast reserve and system services such as frequency stabilisation and black start capability.

The EU-funded project stoRE aims to facilitate energy storage in order to allow for higher penetration of intermittent energy. This paper describes a key task which aims to determine the environmental performance of existing energy storage facilities in order to determine international best practice and to remove environmental barriers to implem
Intelligent Energy Europe
Grant Details