@conference { , title = {Economic analysis of battery electric storage systems operating in electricity markets}, year = {2015}, month = {19-22/05/2015}, type = {contributed presentation}, address = {Lisbon, Portugal}, abstract = {Battery electric storage systems (BESS) in the range of 1-10 MWh is a key technology allowing a more efficient operation of small electricity market producer. The aim of this work is to assess the economic viability of Li-ion based BESS systems for small electricity producers. The results of the ex-post economic analysis performed with real data from the Iberian Electricity Market shows the economic viability of a Li-ion based BESS thanks to the optimal operation in day-ahead and ancillary electricity markets.}, keywords = {research; MTM2013-48462-C2-1; battery electricity storage systems; electricity markets; day-ahead market; secondary reserve market; SAS/OR; wind power plants; energy economy; virtual power plant}, URL = {http://www.eem15.com/}, author = {F.-Javier Heredia and Jordi Riera and Montserrat Mata and Joan Escuer and Jordi Romeu} }