TY - JOUR
T1 - The role of fast-acting energy storage for contingency grid support in the transmission planning
AU - Gacitúa, Leonardo
AU - Olivares, Daniel
AU - Negrete-Pincetic, Matías
AU - Lorca, Álvaro
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/11/15
Y1 - 2023/11/15
N2 - This paper investigates the role of fast-acting energy storage systems in transmission expansion planning, by allowing higher transfers through the network during normal operation. This is achieved by considering the ability of energy storage systems to provide real and reactive power reserves after forced single-circuit outages to prevent line overloading and voltage level violations in post-contingency states, and by applying the corrective N−1 security criterion. A computational tool is presented to solve the multi-year transmission expansion problem with multiple scenarios of availability of renewable energy sources. The model is solved using the FICO Xpress software. The 2022–2037 Chilean transmission expansion plan is used as a case study, given the high need for flexibility to integrate 29.5 GW of new solar and wind generation capacity several hundred kilometers from its load center, with a system peak demand of 16.5 GW. The results obtained show that fast-acting energy storage systems reduce the cost of the investment plan by USD 712 million (-18%) mainly because it requires 5 GWh less of conventional storage capacity (-19%), allowing the system operator to increase the usage of the existing transmission network, and providing the central planner with a deferral option for the construction of new transmission lines.
AB - This paper investigates the role of fast-acting energy storage systems in transmission expansion planning, by allowing higher transfers through the network during normal operation. This is achieved by considering the ability of energy storage systems to provide real and reactive power reserves after forced single-circuit outages to prevent line overloading and voltage level violations in post-contingency states, and by applying the corrective N−1 security criterion. A computational tool is presented to solve the multi-year transmission expansion problem with multiple scenarios of availability of renewable energy sources. The model is solved using the FICO Xpress software. The 2022–2037 Chilean transmission expansion plan is used as a case study, given the high need for flexibility to integrate 29.5 GW of new solar and wind generation capacity several hundred kilometers from its load center, with a system peak demand of 16.5 GW. The results obtained show that fast-acting energy storage systems reduce the cost of the investment plan by USD 712 million (-18%) mainly because it requires 5 GWh less of conventional storage capacity (-19%), allowing the system operator to increase the usage of the existing transmission network, and providing the central planner with a deferral option for the construction of new transmission lines.
KW - Fast-acting energy storage systems
KW - Post-contingency grid support
KW - Transmission network expansion planning
UR - http://www.scopus.com/inward/record.url?scp=85166219483&partnerID=8YFLogxK
U2 - 10.1016/j.energy.2023.128465
DO - 10.1016/j.energy.2023.128465
M3 - Article
AN - SCOPUS:85166219483
SN - 0360-5442
VL - 283
JO - Energy
JF - Energy
M1 - 128465
ER -
