ELFT HÍRADÓ

[Horváth Zsolt Endre <horvath.zsolt.endre AT ek.hun-ren.hu>]

Kedves Kollégák!


2026 január 21-én, szerdán 11 órakor kerül sor a KFKI 26. épület, 1 
emeleti tanácsteremben


Hartmann Bálint és Michelle T. Cirunay (HUN-REN EK)

előadására


"Interplay between network topology and vulnerability: how long-term 
lock-in effects determine power grid reliability"


címmel.

Abstract:
This talk examines how the long-term evolution of power grid topology 
shapes present-day vulnerability and reliability. Empirical studies 
across transmission and distribution networks show that grid expansion 
follows path-dependent dynamics, where early design choices create 
structural “lock-in” effects that persist for decades. Key topological 
features, such as degree distributions, loop densities, and motif 
structures, remain remarkably stable over time, constraining how 
efficiently grids can adapt to new operational or resilience demands. 
Comparative analyses reveal that networks with greater redundancy and 
slower degree decay are more robust to random failures, while 
hub-dominated or sparsely connected topologies are particularly 
vulnerable to targeted disruptions. The inclusion or exclusion of 
specific voltage layers further alters assessed vulnerability, 
underscoring the interplay between real structure and modeling 
assumptions. Overall, the results highlight that power grid reliability 
is not only a matter of current operation but is deeply rooted in 
historical network development and long-term structural lock-in.

Minden érdeklődőt szívesen látunk!

Horváth Zsolt Endre
Szeminárium koordinátor


Dr. Zsolt E. HORVÁTH
Institute for Technical Physics and Materials Science,
Centre for Energy Research
(EK MFA)
Konkoly Thege Rd. 29-33, 1121 Budapest,
Mail: P.O.Box 49, H-1525 Budapest, Hungary
Phone: +36-1-392-2680, Fax: +36-1-392-2226
e-mail:horvath.zsolt.endre AT ek.hun-ren.hu