Abstract
Abstract Optimal power flow modelling of large and complex power transmission networks is an essential tool for investors and policy makers for the development of energy technologies, security, trade, and policy-making. However, an analysis of a country׳s power system can be impeded by scarcity of operational information. This paper presents an integrated approach of geographically indexed production, demand and grid modelling for large-area power systems. This approach is validated through the accurate identification of transmission lines in Switzerland that have been earmarked for improvement. Furthermore, methods are developed to account for variance in the loading of transmission lines, and physical models are used to accurately model wind-generated electricity. A scenario for the development of wind power in Switzerland is analyzed and it is shown that in prospective regions of wind power development Switzerland׳s grid is capable in its current state of providing congestion-free dispatch.
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