Co-planning of generation and transmission capacity based on portfolio theory

Autor: Wentao Zhang, Zechen Wu, Zece Zhang, Yue Zhang, Xiuli Wang, Cui Qiang
Rok vydání: 2016
Předmět:
Zdroj: 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC).
DOI: 10.1109/appeec.2016.7779601
Popis: Electric sector is confronting with ever increasing challenges. On one hand, due to fossil fuel depletion and environmental pollution problems, generation investment needs to be considered in more volatile and risky context. On the other hand, with augmenting multinational grid interconnection and power exchanges, cross-border transmission and generation investment becomes mutually dependent. In response to these challenges, this paper proposes a generation and transmission capacity co-optimization model on the basis of mean-variance portfolio theory. The model minimizes average generating cost while controlling the risk under a certain level via adjusting proportion of different generation and cross-border transmission facilities. China's portfolio in the year of 2030 is studied. Numerical results indicate that current China's portfolio, principally relied on thermal generation, is exposed to high risk. Diversification of portfolio, larger share of renewable energy and grid interconnection can contribute to risk reduction.
Databáze: OpenAIRE