Recent blackouts in US and continental Europe: is liberalisation to blame?

摘要: The paper starts with a detailed technical overview of recent blackouts in the US, Sweden/Denmark and Italy order to analyse common threads lessons be learnt. have exposed number challenges facing utilities worldwide. Increased liberalisation electricity supply industry has resulted significant increase inter-area (or cross-border) trades which often are not properly accounted for when assessing system security. traditional decentralised way operating systems by TSOs, each TSO looking after its own control area little information exchange, inadequate slow response contingencies. A new mode coordinated operation real-time security assessment is needed maintain This requires overcoming organisational, psychological, legal but alternative either risk another blackout or run interconnected very conservatively, maintaining large margin at high cost everyone. also includes appendices explaining engineering power concepts non-engineering audience.