Grid Integration and Energy Storage
Strategies for integrating variable renewable electricity into power grids while maintaining frequency/voltage stability.
Formula
Grid Frequency Deviation = Load − Generation
Real World
The UK's National Grid used the 'Hornsdale Power Reserve' battery system in South Australia — owned by Tesla — as a case study; it responded to a coal plant failure in 140 milliseconds, demonstrating how grid-scale batteries can replace traditional fossil fuel frequency response.
Exam Focus
For 'suggest' or 'discuss' questions on grid integration, mention at least two distinct solutions (e.g. storage AND interconnectors) to access full marks.
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