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High wind leads to historic negative prices in the SEM 12 Jan 2017

In the early hours of Monday, the 9th of December, Ireland saw the first negative EP2 System Marginal Price in 5 years as prices plummeted to -€84.96/MWh for three half hour periods. 

A rapid increase in wind generation, as seen in the graph below coincided with a low demand period stemming from particularly mild weather conditions for this time of the year.  The full availability of both Irish interconnectors, as well as significant exports of wind to GB were still not enough to keep prices in the positive bracket as TSO actions had to be taken to ensure the stability of the system.

Keep an eye out for the next instalment of ElectroRoute Insights as we dig deeper into this event. 

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