System split due to the Earthquake in Ecuador

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Mar 19, 2023 20:00 Following the heavy earthquake in the region between Ecuador and Peru on 18 March 2023 there was a system split between Ecuador and Columbia. (Origin of the picture: Sageo, CC3.0)

Load Shedding in South Africa

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Feb 23, 2023 14:12 At the beginning of 2023, the number of references regarging load sheeding in South Africa, also in metropolitan areas such as Johannesburg, Cape Town and Pretoria, in some cases lasting up to 11 hours.

Forecasting Model for the direction of aFRR activation in Germany

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Feb 08, 2022 09:35 The aFRR forecast tool estimates the sign of the average aFRR demand of the current quarter hour. The average aFRR activation of the preceding quarter hour is the basis of the forecast, together with frequency information.

Analysis: the periodic patterns of the network frequency

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Sep 23, 2021 22:00 Imbalances between generation and consumption of electrical energy are visible in real time in the grid frequency. Such imbalances are often market driven and therefore recurrent. An analysis of the periodic components of the grid frequency.

Iberian Peninsula separated from UCTE on 24/07/2021

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Jul 24, 2021 18:10 Separation of the Iberian Peninsula from the European UCTE system. As a result, the grid frequency in Spain drops below 49 Hz! Switching back despite 200 mHz frequency difference!

Frequency Drop in May 2021

Morgre - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19858375
Morgre - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19858375

May 21, 2021 18:57 In May 2021, the frequency dropped to 49.85 Hz on two successive days. This article discusses the reasons and consequences of the two events, the shutdown of a substation and a market-driven effect.