US EditionSpain’s Grid Warns Power Supply at Risk After Swings in Voltage
Temporary rule changes approved to reduce blackout risks amid voltage swings linked to renewable energy fluctuations, with 90% compliance now required for voltage-control checks.
- On October 28, Red Eléctrica warned of abrupt voltage variations across Spain's power network in the past two weeks that may impact security of supply, marking six months since April's major blackout.
- Red Eléctrica told the CNMC the problem stems from sudden programme changes in renewable generation and slow response times of units providing dynamic voltage control, causing oscillations that can trigger automatic disconnections and destabilise the system.
- 90% of voltage readings must now be within limits, with sampling raised to 60 values per period as the CNMC approved temporary amendments to procedures 3.1, 3.2, 7.2 and 7.4, Red Eléctrica said.
- Under the new rules, generators in balancing markets must keep full reserve and not reduce it in intraday trading, with the 30-day temporary regime starting the day after BOE publication and a possible 15-day extension.
- In parallel, Redeia and the Ministry for Ecological Transition asked for a five-day public hearing to fast-track stabilisation steps, while the European Commission and European Central Bank urged households and businesses in Spain to prepare emergency kits and cash.
43 Articles
43 Articles
Spain’s Grid Warns Power Supply at Risk After Swings in Voltage
Spain’s grid operator has requested urgent changes to how it operates after observing sudden shifts in voltage that could impact the security of the power supply, less than six months after the country suffered the most severe blackout in Europe in decades.
The power grid operator from Spain, REE, announced that in the last two weeks he has detected a strong flow of tension in the system that could affect food with electricity in the country — one that...
Red Eléctrica, a subsidiary of the Redeia group, has notified the Ministry of Ecological Transition and the National Commission of Markets and Competition (CNMC) of recent "brusque" variations of the tension in the Spanish peninsular electrical system after the blackout of 28 April, "although within the limits established, even with a large number of connected conventional groups", has reported the department headed by Sara Aagesen. Consequently…
Net Electric Network warns that recorded variations, although they are within the pattern, "may cause consumption and production cuts that just destabilise the electrical system"
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