A blackout would not only paralyze traffic and households but also massively endanger critical infrastructures such as hospitals, communication, and supply systems.

A blackout would not only paralyze traffic and households but also massively endanger critical infrastructures such as hospitals, communication, and supply systems.
Vienna is considered one of the cities with the highest supply security worldwide. The power grid of Wiener Netze achieves a reliability of 99.99 percent, thus exceeding the European average. Most power outages in Vienna are short and locally limited, often caused by external influences such as storms or construction work. On average, a power outage in the capital lasts about 90 minutes. Due to multiple secured network structures and modern, digitized transformer stations, disruptions can be quickly detected and resolved.
A regular power outage is significantly different from a so-called blackout. While a power outage is usually local and time-limited, a blackout is a large-scale, longer-lasting failure of the power grid – often across national borders. Restoring supply in the event of a blackout can take several days and represents the worst-case scenario for the infrastructure of a major city.
The city of Vienna has been specifically preparing for possible crisis scenarios for years. There are detailed crisis plans for power outages, power shortages, and blackouts. Emergency organizations and critical infrastructure areas regularly practice emergency situations to remain operational in the event of a large-scale power outage. The population is sensitized through information campaigns and checklists for self-protection.
Despite all precautions, a blackout remains an exceptional situation that cannot be completely ruled out. The biggest challenge is to maintain the supply of critical infrastructures such as hospitals, transport, and communication. For households and businesses, the city recommends equipping themselves with emergency supplies and batteries and familiarizing themselves with the official recommendations.
Vienna is excellently protected against power outages and blackouts in international comparison. According to experts, the likelihood of a large-scale blackout is low, yet measures are continuously being taken to be able to react quickly in an emergency. The high supply security is a decisive location advantage and significantly contributes to the quality of life in the capital.
Important Rules of Conduct in an Emergency
These measures help to stay safe and informed in an emergency.
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