Power cut in Schleswig-Holstein: 40,000 households affected, extensive damage
By Rachel · 5 min read
Automatically translated from German. · Read original
A widespread power cut on Sunday, 20 October 2026, affected around 40,000 households in five districts of Schleswig-Holstein, causing considerable damage to property. The fault, triggered by a fault in the high-voltage grid, led to power surges that could have the same effect as a lightning strike.
Key facts at a glance
- On Sunday, 20 October 2026, around 40,000 households in the districts of Nordfriesland, Dithmarschen, Rendsburg-Eckernförde, Schleswig-Flensburg and Steinburg were affected by a widespread power cut.
- A short circuit in the 110,000-volt high-voltage grid led to a power surge, causing damage to domestic electrical systems and appliances.
- In Bunsoh (Dithmarschen district), a fire in a thatched-roof house caused damage amounting to around 500,000 euros, which is linked to the power fluctuations.
- Under the Product Liability Act, those affected are entitled to compensation from the network operator, but must pay an excess of 500 euros.
- It is important to report any damage immediately to the network operator and your insurance company, take photographs and keep any faulty appliances.
The power cut in Schleswig-Holstein last Sunday, 20 October 2026, has far-reaching consequences. Burning domestic electrical systems, broken washing machines and smoking sockets are just some of the reported incidents of damage. The network operator SH Netz confirmed that a short circuit in the 110,000-volt high-voltage grid led to a power surge, which can have the same effect as a lightning strike on power lines, as reported by NDR on 21 October 2026.
What caused the power cut and the overvoltage?
The disruption was triggered by a fault in the 110,000-volt high-voltage grid, which caused several substations to shut down. SH Netz is still working to identify the exact cause of the overvoltage, with a team comprising IT and network operations staff analysing 10,000 lines of measurement data, according to the NDR. A power surge occurs when there is far more energy in the power lines than is technically intended, which can cause significant damage to electrical appliances.
Michael Herte from the Schleswig-Holstein Consumer Advice Centre told the NDR that in such cases “considerable damage can occur and, of course, appliances may be rendered unusable”.
What damage was caused by the power cut?
The power surge led to several fires and significant damage to property. At the Friedrichstadt substation, a fire broke out on a surge arrester, and at the substation in Linden (Dithmarschen district), there was a smouldering fire with smoke emanating from a medium-voltage installation. No one was injured, according to a police spokesperson.
Particularly dramatic was the fire in a thatched-roof house in Bunsoh (Dithmarschen district), where an electrical box caught fire and the blaze spread to the entire house. According to the police, this incident is also linked to the power fluctuations. The damage is estimated at around 500,000 euros, as reported by Tageblatt.de and Die Welt on 20 October 2026. SH Netz strongly recommends that, in the affected regions, fuse boxes, domestic electrical systems and all connected electrical appliances be inspected by a specialist firm.
Are those affected entitled to compensation?
Yes, those affected are entitled to compensation in the event of a power surge. Electricity is regarded as a product, and therefore the Product Liability Act applies. Case law has established that a power surge constitutes a product defect. In such cases, the network operator is liable as the manufacturer, regardless of fault, if privately owned property is damaged, according to Michael Herte from the Schleswig-Holstein Consumer Advice Centre, speaking to NDR.
However, it is important to note that there is an excess of 500 euros. This means that those affected may have to bear part of the cost of the damage themselves. In the case of more significant damage amounting to several hundred euros, Herte recommends seeking advice on whether legal action is appropriate.
How do you report damage correctly?
To make a claim, it is crucial to document the damage correctly and promptly. Here are the key steps:
- Report the damage immediately: Report the damage to the network operator straight away. SH Netz provides an online form for this purpose.
- Keep the equipment: Do not dispose of faulty equipment or parts. They serve as important evidence.
- Take photographs: Document the damage comprehensively with photographs.
- Consult an electrician: Ask an electrician who has assessed the damage to record the cause of the damage in writing.
- Notify your insurance provider: Report the damage to your home insurance or contents insurance provider at the same time. Here too, the rule is: do not delay.
Michael Herte emphasises that providing a clear and detailed account of your claim often leads to providers responding cooperatively. If you have any questions about settling a claim, you can also contact the Schleswig-Holstein Consumer Advice Centre.
How can you prepare for future power cuts?
The power cut in Schleswig-Holstein highlights how important it is to be well prepared for crisis situations. The state of Schleswig-Holstein is promoting self-preparedness among the population with the slogan “kommklar_sh”. Experts recommend, amongst other things, building up a stock of food and water to last several days, as well as keeping an emergency kit to hand containing a torch, radio and power bank.
For further information on financial security and planning in Germany, you can also use our Gross-to-Net Calculator 2026 or the Citizens’ Income Calculator 2026 (New Basic Income Support).
Frequently Asked Questions
What is a power surge and how does it occur?
A power surge is a brief rise in electrical voltage within a power grid that far exceeds the normal operating level. It can be caused by lightning strikes, switching operations within the grid or, as in this case, by a short circuit in the high-voltage grid.
Which devices are particularly susceptible to damage from power surges?
Sensitive electronic devices such as computers, televisions and routers are particularly susceptible to damage from power surges, as are household appliances such as washing machines and fridges. Domestic installations such as fuse boxes can also be affected and cause fires.
Who should you contact in the event of damage caused by a power cut?
In the event of damage caused by a power cut, the primary point of contact is the network operator, in this case SH Netz. You should also inform your home contents or buildings insurance provider, as they may be able to cover part of the damage.
How long does it take to identify the cause of a power cut?
Identifying the exact cause of a power cut, particularly in the case of complex grid faults such as a short circuit in the high-voltage grid, can take some time. A team comprising IT and network operations staff is working to analyse 10,000 lines of measurement data in order to identify the cause of the blackout.
Sources: ndr.de · Tageblatt.de · DIE WELT. As at 22 October 2026.
