Power failure in southern Europe: Germany is concerned about security of supply!
Power failure in southern Europe: Germany is concerned about security of supply!
On Monday of this week there was a large -scale power failure in Spain and Portugal, which caused uncertainty in Germany. These incidents raise questions about how well German households are prepared for such situations. According to a survey, 73 percent of the respondents are insufficiently prepared for a possible power failure. This could be due to the latest developments that alert more and more people, especially after the blackout in southern Europe, which focuses on the question of self -sufficiency of photovoltaic systems in network failures. The Suddeutsche Zeitung reports that there are clear answers from the Süc in Coburg.
photovoltaic owners in Germany have a growing interest in the possibilities that their systems can offer in the event of a power failure. It is known that conventional PV systems are automatically switched off in the event of a network failure for safety reasons. In this context, solar systems with an emergency power function offer a helpful alternative. These make it possible to continue to operate important devices such as refrigerators, WLAN routers or computers during a power failure. The energy usually comes from previously invited battery storage.
technical options for emergency power supply
For those interested who consider emergency power supply, certain technical requirements are required. These include:
- a power memory
- an emergency unpleasant inverter
- an electrical switchover device to separate the house network from the public network
- Optional: A special circuit for emergency power consumers
It is important to understand the difference between emergency current and replacement current. Emergency current is usually only provided via a socket, while a replacement current takes over the entire house network and requires more complex technical solutions. Despite the technical possibilities, simple emergency power solutions cost between 500 and 1,000 euros, more complex systems for replacement electricity function can cost several thousand euros. Possible conversions are included.
background to power failures
The past ten years have shown that the complexity of the power supply increases continuously. This is not only shaped by technical innovations, but also by factors such as extreme weather events and geopolitical crises. These can have a negative impact on the stability of the power grid. The International Energy Agency (IEA) has classified various types of power failures, with cascading failures representing particularly critical scenarios. One example is the blackout in North America from 1965, which left 30 million people without electricity.
Statistically speaking, a power failure in Germany only takes an average of about ten minutes a year. Nevertheless, the risk of longer power failures increases due to increasing weather extreme and increasing electricity needs. A survey by E.ON shows that 77 percent of potential PV users want a power memory with emergency power function. This underlines the interest of the population in a sustainable approach to energy self -sufficiency.The uncertainty with regard to the power supply and the potential economic and health consequences of power failures are demanding both industry and politics to find new solutions for future power supply. The guarantee of a stable and safe energy supply remains a challenging task in view of the increasing demand and the dependence on renewable energies.
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