Power grid: Tennet paid a billion euros for emergency interventions

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Wind farm in the North sea at Liverpool (picture: Christopher Furlong/Getty Images)

In the North, wind power in Abundance, and scarcity in the South: The regional unbalance of the energy transition sets the power grids under pressure. The grid operator Tennet reported by record costs for emergency interventions. It should stay, as long as the network is not expanded.

The Expansion of renewable energy in the German power grid under increasing pressure. The major electricity network operator, Tennet, whose power is sufficient area in the middle of Germany, from Schleswig-Holstein to southern Bavaria, had to pay in 2017, almost one billion euros for emergency interventions in the network. The Tennet announced on Monday on the basis of provisional Figures.

The intervention costs were up in 2015, still significantly lower at 710 million euros in the wind weak, 2016, only 660 million Euro. The costs are allocated on the so-called network charges to the price of Electricity and end up at the end by the consumer.

“The network is loaded due to the strong Expansion of Renewables more extreme. We absolutely need an energy revolution-network, that is, the legislature already approved the grid expansion projects”, called for the Tennet Board member Lex Hartmann. “Until then, network bottlenecks, high costs for consumers and an increasingly
unstable supply the hard reality.”

Care is expensive – but surely

Also, the President of the Federal network Agency, Jochen Homann, sees billion cost to the consumer: “the stabilization of The networks has become more complex and costs us all a lot of money. These costs decrease only by the big power lines,” said Homann. However, the authorities chief holds the power supply in the meantime, until the Start of the new lines for sure: “A warning against power outages until then, it would be an exaggeration.”

Based interventions will be necessary if power lines to bring wind power from the North to the South. In the stormy autumn and the Winter Gas in the North, then again and again – and coal-fired power plants to shut down, or wind farms to be switched off against reimbursement of costs, because more electricity would be produced than the network can accommodate. Thus, in the South, however, the lights go out, there are also dangers of conventional reserve power plants. Often, the power reserve also comes from Austria. Also, the network operator must pay compensation.

Share of renewable energies was 2017 at 33.1 percent

The Expansion of wind power on the sea and in the country’s interior is progressing. According to preliminary Figures of the Federal Association of energy and water industries (BDEW), the share of renewable energy in electricity generation 2017 to 33.1 per cent to 29.0 per cent in the previous year.

“The situation will relax only when the energy transition-the network is expanded,” said Hartmann. Tennet is building itself together with the network operator TransnetBW, the “aorta of the energy revolution”, the current connection Südlink for the Transport of wind power from the North sea to Bavaria and Baden-Württemberg. According to the current planning, it should be 2025, if lawsuits to stop the construction. Homann confirmed this schedule: “It remains our goal that the new North-South Connections 2025 can go into operation.”

Hartmann expressed optimism for further Expansion: “in 2018, we will see progress here. In the case of major projects, we will come a good step forward,” he said. The grid operator Tennet has costs due to the large expansion of network area is also the largest share of the German network intervention. After the shutdown of the last nuclear power plants in 2022, the intervention could increase costs, according to the Federal network Agency, even up to four billion euros nationwide in the year.