O preço da energia na Alemanha disparou para R$ 5.864/MWh devido ao dunkelflaute, o terror das renováveis, enquanto o custo médio no Brasil gira em torno de R$ 600/MWh

Energy Prices In Germany Soared to R$ 5,864/MWh Due to Dunkelflaute, The Terror of Renewables, While Average Costs in Brazil Are Around R$ 600/MWh

Written by Noel Budeguer

Published on 13/12/2024 at 15:52

Updated on 13/12/2024 at 15:53

Uma pessoa reagiu a isso.

The dunkelflaute, Windless Cold Phenomenon, Drastically Reduces Solar and Wind Energy Generation in Germany, Pressuring Demand and Exposing the Fragilities of Renewable Sources

Germany’s electric grid is at its limit. At 5 PM yesterday, wind and solar energy generation stagnated across the country (as well as in neighboring Denmark) and electricity prices soared to €936 (R$ 5800) per megawatt-hour.

The dunkelflaute Phenomenon

The Germans refer to dunkelflaute as the windless cold, a perfect combination that strangles photovoltaic energy production and halts wind turbines at the same time. Typical of cold anticyclones with low temperatures, this phenomenon further raises heating demand across the region.

The term comes from the German words dunkel (dark) and flaute (calm), but the quiet and dark winters in Germany have never weighed so heavily on the electricity bill as in recent years.

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The daily average nearly reached €400 (R$ 2480)/MWh. This is nine times the price of natural gas, an disproportionate figure for an energy mix that, at 5 PM, was divided between 3% hydropower, 8% biomass, 10% wind, 25% gas, and 30% coal.

The peak of €936 (R$ 5800)/MWh triples and even quintuples the highest price recorded in France (with 70% nuclear energy at 5 PM), in Nordic countries (with 90% hydropower), or in Poland (with 65% coal).

The Need for Clean and Transitional Energy

Operators of the German electrical grid faced difficulties meeting demand due to low wind and solar production. This serves as a reminder that renewable energies are intermittent and require investments in storage and alternatives for clean energy. Or, at least, in reliable transitional energy.

The electricity price in Germany has risen 585.23% since the beginning of 2024 in the spot index. The closure of nuclear power plants forced the country to reopen some coal-fired plants. Fortunately, resorting to gas reserves will not be a problem this winter.

With 98% capacity at the beginning of November, German reserves currently hover around 87%, which is sufficient to get through the cold season. This is one less problem to worry about.

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Energy Prices In Germany Soared to R$ 5,864/MWh Due to Dunkelflaute, The Terror of Renewables, While Average Costs in Brazil Are Around R$ 600/MWh

The dunkelflaute, Windless Cold Phenomenon, Drastically Reduces Solar and Wind Energy Generation in Germany, Pressuring Demand and Exposing the Fragilities of Renewable Sources

The dunkelflaute Phenomenon

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Energy Prices In Germany Soared to R$ 5,864/MWh Due to Dunkelflaute, The Terror of Renewables, While Average Costs in Brazil Are Around R$ 600/MWh

The dunkelflaute, Windless Cold Phenomenon, Drastically Reduces Solar and Wind Energy Generation in Germany, Pressuring Demand and Exposing the Fragilities of Renewable Sources

The dunkelflaute Phenomenon

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At just 14 years old, a boy creates a system without energy, using steel pipes buried in the ground, that irrigates seedlings with moisture from the air, to combat the water scarcity threatening reforestation in northern China.

Where there was only sand and wind at 40 degrees, China built a megacity of 500,000 inhabitants with farms, wineries, and universities in the middle of the desert using melted glacier water from hundreds of kilometers away.

Mysterious object on Mars divides NASA and Harvard after Curiosity image reignites suspicions about what was really found on the planet.

What China is doing at the bottom of the sea is already worrying the U.S., and it’s not about oil: ships and sensors are advancing on crucial routes for underwater warfare.

China deploys robots for real cleaning inside homes, with human support, lower prices, and tasks ranging from the bathroom to the cat litter box.

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