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this post was submitted on 12 Jul 2025
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Green Energy
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Why would we need to store energy for more than an day? We only need to smooth out the difference between supply and demand.
The mayor advantage of the European grid is the disconnectedness over long distances. There are always enough places where the sun shines or the wind blows.
I'd say the disconnectedness cross-border is a disadvantage as the grid already is saturated (1). It can be windy in poland, the generated power can't make it to france.
7 days is an understatement if going solar + wind + storage is the plan. Germany has longer periods of no sun and no wind on record.