Some technical details: I validated the data I used against the overlapping period 2015-2016 of ENTSO-E and Smard databases: 17/ - ThreadSky

kopfgold.bsky.social • 104 days ago

Some technical details: I validated the data I used against the overlapping period 2015-2016 of ENTSO-E and Smard databases: 17/

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kopfgold.bsky.social•104 days ago

Battery and DSM is simulated by smoothing residual load over 24 hours. In a sense this is best possible because it embodies perfect foresight and no losses. The width and shape of the smoothing kernel is up to debate though: 18/

kopfgold.bsky.social•104 days ago

Increasing the number of hours for smoothing has diminishing returns. Here the capacity is directly derived from the number of hours and is to be understood as a virtual value representing batteries and DSM together. The smoothing kernel above corresponds to 1.16 TWh: 19/

kopfgold.bsky.social•104 days ago

The energy deficit in a time period is calculated as the integral of smooth positive residual load minus .4 times the integral of smooth negative residual load. Here I assume a mean round trip efficiency of 40% for long term storage, e.g. electrolysers, H₂ storage and CCGTs. 20/

kopfgold.bsky.social•104 days ago

Judging by needed storage capacities, power backup and import dependence we got a serious challenge at hand to make the system work. Clearly, it has to be viewed in the context of the European grid to at least partially alleviate energy deficits in Germany. 21/

kopfgold.bsky.social•104 days ago

Thanks for reading! First Photo by https://unsplash.com/@mirakemppainen. Here's the link to the first post for sharing: https://bsky.app/profile/kopfgold.bsky.social/post/3leoeyhv3cf2i

backonthegrid.bsky.social•104 days ago

Cool thread! Enjoyed reading. May I ask what you used to make these charts? I've used plotly in the past, but this looks nicer. Tableau or PowerBI maybe?

kopfgold.bsky.social•103 days ago

Thanks! Calculations and graphs are done in Julia with makie, tables with latex.

backonthegrid.bsky.social•102 days ago

Great, thank you very much!

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