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Clean Power afternoon electricity price dip from solar germany

Published on March 23rd, 2012 | by Zachary Shahan

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German Solar Bringing Down Price of Afternoon Electricity, Big Time! (More Charts & Facts)

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March 23rd, 2012 by Zachary Shahan
 
Yes, we’ve covered how German solar is bringing down the price of electricity on the electricity market 3-4 times now. But here’s one more piece on that with a few fun charts and facts. You’re going to have to pay close attention on this one, though — there’s a lot of “not how it should” be going on.

First thing to note: “German power consumption peaks twice a day, roughly between 12 noon and 1 PM and then later in the evening at around 8 PM,” Craig Morris of Renewables International writes, in a story translated from a Photon (German) article.

Now, while demand dips in between those peaks, it doesn’t go so low as in the dead of night. As such, this is was an electricity spot market price graph from March 2008:


electricity spot market prices germany

While electricity prices rise in the early morning (4am to 8am) as demand rises, from about 8am to 9pm, the price is pretty level.

Now, fast forward to March 2012:

afternoon electricity price dip from solar germany

We again see prices rise from the early morning to about 8 or 9am, but then look at what happens when the sun (and its 25 GW of power capacity from solar panels) kick in — the price drops off a cliff, diving even deeper than the price of electricity in the dead of night!

Basically, simple supply and demand tells you that supply kicks in at around the same time demand kicks in, making electricity prices lower than they would be if supply didn’t grow like that.

Now, something else to note is that nighttime prices are quite a bit higher in 2012 than in 2008, nearly twice as high! Craig notes: “Given that baseload demand has hardly changed, it must be assumed that power companies are charging more in times of lower demand now that they cannot make their old profits during daylight hours.” Hmm…

One last thought: we, humans, generally wake with the sun and sleep when the sun goes down (OK, very generally these days, but it’s still the general pattern). Doesn’t it make sense to match our electricity source with that sun a bit more? Of course it does, as the graph above helps to show. Thomas Edison would have been proud (and making good money off of his forethought):

thomas edison clean energy

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About the Author

is the director of CleanTechnica, the most popular cleantech-focused website in the world, and Planetsave, a world-leading green and science news site. He has been covering green news of various sorts since 2008, and he has been especially focused on solar energy, electric vehicles, and wind energy since 2009. Aside from his work on CleanTechnica and Planetsave, he's the founder and director of Solar Love, EV Obsession, and Bikocity. To connect with Zach on some of your favorite social networks, go to ZacharyShahan.com and click on the relevant buttons.



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  • http://k.lenz.name/LB Karl-Friedrich Lenz

    And I forgot to write that in the comment above, but while Craig Norris is always one of the best informed writers on Germany, his comment on “power companies charging more at night” doesn’t make sense here. Remember, we are looking at a chart of exchange prices, not prices charged to residential costumers…

  • http://k.lenz.name/LB Karl-Friedrich Lenz

    A nice little soundbite for this is “solar is eating nuclear’s lunch”.

    And wind is eating its dinner.

    • Bob_Wallace

      Stick some storage in the system and nuclear starves to death….

    • http://cleantechnica.com/ Zachary Shahan

      Nice one. :D

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