Category: Uncategorized

  • Solar vs wind power in Sweden 2030

    Bengt J. OlssonTwitter: @bengtxyz  Solar power installations are increasing at an exponential rate in Sweden right now. And what it is it not to like about solar power? Provides free energy right into your house or apartment, and if you can’t use the energy just sell it back to your utility company at spot prices. With…

  • Wärtsilä’s concept for base load power generation

    Bengt J. OlssonTwitter: @bengtxyz  In an article in the Finnish daily newspaper Helsingen Sanomat, a concept for producing a guaranteed base load power, corresponding to a large nuclear reactor, is presented. Unfortunately there is no reference to a report, but the context seems rather clear from the summary table: So the basic assumption is that with…

  • Intermediate 2030 power system scenario

    Bengt J. OlssonTwitter: @bengtxyz  In this post we will analyze a 2030 scenario that is 8 years away from now. The demand is captured from the “Scenarioanalys 2050” report1. In the figure below (from that report) it can be seen that the consumption 2030 will be about 195 TWh out of which 30 TWh are used…

  • Here comes the sun

    Bengt J. OlssonTwitter: @bengtxyz  I finally got around to add solar (PV) power to the balance model. As I suspected, this did not significantly change the conclusions that could be drawn from the wind-only model. But of course, for the sake of completeness, we should also include solar power in the balance model. Since I couldn’t…

  • What if Sweden had no hydro power in 2045?

    Bengt J. OlssonTwitter: @bengtxyz  From the previous two posts we have a balance model of Swedens power system, with and without a deficit energy store. It models a scenario depicted by Swedish TSO Svenska Kraftnät (SvK) as “Renewable Electrification” (“Elektrifiering Förnybart”; EF) that comprises 286 TWh consumption by 2045, out of which 85 TWh are for…

  • Balancing energy store (2/2)

    Bengt J. OlssonTwitter: @bengtxyz  In the previous post, for the 286 TWh wind power scenario we concluded among others that we would get a deficit of about 0.93 TWh per year, even after significant flex from hydrogen production. In this post we will enhance the simulation by adding a separate balancing energy store that may resolve…

  • A balance model for Sweden’s electricity power system (1/2)

    Bengt J. OlssonTwitter: @bengtxyz  There is a lot of discussion going on about the electricity system of the future given the big impact it has on all of us. Discussions about renewables and fossil-free are often based on models developed by various authorities or energy organizations. These are often extensive and hardly accessible to anyone…

  • En enkel balansmodell för Sveriges elsystem

    Bengt J. OlssonTwitter: @bengtxyz  Den här posten finns också som en artikel i nättidningen Second Opinion Mycken diskussion pågår om framtidens elsystem givet den stora påverkan det har för oss alla. Diskussioner kring förnybart och fossilfritt utgår ofta ifrån modeller framtagna av olika myndigheter eller energiorganisationer. Dessa är ofta omfattande och knappast tillgängliga för andra…

  • Akalla-Husby Nätort – A pioneering broadband network

    About 10 km north of Stockholm, the mighty district of Kista is situated. Kista is well known as the “Silicon Valley” of Stockholm and Sweden. Big corporations as well as young tech-savvy companies resides here and spin out innovations and new ideas that attracts attention both from near and far. But Kista also has two…

  • Money makes the world go around…

    Monetization models Products can be traded in many different ways. Some of these ways can actually contribute to the value of the product, why it is interesting to explore these ways. In the old times, when merchandise was all about “things” that you could hold in your hand or at least see and touch, the…