Why does one country have four prices?

Because the transmission capacity between northern and southern Sweden is limited. Most generation is in the north and most demand is in the south, so when the link between them saturates the market splits and each zone clears at its own price.

Stockholm is SE3 and Malmö is SE4; Sundsvall is SE2 and Luleå is SE1. The saver draws all four at once rather than asking, because the comparison between them is the interesting part.

Yes. It comes from Elprisetjustnu, which publishes Nordic spot prices per zone per day. Nothing is invented or simulated, and if the source cannot be reached the saver reports that instead of drawing something plausible.

Does it cost anything or need an account?

No. Every screensaver here is free, runs in the browser and needs no sign-up. This one uses a public API that requires no key.

Swedish Power Zones Screensaver

The Swedish Power Zones screensaver draws today's spot electricity price for all four Swedish bidding zones — SE1 and SE2 in the hydro-rich north, SE3 and SE4 in the populous south — in kronor per kilowatt-hour, live and key-less from Elprisetjustnu. The gap between the top and bottom lines is a direct readout of how congested the national grid is. It runs in the browser with nothing to install; press ESC to exit.

How the Swedish Power Zones screensaver works

The saver reads Elprisetjustnu, which publishes Nordic spot prices per zone per day.

No account and no key: the request goes straight from your browser, or from this site's own refreshed copy of the feed where the source does not allow browser access.

Values are drawn on a canvas that resizes with the window, so it works on a laptop or a wall display.

If the source is unreachable the saver says so on screen rather than showing stale numbers as though they were current.

A worked example

Four coloured lines run across the day, each labelled with its zone and current price. On an unconstrained day they sit almost on top of each other and the footer reads “all four zones clearing together”. On a cold, still afternoon SE4 climbs away from SE1 and the footer reports the spread — sometimes more than a krona per kilowatt-hour for the same electricity in the same country at the same moment.

Settings & tips

Accent and Background recolour the display without changing the data.
Add it to a Multi-view grid to watch it alongside other live savers.
Press ESC at any time to leave fullscreen.

Frequently asked questions

Why does one country have four prices?: Because the transmission capacity between northern and southern Sweden is limited. Most generation is in the north and most demand is in the south, so when the link between them saturates the market splits and each zone clears at its own price.
Which zone am I in?: Stockholm is SE3 and Malmö is SE4; Sundsvall is SE2 and Luleå is SE1. The saver draws all four at once rather than asking, because the comparison between them is the interesting part.
Is this real data?: Yes. It comes from Elprisetjustnu, which publishes Nordic spot prices per zone per day. Nothing is invented or simulated, and if the source cannot be reached the saver reports that instead of drawing something plausible.
Does it cost anything or need an account?: No. Every screensaver here is free, runs in the browser and needs no sign-up. This one uses a public API that requires no key.

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