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For reference, the price for fixed-cost plans is around 10c/kWh.
As someone who’s been constantly running an electric heater in the garage while painting my car, I was quite lucky with the timing.
It’s not literally free, though. Transfer prices are fixed, and there are taxes and some other minor costs associated with it, so where I live, it still adds up to around 6c/kWh even when the price drops to zero. The cheap prices are due to an excess of wind power, but once the wind dies down, prices usually spike hard.
I don't remember the exact statistics but around half of Finns have plan similar to mine where the prices change hourly. So far it has been cheaper on the long run but there are days when the prices are so high that you basically have to turn off heating or it'll cost you hundreds in one day. There is no upper limit to it but there's no lower limit either. Sometimes it goes to negative as well. Last year there was a day when it went so far into negative that people were earning money by running electric heaters outside in the winter.
Interesting to hear the differences. I'm on a similar plan in the UK.
For us the prices changes every 30 minutes and there's a maximum unit price. I believe it's £1 per kWh maximum, but I've never seen anything over 65p. There a peak price window every day between 4pm and 7pm where the price has an extra multiplier applied, and that's when you can get the high prices.
Overall I'm saving hundreds of pounds a year over a normal plan, and can change plan within 24hours if I ever feel it's the wrong choice. This last weekend for us with the unit price around zero Saturday night, Sunday daytime (before peak) and Sunday night when it went slightly negative.
Nordic energy market is capped between -0,5€ - 2,00€/kWh (upper limit might go up if needed). Average market price for last 30days was 0,05€/kWh, which is fairly normal. Price currently is per hour, but market will change to 15min next year.
In Finland, we pay distribution separately, it is commonly 0,02€-0,05€/kWh, depending on the grid company.
On top of that there is electricity tax which is 0,03€/kWh.
Total is something around 0,12-0,15snt/kWh.