It's a nice UI, and there is interesting data in there, but I think it is just an static estimate of averages, rather than something linked to actual live data like http://gridwatch.co.uk/ or https://gridwatch.templar.co.uk/france/ It's not super clear. It says it's using 2 hour slots, but there's no clock saying when it was last updated or anything.
> The math behind it is real, and it uses the same calculations that real grid operators use to keep the lights on. However, the amount of power that each power plant actually produces depends on the price they offer. This price varies wildly from hour to hour, and neither the price nor the power amount is publicly available.
> Instead, pypsa-eur makes assumptions on prices for solar, wind, coal, nuclear, etc. based on historical averages, and then runs an optimisation algorithm to cover all consumption for the least cost of production.