Some data from Ireland SEMO (weekday electricity prices) and quarterly prices from the European Commission imply that Irish weekend prices are greater than weekday prices.
The same datasets used showed the correct relationship (weekend prices lower) for France, Denmark, Netherlands, Belgium, and Norway.
Is this actually the case?
If so, why is it the case? Typically wholesale electricity prices are lower during weekends in most countries.
To clarify, I have wholesale hourly prices for weekdays only for Ireland in 2013 and 2014, from the power exchange: http://sem-o.com/marketdata/Pages/default.aspx For intellectual property reasons I cannot upload them, but taking the mean across these weekday-only prices gives quarterly means in 2014 which are lower than that reported by the European Commission Quarterly Report on European Electricity Markets. An example of a quarterly report: https://ec.europa.eu/energy/sites/ener/files/documents/quarterly-electricity_q3_2014_final_0.pdf (page 14, in the little map of Europe with average prices on the map)
Since the mean of weekdays only is below the mean of all days in a given quarter, this implies that the weekends have higher mean prices than the weekdays. This isn't usually the case for most countries, since generally factories and offices use up more energy than people relaxing at home.