Weekly average electricity prices rose across most major European markets in the fourth week of September, while Italy was the only exception. The Nordic market recorded the largest increase, with prices up 35%, followed by Great Britain at 31%. Gains were also reported in the Netherlands (+18%), Belgium (+17%), Germany (+14%) and France (+12%). Spain and Portugal posted smaller increases of 9.7% and 10%, respectively, while Italy fell by 6.7%.
Even with the decline, Italy recorded the highest weekly average price at €201.47/MWh. The Nordic market remained the lowest-priced area, averaging €109.72/MWh. Among other markets covered by AleaSoft Energy Forecasting, weekly average prices ranged from €144.87/MWh in Spain to €176.70/MWh in Great Britain.
Weekly peaks and lows across major markets
Most markets reached their weekly price peaks on Tuesday, September 22. Great Britain recorded a peak of €230.16/MWh, the highest level among the markets analyzed and its highest since January 23, 2025. Germany and the Netherlands also exceeded €220/MWh, reaching €226.18/MWh and €223.94/MWh, respectively, while Belgium peaked at €211.18/MWh. Italy’s weekly peak occurred on Monday, September 21, at €224.23/MWh, with prices staying above €200/MWh from Monday through Friday.
France, Portugal and Spain set their weekly highs on Friday, September 25. France reached €161.52/MWh, Portugal recorded €161.38/MWh, and Spain posted €158.92/MWh. On the lower end of the week, the Nordic region recorded the lowest price at €52.11/MWh on Monday, September 21.
Prices declined across all analyzed markets on Sunday, September 27 compared with the previous day. France, Portugal, Spain, Great Britain, Belgium and the Netherlands recorded their weekly lows that day, with values ranging from €113.65/MWh in Spain to €118.54/MWh in Great Britain. The Nordic market remained the lowest-priced area overall at €56.07/MWh.
Northern wind output and demand factors; next-week outlook
AleaSoft Energy Forecasting linked higher electricity prices in most markets to lower wind power generation alongside falling gas prices. In Great Britain and Portugal, stronger electricity demand added upward pressure on prices during the period described. In Italy, higher wind generation combined with lower demand contributed to the decline in electricity prices.
AleaSoft also reported that forecasts for the week beginning September 28 point to higher electricity prices across most of the analyzed European markets. Italy and Great Britain are identified as main exceptions, with prices expected to decline in both markets.