Electricity prices in the Greek day-ahead market averaged 103.6 euros/MWh in 2025, according to the latest annual report from the country’s Energy Exchange (HEnEx). This represents a moderate year-on-year increase and confirms that the Greek market remained cheaper than some of its regional peers.
Among neighboring markets, Bulgaria recorded an average price of 106.9 euros/MWh, while Italy was the most expensive, at 115.03 euros/MWh. Greece saw a 2.7% annual increase, compared to a stronger rise of 4.24% in Bulgaria and 6% in Italy.
Price developments throughout the year were uneven. February stood out as the most expensive month, with average prices reaching 154 euros/MWh, while August was the cheapest at 73 euros/MWh. The lowest hourly price of the year was recorded on 1 May, when prices dropped to -50 euros/MWh.
On the trading side, electricity demand in the day-ahead market remained broadly stable compared to the previous year. At the same time, volumes linked to renewable energy sources increased by 8%, highlighting the growing role of clean generation in Greece’s energy mix.
Cross-border electricity flows also shifted significantly. Imports fell by 2,833 GWh (a decline of 36.8%), while exports rose slightly by 106 MWh. As a result, Greece closed the year with net electricity exports of 2,732 GWh. The highest daily trading volume in the day-ahead market was recorded on 25 July, when total activity reached 254 GWh.
In terms of market structure, PPC remained the dominant supplier, accounting for 50.08% of total supply.
