According to a new analysis by Green Tank published today (20 May 2026), electricity supply costs in Greece remain among the highest in the EU-27, despite relatively low taxes and levies on household bills. Historically, Greece has ranked among the most expensive EU countries for the competitive component of electricity tariffs — that is, the cost of energy procurement itself.
Widening Price Gap in 2025
While Greece’s procurement cost approached the EU-27 average in 2024, the gap widened again in 2025. By nominal prices, Greek electricity was €36.5/MWh — or 29.3% — more expensive than the EU average. When adjusted for purchasing power parity (PPP), the difference grew to €72.6/MWh — or 57.8% — above the EU average. As a result, Greece ranked as the most expensive EU-27 country for electricity in terms of consumer purchasing power in 2025, and third most expensive on nominal prices.
A Different Picture With Taxes and Levies Included
However, when taxes and levies are factored in — as measured by the HEPRI Observatory’s data on total household electricity bills — Greece’s position shifts significantly. The country’s overall electricity cost falls close to the EU average, even after accounting for purchasing power differences.
High Household Reliance on Electricity
Green Tank also highlights structural features of Greece’s energy market. Electricity accounts for 38.4% of final household energy consumption — notably higher than the EU-27 average of 26.9%. This heavy reliance helps explain Greek consumers’ heightened sensitivity to external shocks, such as geopolitical developments in the Middle East.
Greece Tops EU Rankings for Energy Poverty
On energy poverty indicators, Greece leads the EU. In 2025, 31.9% of Greek households had overdue utility bills — more than 4.5 times the EU-27 average of 7%.
Yellow Tariffs Were the Cheapest
Among the three main tariff categories — green (regulated), blue (fixed-term contracts), and yellow (variable, market-based) — yellow tariffs were consistently the cheapest in both 2024 and 2025, with two exceptions: the first five months of 2024. In 2025, the average green tariff was 23.1% higher than the average blue tariff and 34.3% higher than the average yellow tariff. Over the full year of 2024, the average blue tariff was nearly 20% more expensive than the average yellow tariff; that gap narrowed to 9.5% in 2025.
It’s important to note that these price comparisons do not reflect qualitative differences between tariff types — such as price stability or contract duration — which strongly influence consumer choices. For instance, customers selecting a blue tariff often do so to lock in a fixed price for one or two years, avoiding monthly volatility in energy costs.