Electricity cost in the spot market of the local power exchange OPCPOM dropped 32% to 121.6 lei (EUR28) a megawatt hour in May, from RON178.8 a MWh in the year-ago period.
Meanwhile, both the number of transactions and the quantities traded have increased significantly, reflecting the higher impact of renewables, particularly the wind energy.
The lower market prices have no effect on the cost of the electricity bill for households, as tariffs in the sector are regulated by the government.
According to OPCOM data, spot market deals covered around 32% of the local energy consumption at the end of May, up from some 20% in the year-ago month.