Thermal energy output declined 20.3% on the year to 9.24 billion kilowatts hour, while nuclear power production inched down 1% to around 4 billion KWh, the statistics institute INS said.

On the other hand, hydropower production rose 26.1% on the year to 5.1 billion KWh in January through April, while wind farm output more than doubled to 1.82 billion KWh.

Romania’s primary energy resources fell 12.1% on the year to almost 10 million tons of oil equivalent in the January-April period, the data showed.

Electric energy resources were down 3.3% to 20.4 billion KWh, largely due to a 2% decline in production.

Romanian final power consumption reached 17.2 billion KWh in the first four months of the year, down 3.7% from the same period of 2012. Public illumination fell 8.6% on the year, while household consumption was down 1.3%.

Electric energy exports declined 10.3% year-on-year to 440.6 million KWh in the first four months of 2013.