The capacity of wind power generation worldwide reached 432.42 gigawatts (GW) at the end of 2015, up 17 per cent from a year earlier and surpassing nuclear energy for the first time, according to data released by global industry bodies.

The generation capacity of wind farms newly built in 2015 was a record 63.01 GW, corresponding to about 60 nuclear reactors, according to the Global Wind Energy Council based in Brussels. The global nuclear power generation capacity was 382.55 GW as of Jan. 1, 2016, the London-based World Nuclear Association said.

Both wind power and nuclear energy are being touted as alternatives to fossil fuel power as they produce fewer greenhouse gases.

Wind energy has captured renewed attention as technological innovation has considerably lowered its generation costs while nuclear power continues to suffer a backlash following the 2011 Fukushima meltdowns.

Wind power is the leading energy source in the transition from fossil fuels to renewables, the wind energy council said as it released the data last week.

China led all other countries in wind energy generation capacity with 145.10 GW. Beijing is promoting wind power to shift from coal and other fossil fuels to combat air pollution and global warming.

Coming in second behind China is the United States with 74.47 GW, followed by Germany with 44.95 GW, then India with 25.09 GW, then Spain with 23.03 GW. Japan produced 3.04 GW.