This article is more than 3 years old Renewables made up half of net electricity capacity added last year

Green energy accounted for more than half of net electricity generation capacity added around the world last year for the first time, leading energy experts have found.

The International Energy Agency (IEA) said the milestone was evidence of a rapid transformation in energy taking place, and predicted capacity from renewable sources will grow faster than oil, gas, coal or nuclear power in the next five years.

But the analysts said the outlook in the UK has deteriorated since the Conservative government took power last year and cut support for wind and solar power. The agency’s chief said Britain had huge renewable energy potential and ministers needed to design stronger policies to exploit it.

“What I see is we are witnessing the transformation of energy system markets led by renewables and this is happening very quickly,” said Dr Fatih Birol, executive director of the IEA. “This transformation and the growth of renewables is led by the emerging countries in the years to come, rather than the industrialised countries.”

Onshore windfarms and solar power led the charge last year, with 63GW and 49GW of new global capacity respectively. The two technologies are also forecast to take the lion’s share of growth, with electricity generation from solar tripling and wind doubling.

Their costs are expected to continue the dramatic and unprecedented reductions in recent years, with onshore wind coming down a further 15% and big solar 25% by 2021.

“The cost of wind dropped by about one third in the last five to six years, and that of solar dropped by 80%,” said Birol, adding that while the cost of gas had also fallen recently, it was not at the same speed that green energy had become cheaper. “The decline in renewables [cost] was very sharp and in a very short period of time. This is unprecedented.”

While renewables now account for more than 50% of net capacity additions and are expected by the IEA to reach around 60% by 2021, they still provide a relatively small share of the world’s electricity. Green sources are only expected to provide 28% of electricity generation by 2021, up from 23% in 2015, and much of that will be from existing hydropower dams.

Renewable energy is seen by scores of countries as a key way to meet climate targets that they pledged under the Paris agreement, which comes into force in November.

But even with the huge growth expected in coming years, the IEA said it will not be sufficient to meet the Paris deal’s target of keeping temperatures below 2C, the threshold for dangerous warming. “No, it’s by far not enough [the trajectory of growth],” said Birol.

The agency painted a gloomy picture of solar and onshore wind’s prospects in the UK, echoing recent warnings from other respected energy authorities. “The policy landscape for renewables has become more challenging since the 2015 general election,” the report said.

Since coming to power, the Conservatives have drastically cut or ended subsidies for wind and solar power, begun the privatisation of the green bank which supports clean energy, and enthusiastically backed fracking for shale gas and new nuclear. “While government support for new gas and nuclear capacity is evident, recent policy changes indicate that the role envisioned for renewables is uncertain,” the IEA said.

more information: https://www.theguardian.com/environment/2016/oct/25/renewables-made-up-half-of-net-electricity-capacity-added-last-year