The global renewable energy uptake is growing faster than previous predictions and is now expected to provide nearly 15% of world power generation by 2035, according to oil company BP.
Renewables, including biofuels and wind power, are projected to increase at a rate of 6.6% per year, boosting their share of the total primary energy mix to 9 percent by 2035, up from 3 percent now, BP said in its annual Energy Outlook 2035.
Renewable energy production was 354.6 million tonnes of oil equivalent in 2015 and will rise to 1,359.4 million tonnes by 2035, it added.
The firm revised its forecast of renewables growth up by 14% from last year due to faster-than-expected technology cost reductions, particularly for solar power, and in anticipation of policies to further support low-carbon energy, reported Reuters.
BP likened the surge in renewable power to oil's growth at the beginning of the 20th century.
"The rate at which renewables gain share from 2020 to 2035 matches oil's gain over the 15 years of 1908-23 - years that included the Texas oil boom, the discovery of oil in the Middle East, the British Navy switching to oil, and the Model T Ford starting mass motorization," BP said in the outlook.
Other renewables forecasts are more bullish. Green energy policy network REN21 says renewable energy capacity grew by 8.5 percent in 2014 alone.
While BP sees renewables accounting for 15 percent of electricity generation in 2035, the International Energy Agency forecasts that they will account for a third by 2040.
While renewable energy growth rises, coal growth will slow by 0.5 percent a year, resulting in its share of the primary energy mix falling to 25 percent by 2035, with gas replacing it as the world's second-largest fuel source, BP said.
In spite of this, carbon dioxide emissions are seen growing by 20 percent from 2014 to 2035. Their growth rate is expected to more than halve to 0.9 percent a year over the next 20 years compared to 2.1 percent a year in the past 20 years.
BP said global energy demand is expected to grow by 34 percent by 2035 while oil production is expected to double.