In its latest energy outlook, British energy giant BP predicts that fossil fuels as a primary energy source will decline from 80 percent in 2019 to between 55 and 20 percent in 2050, with renewables rising from 10 percent to between 35 and 65 percent. 
The forecast comes as BP adjusts its expectations around the green energy transition, due to the new uncertainties brought on by the war in Ukraine. 
"Global energy policies and discussions in recent years have been focused on the importance of decarbonizing the energy system and the transition to net zero," wrote BP Chief Economist Spencer Dale in a note. "The events of the past year have served as a reminder to us all that this transition also needs to take account of the security and affordability of energy."
As the report explained, energy security and affordability are competing with sustainability for countries' attention and investment dollars. BP calls this an "energy trilemma." 
"Any successful and enduring energy transition needs to address all three elements of the trilemma," Dale wrote. 
Yet the war in Ukraine isn't the only development changing BP's outlook. Another is the passing of the Inflation Reduction Act in the U.S., which is set to invest billions into green projects. 
The most positive scenarios, in terms of the climate, that BP outlines anticipate four trends:
  • Declining use of hydrocarbons
  • Rapid expansion of renewable energy sources
  • Increasing electrification
  • Growing use of low-carbon hydrogen
In all possible cases, the report forecasts that renewables will be adopted  “quicker than any previous fuel in history."