If the world is serious about halting the worst effects of global warming, the renewable energy industry will require $12.1 trillion of investment over the next quarter century, or about 75 percent more than current projections show for its growth.
That’s the conclusion of a report setting out the scale of the challenge facing policymakers as they look for ways to implement the Paris Agreement that in December set a framework for more than 195 nations to rein in greenhouse gases.
The findings from Bloomberg New Energy Finance and Ceres, a Boston-based coalition of investors and environmentalists, show that wind parks, solar farms and other alternatives to fossil fuels are already on course to get $6.9 trillion over the next 25 years through private investment spurred on by government support mechanisms. Another $5.2 trillion is needed to reach the United Nations goal of holding warming to 2 degrees Celsius (3.6 degrees Fahrenheit) set out in the climate agreement.
The required expenditure averages about $484 billion a year over the period, compared with business-as-usual levels of $276 billion, according to Bloomberg calculations. Renewables attracted a record $329 billion of investment in 2015, BNEF estimates.
While the figures are large, they’re not as eye-watering as the International Energy Agency’s projection that it’ll cost $13.5 trillion between now and 2030 for countries to implement their Paris pledges, and that an extra $3 billion on top of that will help meet the temperature target. Those figures aren’t just limited to renewables: they also include energy efficiency measures.