Emerging economies are the fastest-growing adopters of targets, says a report from the International Renewable Energy Agency (Irena).

The report – entitled Renewable Energy Target Setting – points out that the renewables goals vary from ‘vision statements’ at one end of the spectrum to legally-binding targets with sanctions for non-compliance at the other.

The targets are overwhelmingly connected to renewable power production, with the electricity sector the focus of policies in 150 nations.

However,