Solar photovoltaic (PV) retains the top spot among renewable energy industries, accounting for a third of the workforce globally.
Biofuels jobs grew to 2.5 million, as production expanded in Brazil, Colombia and Southeast Asia.
In wind power, onshore still dominates employment. Offshore jobs are growing with farms now based in 18 countries, compared to 10 a decade ago.
Hydropower still has the largest installed capacity albeit slower growth.