The global renewable energy industry employed 9.8 million people last year, up 1.1 percent from 2015, led by the solar photovoltaic business, according to the latest annual report on the industry from the International Renewable Energy Agency (Irena).

Growth has slowed in the past two years, while the solar photovoltaic category, with 3.09 million jobs, and wind business more than doubled their respective employee numbers since 2012, the first year assessed, Irena said in the report.

“The nature of jobs is changing a little bit, with more emphasis on the installation, operational and maintenance side,” Adnan Amin, Irena’s director general, told Bloomberg in an interview in Abu Dhabi. “That doesn’t grow as fast as the growth in manufacturing, which was very quick because the technology cost was coming down and you had this huge explosion in equipment.”

Here are some of the highlights from the report:

  • Global renewables employment has climbed every year since 2012, with solar photovoltaic becoming the largest segment by total jobs in 2016.
  • Solar photovoltaic employed 3.09 million people, followed by liquid biofuels at 1.7 million. The wind industry had 1.2 million employees, a seven percent increase from 2015.
  • Employment in renewables, excluding large hydro power, increased 2.8 percent last year to 8.3 million people, with China, Brazil, the US, India, Japan and Germany the leading job markets. Asian countries accounted for 62 percent of total jobs in 2016 compared with 50 percent in 2013.

Renewables jobs could total 24 million in 2030, as more countries take steps to combat climate change, Irena said.