Renewables provided more than half of global 2015 power capacity additions. But Mena contributed only 5% amid major barriers to regional renewables expansion.

Last year marked a turning point for renewables, the International Energy Agency (IEA) says, with new capacity additions reaching a record 153GW – more than half of the new power capacity added worldwide.

The agency’s latest Medium-Term Renewable Energy Market Report forecasts a further 13% growth in global renewables...