Offshore wind and Concentrating Solar Power grow quickly from low bases. Geothermal energy continues to develop in areas with good resources.
The IEA said some of the technologies with the largest potential, such asoffshore wind power and concentrated solar power (CSP), were showing the least progress.
In 90 minutes, enough sunlight strikes the earth to provide the entire planet's energy needs for one year.
IEA says we could get up to one third of our global energy supply from solar photovoltaics, concentrating solar power, and solar thermal water by 2060.
"Photovoltaic and concentrated solar power together can become the major source of electricity," IEA senior analyst Cedric Philibert told Bloomberg.
Concentrated solar energy thermal power provides firm, peak, intermediate or base load capacities due to thermal storage and/or fuel back-up.