Only electric vehicles, energy storage, solar photovoltaic and onshore wind are receiving sufficient political support to deliver the goals of the Paris Agreement on climate change, according to the IEA's annual energy technology report.
By contrast, the intergovernmental organisation found the development of another 23 technologies to be too slow to rise to the challenge.
In the power sector, unabated coal is not being phased out fast enough worldwide, while weak investment is crippling the potential of carbon capture and storage technologies to cut emissions, it said.
According to the report, conventional biofuels are being rolled out in sufficient amounts to meet long-term climate goals but their advanced counterparts are not.
And offshore wind and hydropower must grow faster, while tidal and geothermal projects remain too expensive.
First published on Ends Europe.
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