IRENA finds world could save US$23bn per year if it replaced costly coal with cheaper solar and wind while Imperial College-IEA conclude green energy plays make more money at lower risk.
Costs have tumbled to such an extent that new-build LCOEs are catching up with marginal costs of non-renewables, says firm in update that finds storage is too becoming more competitive.
Decade-long plummeting of renewable costs as nuclear became pricier means new solar and wind are the cheaper, time-efficient ally against climate change, new study says.
