There is already a well laid out case in favor of renewable technologies across the world. Kyoto Protocol of 1992 of United Nations Framework Convention on Climate Change (UNFCCC) paved the way for all major governments to adopt carbon neutral policies and practices.
With Paris Convention of 2015 of UNFCCC, governments of the world have renewed their commitment to further boost renewables on their energy grids.
The world has likewise grown from less than few GWs of Renewable capacity (mostly in wind, Bioenergies & very few in Solar) to around 921 GWs in 2017, as reported by Renewable Energy Policy Network for the 21st Century(REN21) in its global status report.
Wind & Solar put together already represents over 20% of the global capacity; however, this green energy club may not continue this fast stride as it has made over last several decades if Energy Storage is not looked into sooner.