Water and Energy Relief International
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° There is unprecedented interest in renewable energy , particularly solar and wind energy, which provide electricity without giving rise to any carbon dioxide emission.
° Harnessing these for electricity depends on the cost and efficiency of the technology, which is constantly improving, thus reducing costs per peak kilowatt.
° Utilising electricity from solar and wind in a grid requires some back-up generating capacity due to their intermittent nature. Policy settings to support renewables are also generally required, and some 50 countries have these.
° Utilising solar and wind-generated electricity in a stand-alone system requires corresponding battery or other storage capacity.
° The possibility of large-scale use of hydrogen in the future as a transport fuel increases the potential for both renewables and base-load electricity supply.