![Figure 1: Annual share of annual variable renewable power generation in 2014 and in 2030 if all REmap options are implemented](https://www.infrastructureusa.org/wp-content/uploads/2015/06/irenafig1.jpg)
INTERNATIONAL RENEWABLE ENERGY AGENCY
International and national assessments of the global electricity storage market have been hindered by uncertainty
about which technologies and market segments to include. A central question for this roadmap is
whether storage is used to support the integration of renewables or for other purposes.