To Add More Renewables to the Grid, We Need Energy Storage with a Critical Component: Inertia

The adoption of renewable energy is expected to increase across the U.S. Projections from the federal Energy Information Administration indicate that from 2020 to 2050 utility-scale wind capacity will grow by 20 gigawatts (GW) and utility-scale solar photovoltaic capacity will grow by 127 GW.
Source: Renewable Energy