use brine from desalination to build sodium ion batteries for grid energy storage

sea water desalination plant produces brine as a waste product, 

brine is water with high concentration of salt, 

use salt from brine to produce sodium ion batteries 

build solar farms to power cities and industries, 

build sodium ion batteries to enable battery capacity in power grid 

according to media sodium ion battery has lower energy density than lithium ion batteries, 

which makes sodium ion batteries ideal for stationary batteries, 

such as grid energy storage