Providing 90% of power is not "powering the world".
It really helps to also have a complementary storage technology with low capacity capex, even if the round trip efficiency is lower. This would complement batteries in the same way ordinary RAM complements cache memory in a computer.
It really helps to also have a complementary storage technology with low capacity capex, even if the round trip efficiency is lower. This would complement batteries in the same way ordinary RAM complements cache memory in a computer.