For sure. I have high hopes for gravity-based storage like Energy Vault's solution, but would also like to see more countries explore seasonal thermal energy storage: https://en.wikipedia.org/wiki/Season...energy_storage
I'd say that some kind of Redox Flow battery is likely more scalable. There are research batteries which use lignin as a basis and some projections arrive at a cost of a mere 3 ct/kWh.
When the stars threw down their spears
And watered heaven with their tears:
Did he smile his work to see?
Did he who made the lamb make thee?