PV and wind are already cheaper than coal and oil and about even with NG.
Comparatively dirt cheap gravity batteries can store power at grid level.
No toxic or exotic materials. No pollution or by product.
100% reliability . Off the shelf components could be used anywhere .
Comparatively dirt cheap gravity batteries can store power at grid level.
No toxic or exotic materials. No pollution or by product.
100% reliability . Off the shelf components could be used anywhere .