If you're keeping the same power input/output (50MW in this case) then you can add more tanks and scale out capacity with cost savings on storage, generation or

If you're keeping the same power input/output (50MW in this case) then you can add more tanks and scale out capacity with cost savings on storage, generation or transformation. "A bigger gas tank doesn't make the car go faster." Scaling it out proportionally would only have economies of bulk purchase and site engineering.