Batteries are also highly useful for relaxing transmission constraints. I've seen a claim that sufficient storage (at various places in the network) could incr

Batteries are also highly useful for relaxing transmission constraints. I've seen a claim that sufficient storage (at various places in the network) could increase the energy transmittable over the existing grid by a factor of 3. An analogy here is natural gas pipelines with intermediate storage caverns, which allow the pipelines to operate more steadily even if demand various greatly over the year.