mknox
Well-Known Member
Demand charges are definitely an issue, which is why batteries will probably be installed at all Superchargers in the future.
With battery storage coming on-line, it's going to be interesting to see how utilities respond (full disclosure: I work for an electric utility). The reason for the demand charge is so that the utility can fund and build the necessary capacity for the customer's peak demand. Even if the peak only happens rarely, the system has to be built with conductors and transformers sized for it. Batteries can certainly mitigate peak charges, but are consumers still going to expect to have full capacity from the grid should the batteries fail or deplete? If so, utilities are simply going to have to find another rate mechanism to fund the larger infrastructure if the demand charge isn't there.