Will major city turn subway trains into EV power stations?

Major city turns subway trains into EV power stations: 'There's so much energy that's not being used' first appeared on The Cool Down. "We're trying to take advantage of the power that's already in the metro system."

How many MWh of storage will a 78th Street substation have?

a total of 26 MWh of storage recharged overnight. Control would be based on power draw at each individual substation. Figure 11. Power Demand at the Roosevelt Avenue and 78th Street Substation During a Weekday Figure 11 shows demand at the Roosevelt Avenue and 78th St. substation, one of 13 substations serving the 7 Line.

How much power would a 7 line substation use a day?

Peak demand on the 7 Line is approximately 26 MW for 2 hours, twice per day. A 25% reduction in demand would require a total of 26 MWh of storage recharged overnight. Control would be based on power draw at each individual substation. Figure 11. Power Demand at the Roosevelt Avenue and 78th Street Substation During a Weekday

How is energy storage used in energy recovery applications?

In energy recovery applications, energy storage is used to reduce energy consumption through the capture and release of regenerated energy from rolling stock. Typically, energy produced by the train during braking is consumed by other trains operating in the vicinity.

Can wayside energy storage systems improve regenerative braking energy?

Maximum Regenerative Energy Improvement on R142 Train City University of New York (CUNY)/ConEd/NYCT performed a study pertaining to the application of wayside energy storage systems (ESS) for the recuperation of regenerative braking energy within the NYCT subway system.

How much does ESS cost per substation?

Twenty-five percent (25%) demand reduction would result in $166,140 annual savings per substation. The maximum ESS cost to realize a 10-year ROI would be approximately $1,661,400 per substation (based on current demand power rate). Avoided Generation Capacity Costs (AGCC).