Applications
See the menu at left for discussions of individual storage applications.
Reduced Cost for T&D Losses
When storage near a load is charged off peak, the total resistive (I2R) losses over the period of a day are reduced. Losses associated with the lower current are smaller than the losses along the same transmission corridor during heavy load periods. A benefit accrues if there is a significant differential between T&D resistive losses on peak versus losses off-peak. For example, if T&D I2R losses are 8% on peak and 5% off-peak the avoided losses are 3%. As a result, fuel use and related air emissions are reduced. The benefit is the total cost of the extra energy generated and the cost of extra generation and transmission capacity. This can amount to some 20 to 50 $/kW/year.