Interregional Data Map This map shows the flow of electricity into and out of PJM. The details are zone based showing the flow, interfaces, prices and the real-time load (MW). In the boxes shown on the map, the first value in the box and the arrow (both in black text) represent the actual flow across an interface and the second value and arrow represent the scheduled flow across the same interface. The arrows at the top of each of the boxes represent the direction of power flow. A green arrow indicates the actual flow is from a lower interface price to a higher interface price. Conversely, a red arrow indicates that the actual flow is from a higher interface price to a lower interface price. A white line indicates an interface without a corresponding external interface price.