The Summary pane shows details for the plan and represents high level details for the optimization area. Before a plan is executed only the Before and After (Estimate) details will be populated. Once a plan has been executed and the power flow resolved, the After (Actual) will be populated. By showing both the estimate and the actual, you can compare the results to determine if any adjustments need to be made to the underlying DMS data (for example, inaccurate load profiles creating incorrect estimates).