Complete the LEED-ND Building Energy Summary for projects pursuing LEED v4 ND: Built Project GIB Prerequisite: Minimum Building Energy Performance and GIB Credit: Optimize Building Energy Performance. This summary calculator specific to LEED-ND collects energy consumption costs and renewable energy costs from the Performance Outputs tab of the Minimum Energy Performance Calculator. Use the summary tab in the calculator to complete the form in LEED Online.