What if a building has already implemented several energy conservation measures (low and High cost) in the last year but no commissioning plan was in place at that time (and no LEED in their minds)... can the project pursue EAc2.1 and prepare a commissioning plan with a performance period of three months and EAc2.2 with a performance period of 1.5 years, noting that the measures were implemented before the plan was in place? Must both performance periods have to match for these 2 particular credits? Is retrospective commissioning possible?
Thank you