Performance Period

I am unaware of any exceptions for past Energy Star scores, all of the language in the reference guide implies data from the actual performance period is needed. For your second question, all credits have a minimum 3 month performance period, with the exception of EAp2 and EAc1, which has a minimum 12 month performance period. (See bottom of page xix in LEED EB 2009 reference manual.)

Paul, There is one situation under which teams are allowed to use an Energy Star score from a 12-month period that ends before the other performance period dates. This is allows only if a) you have an official Energy Star label that is associated with the score you will be using, AND b) your LEED application is submitted within 12 months of when the official label was issued. Do you have an official label?

I am working on LEED certifying a high-rise building with a current Energy Star label (current until Mar 2011). They would like a current Energy Star label in 2011 in addition to LEED certification in 2012. I cannot find any LEED documentation of the Energy Star "label" performance period exception Jenny listed above. If the building has an official Energy Star label issued in April 2011, I could use that score for LEED as long as the application is submitted by March 2012?

We are in a similar situation. We have three buildings: two dormitory buildings and one administration building that serves the dormitories. The buildings are separate and completely unconnected. They also each have their own mechanical systems. However, there is only one meter that collects data for all three buildings. The client has already achieved One EnergyStar label for the three buildings as a whole. In our understanding they should not have been able to do this. Can we proceed with doing LEED EB for the three buildings as a whole using the Energy Star label achieved only a few months ago, or will they have to submeter these buildings and achieve Energy Star scores for each one individually?