Mixed Use Building Residential + Commercial

There are no submetering requirements at all for this credit. The submetering of tenant spaces by fuel type will likely not produce much useful information for the M&V Plan. A letter from the owner would not be sufficient to document any potential outcomes related to the tenant spaces. The only documentation acceptable for changes would be a lease agreement that requires the tenant to make a certain change of follow a particular performance metric. You will need to account for how you will calibrate the energy model for the entire building including the tenant spaces within the M&V Plan. During design you should be thinking about how you will be gathering the data you need to calibrate the energy model from the whole building including the tenant spaces. In order to implement the M&V plan the tenant spaces would likely need to be occupied.