Dear all,

I am attempting LEED 2009 CS, EA Cr 5.1 & Cr 5.2.

My project is 4 multi-storey commercial buildings, whereby a different tenant occupies each floor of a building.

1) When considering Fans, do we need to install 1 submeter for all fans of the building, or 1 submeter per fan (meaning 1 submeter per tenant) ?

2) We have primary and secondary pumps. Should we submeter both types of pumps together, or submeter each separately?

3) There is a meter for "IT and small equipment", a meter for "fans", a meter for "pumps", and a meter for "total electricity consumption". The remaining category is the HVAC. Do we need to install a dedicated submeter for the HVAC, or are we allowed to subtract the IT, fans, and pumps consumption from the "Total electricity consumption", to get the remaining HVAC consumption?

Many thanks!