The link below, fromLEEDuser, indicates that if you can use actual utility bills x 50% x 2 yrs to calculate the required quantity of RECs as opposed to the EAc1 energy model design consumption x 35% x 2yrs.

I am not able to confirm this in the credit language or credit interpretations.

We have a LEED NC 2009 project that we are preparing the construction submittal for. Our actual energy consumption is substantially less than what our energy model suggests. We would like to be able to provide utility information, and use that as the basis of REC purchases.

Can actual utility bills be used instead of the Energy model?