First, please see the various comments above that the reference to IPMVP for Case 1 should be ignored.
Notwithstanding the problems with the EAc3 Reference Guide material (mostly related to Case 2), the metering and utility payment requirements for Case 1 are OK and fairly clear. In this particular case the electrical requirements appear to be met (with the possible exception of the electricity for some of the fan coil units - clarification is needed on this issue). Allocating HVAC costs on a prorata area basis is acceptable provided that the "gross" costs reflect the actual HVAC utility cost for the billing period i.e. not a "flat" or constant rate built into the lease. See page 191 of the CI RG under "Payment" for further elaboration.