Can you please confirm which IPMVP Option most closely aligns with the following approach for both single-ECM and multi-ECM projects?

Q: Can you please confirm which IPMVP Option most closely aligns with the following approach for both single-ECM and multi-ECM projects?

A: Overall – an IPMVP Option approach consists of both a baseline method and a corresponding post-EEM (reporting period) measurement method.

Q: Perform Baseline Energy Metering - Energy meters are installed to the circuits feeding power to the addressed equipment/systems to isolate those systems from the rest of the building and capture pre-ECM(s) energy use. The baseline metering period for a given project is determined based on site local weather variations, the operating characteristics of the addressed equipment/system, and the proposed scope of work. These meters will remain installed during implementation of the ECMs.

A: [i]As stated, this Baseline approach seems to be focused on isolation of the retrofit/EEM with the installed meters. Given this information, this baseline approach for retrofit isolation with potential of all parameter measurement via the electric meters, would align with an Option B method of baseline determination.
[*][/i] [b][/b]

Q: Generate the Energy Baseline - The subhourly baseline period energy meter data in concert with coincident local weather data for the baseline period are used to derive the weather and time-of-week normalized baseline model for isolated systems at the building.

A: Same as above – appears to be stating retrofit isolation via energy meters – Option B – again, assuming the metering is capturing all parameters required for energy consumption and demand.

Q: Perform Post-ECM(s) Energy Metering - The energy meters that were installed for the baseline energy metering will be used to monitor and track the energy use of the addressed equipment/systems post-implementation of the ECMs. The post-ECM(s) energy metering period is one calendar year after the owner's acceptance of the implemented ECMs.

A: Same as above – retrofit isolation via meters which are capturing total retrofit energy use (all parameters) – used during reporting period for EEM savings determination – Option B.

Q: Measure the Actual Energy Savings - The actual energy savings for the project in aggregate (i.e., all ECMs combined) is measured by subtracting the post-ECM(s) annual energy use from the baseline annual energy use. The post-ECM(s) annual energy use is the aggregated post-ECM(s) energy meter data for the post-ECM(s) metering period. The baseline annual energy use is calculated based on the baseline model and weather data for the post-ECM(s) metering period.

A: Actual Energy Savings is not a defined IPMVP term - Verified Savings is used in IPMVP. Not clear what the method is describing but if total project savings are being calculated, the sum of each Option B savings as determined by a proper M&V methodology that ensures any interactions between ECMs and/or adjustments are properly accounted for, should merely be added together to determine the total project savings. Should not be referencing back to a whole building “baseline annual energy use” if that is what is being implied

Q: Verify Project Performance - The performance of the project in aggregate (i.e., all ECMs combined) is verified by comparing the actual annual energy savings to the estimated annual energy savings.

A: [b]Overall, correct - Verified Savings (as determined and reported by the M&V Option activities documented in the M&V Plan) would be compared to the estimated, expected or guaranteed savings - whichever is appropriate for the project requirements.[/b]