Combined or separate submeters

Mike D

LEEDuser Basic Member

45 thumbs up

May 30, 2013

Does the credit require separate submeters for each equipment or can those be combined? Our project design includes a submeter that is for both the hot water and HAVC system combined. To what extent can submeters can combined? Many thanks!

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 05/31/2013 - 13:47

For Case 1 you need submeters by fuel type. For Case 2 you might need submeters by energy end use. In Case 2 submeters are not required if you can develop a viable M&V Plan without them. Submeters can be combined to the extent that you have a viable methodology to separate out the energy end uses. For M&V always focus on what data you need as an outcome and then figure out the least expensive what to get that data.

Mike D

LEEDuser Basic Member

45 thumbs up

Fri, 05/31/2013 - 15:37

Thanks Marcus, we are going for Case 1. The building is supplied by electricity only. So if only one submeter is installed, would that be enough? At the moment, the design includes one for lighting, one combined for plug loads and hot water, and one for mechanical equipment such as HVAC and fan coils..

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Fri, 05/31/2013 - 15:56

Sounds like one electric meter would do it.